[ { "id": 1081, "name": "Boom", "slug": "boom", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/99fad830d694e292b87e0628e50c052c9f87cf86.png", "website": "https://boomsupersonic.com/", "all_locations": "Centennial, CO, USA; Englewood, CO, USA", "long_description": "Boom Supersonic is transforming air travel with Overture, the world’s fastest airliner, optimized for speed, safety, and sustainability. Serving both civil and government markets, Overture will fly at twice the speed of today’s airliners and is designed to run on 100% sustainable aviation fuel (SAF). Symphony™, a Boom-led collaboration with industry leaders, is the propulsion system that will power Overture. Overture’s order book, including purchases and options from American Airlines, United Airlines, and Japan Airlines stands at 130 aircraft. Boom is working with Northrop Grumman for government and defense applications of Overture. Suppliers and partners collaborating with Boom on the Overture program include Collins Aerospace, Eaton, Florida Turbine Technologies (FTT), a business unit of Kratos Defense & Security Solutions, Inc., GE Additive, Safran Landing Systems, StandardAero and the United States Air Force. For more information, visit https://boomsupersonic.com\r\n\r\nBoom’s world-class engineering team comes from places including SpaceX, Boeing, Gulfstream, Virgin Galactic, Scaled Composites, NASA, and Bombardier. \r\n\r\nWe have uniquely challenging and world-changing opportunities for the most talented aerospace engineers, designers, and business people.", "one_liner": "Economically and environmentally sustainable supersonic travel", "team_size": 227, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1448142615, "tags": [ "Transportation", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2016", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/boom", "api": "https://yc-oss.github.io/api/batches/winter-2016/boom.json" }, { "id": 1304, "name": "Reebeez", "slug": "reebeez", "former_names": [], "small_logo_thumb_url": "/company/thumb/missing.png", "website": "http://www.reebeez.co/", "all_locations": "Austin, TX, USA", "long_description": "Reebeez develops efficient solid-state thermoelectrophotovoltaic microengines for UAVs that achieve flight times and payloads unrivaled by batteries and fuel cells.\n\nDue to weight limitations of engines, small aerial vehicles must rely on lithium polymer batteries that result in disappointing flight times and payloads. Reebeez presents a propulsion ​system powered by thermoelectrophotovoltaics (TEPV) that runs on lightweight combustible fuels to attain specific energy eight times better than lithium polymer batteries - at a third of the cost.", "one_liner": "Reebeez creates powerful microengines for UAVs. With a 2hr + flight…", "team_size": 2, "industry": "Industrials", "subindustry": "Industrials -> Drones", "launched_at": 1462207815, "tags": [ "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2016", "status": "Inactive", "industries": [ "Industrials", "Drones" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/reebeez", "api": "https://yc-oss.github.io/api/batches/summer-2016/reebeez.json" }, { "id": 12089, "name": "Heart Aerospace", "slug": "heart-aerospace", "former_names": [ "Dragonship" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/c550b32949bcde8cb176bd2fb2069bf1ca3cac65.png", "website": "http://www.heartaerospace.com", "all_locations": "Los Angeles, CA, USA", "long_description": "Heart makes electric airplanes. ", "one_liner": "Heart makes electric airplanes with an all-electric range of 250 miles", "team_size": 50, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1541712884, "tags": [ "Climate", "Electric Vehicles", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2019", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/heart-aerospace", "api": "https://yc-oss.github.io/api/batches/winter-2019/heart-aerospace.json" }, { "id": 12597, "name": "Lucid Bots", "slug": "lucid-bots", "former_names": [ "Lucid Drone Technologies", "Lucid Drone Tech" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/3ef3c01732ca1adf6e17c2105c507271f7b86744.png", "website": "https://lucidbots.com/", "all_locations": "Charlotte, NC, USA", "long_description": "At Lucid, we are a B2B robotics provider for dull, dirty, and dangerous jobs, starting with the cleaning industry, which has a 200% annual turnover rate. \r\n\r\nOur primary product is a drone that can clean anything from windows to roofs to stadium domes to industrial tanks. Our drones can clean up to 8x faster. Due to customer demand, we also launched a ground-based pressure-washing robot to complement our cleaning drone.\r\n\r\nWe support customers around the country who use our robots every day to clean properties with great safety and efficiency. We engineer, manufacture, and support our technology from a 20,000 sqft headquarters in Charlotte, NC.", "one_liner": "We build robots for dull, dirty, and dangerous jobs.", "team_size": 26, "industry": "Industrials", "subindustry": "Industrials -> Manufacturing and Robotics", "launched_at": 1556215532, "tags": [ "Robotics", "Drones", "Manufacturing", "Aerospace", "Self-Driving Vehicles" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2019", "status": "Active", "industries": [ "Industrials", "Manufacturing and Robotics" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/lucid-bots", "api": "https://yc-oss.github.io/api/batches/summer-2019/lucid-bots.json" }, { "id": 13140, "name": "Exosonic, Inc.", "slug": "exosonic-inc", "former_names": [ "Exosonic", "Inc.", "Exosonic" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/271f1ede7285afa6d625e1cb946615956221ce50.png", "website": "https://exosonic.com/", "all_locations": "Los Angeles, CA, USA", "long_description": "Exosonic is an early-stage aerospace start-up based in Los Angeles, CA developing supersonic adversary air UAVs to support the adversary air training mission for both commercial and