Find a company

Leobit is a full-cycle . NET, AI, and web application development provider for technology companies and startups primarily located in the US, EU, and the UK. We have representative offices in Austin, TX (USA), Tallinn (Estonia), Kraków (Poland), London (UK) and the development center in Lviv (Ukraine) with 170+ talented software engineers, architects, QA experts, and UI/UX designers. Our Achievements:Microsoft Solutions Partner - Digital & App InnovationISO 9001:2015 and ISO 27001:2022 CertifiedISTQB Platinum PartnerTop . NET Developers in 2025 by ClutchCustomer Service Department of the Year in 2025 by Stevie® AwardsLeobit has successfully delivered over 150 well-designed and well-factored web & mobile applications to technology companies ranging from Fortune 500 firms to Silicon Valley startups. Our Services:. NET software developmentAI/LLM software developmentCustom software developmentDedicated development teamWeb app developmentMobile app developmentCloud developmentSoftware architecture designUI/UX designBusiness analysisQuality assuranceApp support & maintenanceTechnology consultingOur Key Technologies:Microsoft Stack: . NET, ASP. NET, C#, Azure, WCF, Entity Framework, MaUI, BlazorWeb/Frontend: React, Angular, Vue, jQuery, TypeScriptBackend: . NET Core/C#, Ruby, Node, PHP, PythonMobile Technology Stack: iOS, Android, Flutter, Swift, KotlinAI integration

The InterLink company started its history in 1998 with several enthusiastic people. Their cooperation established InterLink company in 2000. We have experience building own products and working with our customers throughout the world on their ideas making them happen. We were one of the first companies that joined the Agile manifesto and actively use agile processes like Scrum and Kanban.  Among our customers are entrepreneurs with ambition startup ideas and well-known corporations (Nokia, Siemens, Xerox, BMW, Dell).  We know how to build fast for startups and how to build robust and long-living applications for enterprises.

At Unicore Group, we specialize in delivering end-to-end solutions that transform your ideas into thriving businesses. From conceptualizing your vision to acquiring and retaining users, our customized services are designed to meet your unique goals and drive sustainable growth. Our Core ExpertiseCustom Solution Development: Create custom software and tools to meet the specific needs of your business. Outstaffing Services: Expand your team with top-quality professionals who can be easily integrated into your projects. Design on Demand: Elevate your brand with visually stunning and impactful designs tailored for your audience. Mobile Marketing Personalised: in-app traffic attraction solutionsWhy Choose Unicore Group?We are dedicated to understanding your business’s unique challenges and opportunities. By working closely with you, we ensure that every solution is customized to deliver measurable results. From strategy to execution, our team provides exceptional service and support at every stage of your journey. Let’s build your success together.

Reenbit is a сlient-focused software development company based in Eastern Europe. We stand out from the crowd because we're a solution partner ready to take customer challenges head on. We propose profound technical expertise and can work within any models that fit our client's needs, offering a dedicated team approach or staff augmentation. Our core specialities are software development and cloud consulting. Additionally, we offer mobile development, quality assurance, business analysis and business intelligence services. Cloud engineering services:Cloud consultingCloud developmentData engineeringSecurityDevOps maintenance and supportSoftware development services: Web developmentBack-end developmentFront-end developmentSaaS developmentDatabase consultingPOC, MVP, Prototype improvementWe are experts in the following technologies and tools:. NET: . NET Framework, . NET CORE, . NET 5/6, ASP. NET/CORE/MVC/Web Forms, Razor, Blazor, Entity Framework/Core, Web API, Roslyn. Azure: App Services, Function Apps, Logic Apps, Virtual Networks, Application gateways, Storage Accounts, Notification Hub, SignalR, Azure SQL, SQL Elastic pools, Data Factory, Event Hub, API Management, Service Bus, Azure Active Directory, Key Vault, Application Insights, Azure Cosmos DB, ARM Templates. Database: MS SQL, MySQL, PostgreSQL, Maria DB, Mongo DB, Cosmos DB, Azure Table Storage,  Redis DB, Azure Data Factory. Data Engineering: Power BI, Azure Data Factory, Azure Data Lake. CI/CD: Azure DevOps, Docker, Kubernetes, Github Actions, Jenkins. Cross-platform mobile development: React Native, Ionic. WEB: Angular, React, Node. js. Reenbit. Superior technical solution delivery to businesses on the verge of transformation.

Link The World To Digital. We are a leading software development company based in Ukraine, specializing in delivering tailored software solutions