government customers. The goal is to mature these supersonic UAVs to become loyal wingmen (or collaborative combat aircraft) and eventually develop quiet supersonic airliners from the lessons learned and profits generated by the supersonic UAV product line. Founded in 2019, Exosonic has raised $4.5M+ in private capital and $2M+ in AFWERX funding. The team has 15 FTEs and is developing a subscale flight test vehicle to demonstrate autonomy and potentially crewed-uncrewed teaming with a first flight timeframe of Q2 2023. ", "one_liner": "Developing supersonic UAVs as a pathway to quiet supersonic flight", "team_size": 14, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1588285488, "tags": [ "Drones", "Unmanned Vehicle", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2020", "status": "Inactive", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/exosonic-inc", "api": "https://yc-oss.github.io/api/batches/winter-2020/exosonic-inc.json" }, { "id": 22640, "name": "Albedo", "slug": "albedo", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/3429747f66833536a5f2b50b1cbea5ad275f53c8.png", "website": "https://albedo.com", "all_locations": "Denver, CO, USA", "long_description": "Albedo builds and operates satellites in Very Low Earth Orbit (VLEO) — a new orbital layer much closer to Earth than traditional satellites in LEO. Flying lower unlocks sharper imagery, faster communications, and real-time maneuverability with smaller, more efficient hardware.\r\n\r\nVLEO is naturally self-cleaning and resilient, offering a sustainable alternative to crowded low Earth orbit - providing diversification and redundancy for critical systems that we rely on in higher orbits. \r\n\r\nWith the only flight proven VLEO system on the market, Albedo is creating a new orbital infrastructure designed for speed, precision, and resilience.", "one_liner": "Full-stack VLEO satellite missions", "team_size": 55, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1611609475, "tags": [ "Hard Tech", "Satellites", "Climate", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Winter 2021", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/albedo", "api": "https://yc-oss.github.io/api/batches/winter-2021/albedo.json" }, { "id": 23369, "name": "REGENT", "slug": "regent", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/e0c83c9ecbf81c8809be20d15fe4abf91f2789dc.png", "website": "http://regentcraft.com", "all_locations": "North Kingstown, RI, USA", "long_description": "REGENT is building a new mode of transportation that will redefine regional mobility by 2026. Their first product, the seaglider, is an all-electric, hydrofoiling flying-boat that operates within a wingspan of the water's surface. By flying low on a cushion of air, seagliders unlock the ability to fly twice as far as an electric aircraft, while being regulated by maritime authorities enabling market entry for a fraction of the cost.\r\n \r\nREGENT has de-risked seaglider technology with a ¼-scale flying demonstration vehicle. By this summer, REGENT will fly humans on the 15,000 lb (7000kg) first full-scale prototype seaglider, which will be the largest electric-flying machine in history.\r\n\r\nBy late 2026, REGENT’s customers - airlines and ferry companies – will begin commercial seaglider service on the 12-seat initial product. A 100 passenger version, already with firm orders, will follow several years later.\r\n\r\nIn just four years, REGENT has accumulated >$10B in pre-orders (including firm deposits) from airlines and ferry companies around the world. Currently a team of 100, REGENT is led by MIT-trained, ex-Boeing engineers Billy Thalheimer and Mike Klinker. REGENT has raised over $100M to date from the likes of Founders Fund, Japan Airlines, Hawaiian Airlines and Lockheed Martin, and is on contract with the US Marine Corps.", "one_liner": "All-electric seagliders for fast, affordable regional transportation", "team_size": 40, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1616029701, "tags": [ "Climate", "Electric Vehicles", "Aerospace", "Maritime" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2021", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/regent", "api": "https://yc-oss.github.io/api/batches/winter-2021/regent.json" }, { "id": 23819, "name": "Inversion Space", "slug": "inversion-space", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/e2e06a383cc8407d77b06a0c887415abd235111b.png", "website": "https://www.inversionspace.com/", "all_locations": "Los Angeles, CA, USA", "long_description": "", "one_liner": "Turning space into a transportation layer for Earth", "team_size": 28, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1629401735, "tags": [ "Hard Tech", "Hardware", "Transportation", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2021", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/inversion-space", "api": "https://yc-oss.github.io/api/batches/summer-2021/inversion-space.json" }, { "id": 24039, "name": "Kalam Labs", "slug": "kalam-labs", "former_names": [ "Kalam Labs", "Kiddernet (prev. Kalam Labs)", "AskPenny", "Kiddernet (prev Kalam Labs)", "AskPenny" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/af09359ecc24430a6054310be3115645fc95f1d8.png", "website": "http://www.kalamlabs.in", "all_locations": "India", "long_description": "Kalam Labs has developed world's highest flying UAVs - deployable from high-altitude balloons they replace satellites to provide high-res EO/IR and hyperspectral reconnaissance.", "one_liner": "Near Space Flying Machines", "team_size": 10, "industry": "Industrials", "subindustry": "Industrials -> Drones", "launched_at": 1625919461, "tags": [ "Drones", "Aerospace", "AI" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2021", "status": "Active", "industries": [ "Industrials", "Drones" ], "regions": [ "India", "South Asia" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/kalam-labs", "api": "https://yc-oss.github.io/api/batches/summer-2021/kalam-labs.json" }, { "id": 24868, "name": "HEO Robotics", "slug": "heo-robotics", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/4eb6dbf348024d4e5ac4fca59b2986a44df80f67.png", "website": "https://www.heo-robotics.com/", "all_locations": "Sydney, NSW, Australia", "long_description": "HEO Robotics visually monitors satellites for governments and defence. We do this by transforming existing Earth observation satellites with software to image other satellites as they fly close by.", "one_liner": "We visually monitor space objects for governments and defense", "team_size": 3, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1627433056, "tags": [ "Space Exploration", "Aerospace", "Defense" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2021", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "Australia", "Oceania" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/heo-robotics", "api": "https://yc-oss.github.io/api/batches/summer-2021/heo-robotics.json" }, { "id": 26134, "name": "Beyond Aero", "slug": "beyond-aero", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/c372268dde1c1e5ed3e639d9cb8603d8cf3639ea.png", "website": "https://www.beyond-aero.com/", "all_locations": "", "long_description": "Beyond Aero is building the first electric business aircraft powered by hydrogen propulsion, enabling six passengers to fly up to 800 NM (1,500 km), a range unattainable with battery-electric aircraft. Founded in December 2020, the company is redesigning the architecture of an aircraft around hydrogen-electric propulsion, focusing on fuel cell technology, gaseous hydrogen tank integration, and advanced cooling systems. With offices in Toulouse, Paris, and Los Angeles, the company boasts a team of over 80 highly qualified engineers from leading aerospace companies. Beyond Aero has secured over $50 million in funding, backed by investors such as Giant Ventures, Bpifrance, and prior supporters like Initialized Capital, Female Founders Fund, and 7 Percent Ventures. Beyond Aero also completed Y Combinator in 2022. The company has secured $1.5bn in Letters of Intent (LOIs), completed France’s first manned, fully hydrogen-electric flight, and acquired Universal Hydrogen Co.'s assets, IP, and flight data. Beyond Aero is a member of the World Economic Forum’s First Movers Coalition and the Alliance for Zero Emission Aviation, underscoring its commitment to electrifying aviation with hydrogen propulsion.", "one_liner": "First electric business aircraft designed for hydrogen propulsion", "team_size": 80, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1639500772, "tags": [ "Hydrogen Energy", "Airplanes", "Energy", "Electric Vehicles", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2022", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/beyond-aero", "api": "https://yc-oss.github.io/api/batches/winter-2022/beyond-aero.json" }, { "id": 26880, "name": "Airhart Aeronautics", "slug": "airhart-aeronautics", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/6d2c3077b0a260101b4efa34338d48f2bcb7a825.png", "website": "https://www.airhartaero.com/", "all_locations": "Los Angeles, CA, USA", "long_description": "Airhart is making airplanes anyone can fly. Our semi-autonomous tech will enable 10x more people to fly their own planes and make flying to Tahoe as easy as driving to the grocery store\r\n", "one_liner": "Airplanes anyone can fly", "team_size": 6, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1658522825, "tags": [ "Airplanes", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2022", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/airhart-aeronautics", "api": "https://yc-oss.github.io/api/batches/summer-2022/airhart-aeronautics.json" }, { "id": 27052, "name": "Quindar", "slug": "quindar", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/bab55689155fe5f27aa4e87f73ddcae81fde5f8b.png", "website": "https://www.quindar.space", "all_locations": "Denver, CO, USA", "long_description": "Quindar is a web app used by satellite owners to analyze, test and operate their constellation. For example, Airbus could use Quindar to operate their satellite fleet with minimal human intervention.\r\n \r\nWe’re six former OneWeb engineers who helped build the software platform that currently operates the second largest satellite constellation in the world.\r\n \r\nThe space industry is shifting from companies launching a handful of satellites over a decade, to launching hundreds of satellites EACH in just a few years. Our SaaS platform automates mission management and for a single engineer to operate hundreds of satellites instead of the traditional model of many engineers operating a single satellite.", "one_liner": "Datadog for Space", "team_size": 57, "industry": "B2B", "subindustry": "B2B", "launched_at": 1657040679, "tags": [ "SaaS", "Space Exploration", "Satellites", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2022", "status": "Active", "industries": [ "B2B" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/quindar", "api": "https://yc-oss.github.io/api/batches/summer-2022/quindar.json" }, { "id": 27198, "name": "Velontra", "slug": "velontra", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/f91f60fef77675614e979bd8ce01941da0e92c40.png", "website": "https://www.velontra.com/", "all_locations": "Cincinnati, OH, USA", "long_description": "Velontra is building a hypersonic space plane that can takeoff from anywhere in any weather. This horizontal takeoff increases launch reliability and enables customers to directly access any orbit. Our air-breathing propulsion system is up to 6 times more fuel efficient than any rocket, and uses oxygen from the air which creates thousands of pounds of additional payload capacity. \r\n\r\nWe have millions in current government/commercial contracts and LOI’s. \r\n\r\nWe have assembled a team of industry experts, government senior executives, and a NASA astronaut. \r\n\r\nThe hypersonic space plane will work by taking off from any runway with a jet propulsion system. Next, it will climb to over 100,000’ and Mach 5. At this point, it will launch a 2nd stage rocket directly into the desired Low Earth Orbit. \r\n\r\nVelontra is “boldly going where no one has gone before.”", "one_liner": "Hypersonic space plane that can take-off from any location and weather", "team_size": 5, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1657640799, "tags": [ "Commercial Space Launch", "Hardware", "Drones", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2022", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/velontra", "api": "https://yc-oss.github.io/api/batches/summer-2022/velontra.json" }, { "id": 27960, "name": "Radical", "slug": "radical", "former_names": [ "Radical Inc." ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/d6c4df45192bc64b3d0c669324d48fcd4465995d.png", "website": "https://www.radicalaero.com/", "all_locations": "Seattle, WA, USA", "long_description": "Radical’s StratoSats are autonomous platforms that provide satellite-like services on demand. They fly within Earth’s atmosphere to provide persistent, high performance infrastructure across applications in earth observation, connectivity, and more. Unlike satellites, StratoSats navigate freely without the need for rocket launches or orbits - reducing costs, increasing flexibility, and ensuring customers get the targeted coverage they need.", "one_liner": "Building persistent, high-performance infrastructure in the sky", "team_size": 6, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1672782390, "tags": [ "Drones", "Satellites", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2023", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/radical", "api": "https://yc-oss.github.io/api/batches/winter-2023/radical.json" }, { "id": 28593, "name": "HyLight", "slug": "hylight", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/17e115f6387d31c268302079d59ab1981c37d8ca.png", "website": "https://www.hylight.aero/", "all_locations": "Paris, Île-de-France, France", "long_description": "HyLight builds and operates autonomous airships for long range monitoring. We focus on detecting methane leaks on pipelines and defects on power lines.\r\n\r\nOur innovation, the HyLighter, is a crossover between drone and airship technology. Like a drone, it is easily controllable and transportable. And, like an airship, it is extremely energy-efficient, enabling it to fly for up to 10 hours at slow speed (22mph) for optimal data collection which represents a range of 220miles. \r\n\r\nToday, energy infrastructure operators struggle with conducting inspections that are simultaneously: massive and precise. HyLight offers a solution to precisely detect issues on the infrastructure at an industrial scale, and all of this without emitting GHGs.\r\n\r\nWe are 3 co-founders experienced in hardware and energy companies with Masters in Mechanical Engineering, Computer Science and Business from the best Engineering and Business School in France.\r\n\r\nWe have developed 5 different flying aircrafts and signed 5 pilots programs with major energy infrastructure operators. We also have LOIs worth over $3.5M.", "one_liner": "Small unmanned hydrogen airships for long range monitoring", "team_size": 22, "industry": "Industrials", "subindustry": "Industrials -> Climate", "launched_at": 1687803555, "tags": [ "Hydrogen Energy", "B2B", "Climate", "Energy", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2023", "status": "Active", "industries": [ "Industrials", "Climate" ], "regions": [ "France", "Europe" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": true, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/hylight", "api": "https://yc-oss.github.io/api/batches/summer-2023/hylight.json" }, { "id": 29183, "name": "Navier AI", "slug": "navier-ai", "former_names": [ "NavierAI" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/013b05510174120a0b1551eb38a764500bbd5525.png", "website": "http://navier.ai", "all_locations": "San Francisco, CA, USA", "long_description": "Navier AI is building the first Agent-Driven Engineering platform.\r\n\r\nWe believe engineers should focus on designing great products, not wrestling with simulation software.\r\n\r\nNavier AI makes it simple to run CFD simulations at scale through our web-based platform built on OpenFOAM, the industry-standard solver for CFD. Our AI agents autonomously handle the complex, time-consuming steps of simulation—from geometry cleanup and meshing to solver configuration and cloud resource management.\r\n\r\nBy automating the tedious parts of the workflow, we enable engineering teams to move faster, explore more design possibilities, and spend their time on high-value engineering decisions.", "one_liner": "Agent-Driven Engineering", "team_size": 7, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1708536461, "tags": [ "Aerospace", "AI", "Automotive" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Winter 2024", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/navier-ai", "api": "https://yc-oss.github.io/api/batches/winter-2024/navier-ai.json" }, { "id": 29277, "name": "Basalt", "slug": "basalt", "former_names": [ "Basalt Tech" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/05acac6bcc5d9a03dbabb03c39fa62276a5ef6ea.png", "website": "https://basalt.space/", "all_locations": "San Francisco, CA, USA", "long_description": "Basalt is building self-flying satellite constellations for enterprise customers, no prior aerospace experience or expertise needed! Powered by our spacecraft OS, Basalt provides a seamless experience, enabling users to fly and stream data from their own tailored satellite constellation from an app on their phones or laptops. \r\n\r\nThe company is founded by Max Bhatti and Alex Choi, lead engineers at the MIT CubeSat program. Previously, the duo worked as systems engineers at SpaceX, and the UK Ministry of Defense. Basalt Tech recently received its seed investment as part of the Y Combinator W24 batch, and is currently in technical development.", "one_liner": "Constellations as a Service", "team_size": 5, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1706583323, "tags": [ "Aerospace", "Enterprise Software", "Automation" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2024", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/basalt", "api": "https://yc-oss.github.io/api/batches/winter-2024/basalt.json" }, { "id": 29381, "name": "Elodin", "slug": "elodin", "former_names": [ "Elodin Systems", "Inc", "Elodin", "Elodin Systems" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/1c69ab06e9dcd05c2d8d6257e045ed1514a741f0.png", "website": "https://elodin.systems/", "all_locations": "San Francisco, CA, USA", "long_description": "Elodin creates flight software, simulations, and hardware for drones, satellites, and defense.", "one_liner": "Unified flight software and hardware for the mission of tomorrow", "team_size": 5, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1705381687, "tags": [ "Hard Tech", "Drones", "Satellites", "Rocketry", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Winter 2024", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/elodin", "api": "https://yc-oss.github.io/api/batches/winter-2024/elodin.json" }, { "id": 29597, "name": "Spaceium Inc", "slug": "spaceium-inc", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/0afea0e3a81a3c4895401d9a1e4f5620a04a076b.png", "website": "https://spaceium.com", "all_locations": "", "long_description": "Spaceium builds fully automated space stations to refuel and repair spacecraft. We have secured $86.1 million in binding commercial contracts and have an additional $230 million in the pipeline. Additionally, we have 1 billion dollars in letters of intent. We have successfully tested our hardware, which will launch to space next year. \r\n\r\nOur fully automated space stations will efficiently store and transfer both cryogenic (extremely cold) and non-cryogenic fuels with zero loss during storage and transfer. And they can transfer fuel seamlessly to any spacecraft design using our proprietary modular robotic arm.\r\n\r\nOur customers include launch vehicles, orbital transfer vehicles, moon landers, and spacecraft that benefit from increased payload capacity and extended travel capabilities. Our long-term vision is to build service hubs along the space superhighway to connect Earth to Moon and Mars and help humanity to become multi multi-planetary species\r\n", "one_liner": "In-Space Refueling", "team_size": null, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1715783569, "tags": [ "Hard Tech", "Robotics", "Space Exploration", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2024", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "Unspecified" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/spaceium-inc", "api": "https://yc-oss.github.io/api/batches/summer-2024/spaceium-inc.json" }, { "id": 29623, "name": "Entangl", "slug": "entangl", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/5593913bae70a1285b652709232688417e1071ac.png", "website": "https://www.entangl.com/", "all_locations": "San Francisco, CA, USA", "long_description": "Entangl uses AI to detect and automatically resolve issues in data center engineering and operations, ensuring efficiency and uptime. ", "one_liner": "Find & resolve issues in data center engineering & operations using AI", "team_size": 11, "industry": "B2B", "subindustry": "B2B -> Engineering, Product and Design", "launched_at": 1716219164, "tags": [ "Artificial Intelligence", "Aerospace", "Enterprise Software", "Automation", "Automotive" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2024", "status": "Active", "industries": [ "B2B", "Engineering, Product and Design" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Growth", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/entangl", "api": "https://yc-oss.github.io/api/batches/summer-2024/entangl.json" }, { "id": 29650, "name": "Sorcerer", "slug": "sorcerer", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/543dab64586e13bb93c11e6012ecd070fb8c8a67.png", "website": "https://sorcerer.earth", "all_locations": "San Francisco, CA, USA", "long_description": "Sorcerer is deploying a global network of persistent airborne sensors to fuel advanced weather forecasting. Our high-altitude balloons collect 1000x more data than existing systems and are already used daily by meteorologists to track extreme weather across the US and Central America.", "one_liner": "Building a nervous system for the atmosphere", "team_size": 4, "industry": "Industrials", "subindustry": "Industrials -> Climate", "launched_at": 1720630564, "tags": [ "Artificial Intelligence", "Hard Tech", "Hardware", "Climate", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2024", "status": "Active", "industries": [ "Industrials", "Climate" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": true, "url": "https://www.ycombinator.com/companies/sorcerer", "api": "https://yc-oss.github.io/api/batches/summer-2024/sorcerer.json" }, { "id": 29680, "name": "Ares Industries", "slug": "ares-industries", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/c1bb6e6d5b88de1027f26cd87fddd83304d2d58e.png", "website": "https://aresindustries.com", "all_locations": "Los Angeles, CA, USA", "long_description": "", "one_liner": "Building low-cost cruise missiles ", "team_size": 2, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1724193978, "tags": [ "Aerospace", "Industrial" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2024", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/ares-industries", "api": "https://yc-oss.github.io/api/batches/summer-2024/ares-industries.json" }, { "id": 29814, "name": "Vendra", "slug": "vendra", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/929ad75b7088b9721f87d1e0e30daae50d49198f.png", "website": "https://vendra.io/", "all_locations": "San Francisco, CA, USA", "long_description": "Vendra makes it faster and easier to get custom parts manufactured in America. \r\n\r\nSubmit one RFQ and Vendra turns your technical requirements into custom manufactured parts - routing work through qualified US suppliers, gathering competitive quotes, and managing production through delivery.\r\n\r\nWe're ITAR registered and manufacture parts for American aerospace and defense leaders. Customers include Anduril, Mach Industries, Relativity Space, Castelion, and Planet Labs.\r\n\r\nSubmit an RFQ at www.vendra.io to get started today!", "one_liner": "Custom Parts, Manufactured in America 🇺🇸", "team_size": 7, "industry": "Industrials", "subindustry": "Industrials -> Manufacturing and Robotics", "launched_at": 1724084407, "tags": [ "Hardware", "Manufacturing", "Supply Chain", "Aerospace", "Defense" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Summer 2024", "status": "Active", "industries": [ "Industrials", "Manufacturing and Robotics" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/vendra", "api": "https://yc-oss.github.io/api/batches/summer-2024/vendra.json" }, { "id": 30095, "name": "Consus", "slug": "consus", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/bbe9d08b52107f4ba06be791e9808aa96113cd5f.png", "website": "https://www.consus.io", "all_locations": "San Francisco, CA, USA; Remote", "long_description": "Consus is an API that routes all AI requests to secure and compliant infrastructure. Aerospace and defense companies use the API to access the latest models without worrying about paperwork or infrastructure engineering. Consus manages the compliance and backend work so you can plug AI into an application and get to work. ", "one_liner": "The fastest and cheapest way to use AI with ITAR or CUI data. ", "team_size": 1, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1732222348, "tags": [ "Artificial Intelligence", "Developer Tools", "Aerospace", "Defense" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Fall 2024", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Fully Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/consus", "api": "https://yc-oss.github.io/api/batches/fall-2024/consus.json" }, { "id": 30099, "name": "Gander", "slug": "gander", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/103e5e968261b6e0f5f380738a8663b4974fa3c8.png", "website": "https://usegander.com", "all_locations": "New York, NY, USA", "long_description": "Gander is building AI-powered technology that allows private jet operators to coordinate, maintain, and monetize their fleets all in one place.", "one_liner": "Automation System for Global Aviation", "team_size": 7, "industry": "B2B", "subindustry": "B2B -> Operations", "launched_at": 1731944906, "tags": [ "Artificial Intelligence", "SaaS", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Fall 2024", "status": "Acquired", "industries": [ "B2B", "Operations" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/gander", "api": "https://yc-oss.github.io/api/batches/fall-2024/gander.json" }, { "id": 30110, "name": "Forerunner AI", "slug": "forerunner-ai", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/683490b8ed63456c153999da3c193d23b5d08e78.png", "website": "https://tryforerunner.com", "all_locations": "San Francisco, CA, USA", "long_description": "Forerunner is the AI-powered platform for aircraft maintenance, repair, and overhaul.", "one_liner": "AI that gets aircraft flying faster", "team_size": 2, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1730181783, "tags": [ "Airlines", "Aerospace", "AI" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Fall 2024", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/forerunner-ai", "api": "https://yc-oss.github.io/api/batches/fall-2024/forerunner-ai.json" }, { "id": 30316, "name": "Reditus Space", "slug": "reditus-space", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/f567bf243e624ac80b841cec50ec05ef7e87c1ac.png", "website": "https://www.reditus.space/", "all_locations": "Atlanta, GA, USA", "long_description": "We are making reusable satellites for zero-g manufacturing & Hypersonic Technology Development. \r\nOur first orbital recovery mission is set to launch in Q4 2026.", "one_liner": "Reusable Satellites", "team_size": 12, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1739340612, "tags": [ "Hard Tech", "Manufacturing", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Winter 2025", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": true, "url": "https://www.ycombinator.com/companies/reditus-space", "api": "https://yc-oss.github.io/api/batches/winter-2025/reditus-space.json" }, { "id": 30417, "name": "GroundControl", "slug": "groundcontrol", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/aa0a54f0fef4c64097aee43f99b1b40bf7bda56a.png", "website": "https://rungroundcontrol.com/", "all_locations": "San Francisco, CA, USA", "long_description": "GroundControl builds mission-critical software for manufacturers in highly-regulated industries (aerospace, defense, medical)\r\n\r\nOur core product automates lengthy, complex, and regulated quality documentation in aerospace manufacturing.\r\n\r\nAs an example, the Boeing 777 is made up of over 3 million parts sourced from manufacturers around the world. These manufacturers must complete quality documentation for every part on this aircraft (machined parts, printed circuit boards, wire harnesses, assemblies, and more).\r\n\r\nGroundControl helps manufacturers complete this required documentation accurately, in minutes instead of days.", "one_liner": "Vertical AI for highly-regulated manufacturing", "team_size": 8, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1744173288, "tags": [ "SaaS", "Manufacturing", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Spring 2025", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada", "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/groundcontrol", "api": "https://yc-oss.github.io/api/batches/spring-2025/groundcontrol.json" }, { "id": 30556, "name": "Cascade Space", "slug": "cascade-space", "former_names": [ "Heliosphere Network Corporation" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/36e55270dbc5bebe580db836e83f643f2121440a.png", "website": "https://cascadespace.com", "all_locations": "San Francisco, CA, USA", "long_description": "Cascade Space is building the commercial alternative to the Deep Space Network. Our first ground station, Earth Station Zero, will be online and downlinking data from the Moon in 2026, with plans to scale to a full global network by 2028.", "one_liner": "Commercial alternative to the Deep Space Network", "team_size": 7, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1746647881, "tags": [ "Hard Tech", "Hardware", "SaaS", "Aerospace", "Industrial" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Spring 2025", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/cascade-space", "api": "https://yc-oss.github.io/api/batches/spring-2025/cascade-space.json" }, { "id": 30559, "name": "Godela", "slug": "godela", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/fe1589548b774d33ca4f20c5020467a9627f9c13.png", "website": "http://godela.ai", "all_locations": "San Francisco, CA, USA", "long_description": "What if every experiment you wanted to run could be modeled using AI? \r\nGodela is an AI-powered physics engine that gives engineers faster, cheaper replacement to simulations and physical prototypes.\r\nNo set up, no wait. Just ask—and get simulation quality result.\r\n", "one_liner": "AI Physics Engine to replace simulations and prototypes", "team_size": 10, "industry": "B2B", "subindustry": "B2B -> Engineering, Product and Design", "launched_at": 1747413596, "tags": [ "Artificial Intelligence", "Hard Tech", "Hardware", "Aerospace", "ML" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Spring 2025", "status": "Active", "industries": [ "B2B", "Engineering, Product and Design" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": true, "url": "https://www.ycombinator.com/companies/godela", "api": "https://yc-oss.github.io/api/batches/spring-2025/godela.json" }, { "id": 30631, "name": "Null Labs", "slug": "null-labs", "former_names": [ "Corvus Defense" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/5c6d34be502792f6dd14717502e2286fd5399a8b.png", "website": "https://n0labs.com", "all_locations": "San Francisco, CA, USA", "long_description": "We provide defense companies with simulation infrastructure to train and validate autonomous systems.\r\n", "one_liner": "End-to-end Simulation for Defense Autonomy", "team_size": 2, "industry": "Industrials", "subindustry": "Industrials -> Defense", "launched_at": 1763086396, "tags": [ "Robotics", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Fall 2025", "status": "Active", "industries": [ "Industrials", "Defense" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/null-labs", "api": "https://yc-oss.github.io/api/batches/fall-2025/null-labs.json" }, { "id": 30881, "name": "Wardstone", "slug": "wardstone", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/12a498451818daa71ba01c88400ac7f241e33a03.png", "website": "https://www.wardstone.space", "all_locations": "El Segundo, CA, USA", "long_description": "Wardstone is a space defense-tech company developing next-generation capabilities to protect the United States and its allies from missiles and other space-based threats. We design, build, and deploy satellites equipped with space-based interceptors to kinetically counter hypersonic and ballistic missiles.", "one_liner": "Satellites for Missile Defense", "team_size": 7, "industry": "Industrials", "subindustry": "Industrials -> Aviation and Space", "launched_at": 1758642388, "tags": [ "Hard Tech", "Satellites", "Rocketry", "Aerospace", "Defense" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Fall 2025", "status": "Active", "industries": [ "Industrials", "Aviation and Space" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": true, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/wardstone", "api": "https://yc-oss.github.io/api/batches/fall-2025/wardstone.json" }, { "id": 30965, "name": "Icarus", "slug": "icarus", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/641db1cdc907f274cb944fd6796edc486aa6d653.png", "website": "https://www.icarus.one/", "all_locations": "Los Angeles, CA, USA", "long_description": "Icarus is building the modern-day U-2 spy plane. Our autonomous solar aircraft fly at 60,000 feet for weeks at a time, eventually months and years, above weather and below satellites. They deliver persistent intelligence and connectivity for the military at a fraction of the cost of existing systems. The stratosphere is the forgotten frontier.", "one_liner": "Stratospheric birds for defense", "team_size": 50, "industry": "Industrials", "subindustry": "Industrials -> Defense", "launched_at": 1759599519, "tags": [ "Hardware", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Fall 2025", "status": "Active", "industries": [ "Industrials", "Defense" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/icarus", "api": "https://yc-oss.github.io/api/batches/fall-2025/icarus.json" }, { "id": 31021, "name": "Zephyr Fusion", "slug": "zephyr-fusion", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/c896e2a98ef03115005ed5ae8acd4500d7eea752.png", "website": "https://www.zephyrfusion.com", "all_locations": "San Diego, CA, USA", "long_description": "Zephyr Fusion is building the first in-orbit fusion power source: a megawatt-class reactor enabling large-scale industry in space, at a fraction of the cost of equivalent solar.\r\n\r\nFounded by former physicists from Lawrence Livermore and Oak Ridge National Laboratories, Zephyr leverages decades of fusion research to deliver a compact magnetic confinement system designed to take advantage of the space environment.", "one_liner": "Powering tomorrow's industrial revolution in space", "team_size": 2, "industry": "Industrials", "subindustry": "Industrials -> Energy", "launched_at": 1762532179, "tags": [ "Fusion Energy", "Hard Tech", "Satellites", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Fall 2025", "status": "Active", "industries": [ "Industrials", "Energy" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/zephyr-fusion", "api": "https://yc-oss.github.io/api/batches/fall-2025/zephyr-fusion.json" }, { "id": 31180, "name": "Seeing Systems", "slug": "seeing-systems", "former_names": [ "Seeing Systems Ltd", "Seeing Systems", "Seeing Systems Ltd" ], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/8d8e226478cb43c163b19e22186c3bab3bdb9668.png", "website": "https://www.seeing-systems.com", "all_locations": "London, England, United Kingdom", "long_description": "We engineer inexpensive, autonomous strike drones designed to operate in the most contested combat environments on Earth!\r\n\r\nBy combining true hardware modularity with an agentic control system that lowers cognitive load on operators, we enable faster upgrades, broader adoption, and more than 2x reduction in lifecycle cost.\r\n\r\nOur customers and partners include the UK Royal Marine Commandos, several other units in the UK, and 4 other NATO forces, and we are currently shipping prototypes for iterative feedback.\r\n\r\nThink of us as Anduril, but with worse weather, and better banter.", "one_liner": "Modular AI-Commanded Drones for Defence", "team_size": 2, "industry": "Industrials", "subindustry": "Industrials -> Defense", "launched_at": 1768422348, "tags": [ "Artificial Intelligence", "Hardware", "Drones", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": true, "nonprofit": false, "batch": "Winter 2026", "status": "Active", "industries": [ "Industrials", "Defense" ], "regions": [ "United Kingdom", "Europe", "Remote", "Partly Remote" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/seeing-systems", "api": "https://yc-oss.github.io/api/batches/winter-2026/seeing-systems.json" }, { "id": 31452, "name": "Degla Inc", "slug": "degla-inc", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/9b4aa40c1f823de9d3ec9a6c4b04e1e382dc5a85.png", "website": "https://degla.ai", "all_locations": "Boston, MA, USA", "long_description": "We turn natural Language into Multi-Drone Mission execution. Degla is built around a simple idea: once you’ve expressed your intent, the system owns the problem.You don’t babysit drones. You don’t micromanage failures. You don’t rewrite plans. You state the goal, Degla figures out how.", "one_liner": "The fully autonomous intelligence layer in the sky.", "team_size": 2, "industry": "Industrials", "subindustry": "Industrials -> Drones", "launched_at": 1775570807, "tags": [ "Artificial Intelligence", "Hard Tech", "Drones", "Aerospace", "AI" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Fall 2026", "status": "Active", "industries": [ "Industrials", "Drones" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/degla-inc", "api": "https://yc-oss.github.io/api/batches/fall-2026/degla-inc.json" }, { "id": 31486, "name": "Ornadyne", "slug": "ornadyne", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/a1b22be817e9ad2d1f4b3a606e7b94d10bc6a8d6.png", "website": "https://ornadyne.com/", "all_locations": "San Francisco, CA, USA", "long_description": "Ornadyne builds flapping-wing drones for reconnaissance that look, fly, and sound like birds.\r\n\r\nToday’s drones are easy to detect acoustically, visually, and electronically. As counter-UAS systems improve, traditional quadcopters and fixed-wing UAS systems are becoming increasingly ineffective for close-range surveillance. \r\n\r\nFlapping-wing aircraft have existed for years, but have lacked the performance, endurance, and control required for real-world deployment. We’re changing that by engineering a high-performance, stealth-optimized system built from first principles for efficiency, autonomy, and reliable field use.\r\n\r\nThe final frontier of surveillance won’t look like machines; it will look like wildlife already in the sky. \r\n\r\nMaybe birds aren't real?", "one_liner": "We're building robot birds for surveillance.", "team_size": 4, "industry": "Industrials", "subindustry": "Industrials -> Drones", "launched_at": 1777342640, "tags": [ "Hard Tech", "Robotics", "Drones", "Aerospace", "Defense" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Spring 2026", "status": "Active", "industries": [ "Industrials", "Drones" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/ornadyne", "api": "https://yc-oss.github.io/api/batches/spring-2026/ornadyne.json" }, { "id": 33012, "name": "Cosmic Robotics", "slug": "cosmic-robotics", "former_names": [], "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/610b3f44c95c65ea346121a48c57b8c81a3788ce.png", "website": "https://www.cosmicrobotics.com/", "all_locations": "San Francisco, CA, USA", "long_description": "Our mission is to build a city on Mars. \r\n\r\nCosmic-1, the first equipment in our fleet, is an autonomous robot capable of heavy-lift manipulation. Its been deployed on some of the largest solar farms in the US, more than doubling labor productivity across tens of thousands of panel installs. \r\n\r\nWe're scaling in solar, expanding in data centers, and building lunar construction robotics under contract with NASA.", "one_liner": "Autonomous construction on Earth and beyond", "team_size": 8, "industry": "Industrials", "subindustry": "Industrials", "launched_at": 1783106253, "tags": [ "Hard Tech", "Robotics", "Construction", "Aerospace" ], "tags_highlighted": [], "top_company": false, "isHiring": false, "nonprofit": false, "batch": "Summer 2026", "status": "Active", "industries": [ "Industrials" ], "regions": [ "United States of America", "America / Canada" ], "stage": "Early", "app_video_public": false, "demo_day_video_public": false, "app_answers": null, "question_answers": false, "url": "https://www.ycombinator.com/companies/cosmic-robotics", "api": "https://yc-oss.github.io/api/batches/summer-2026/cosmic-robotics.json" } ]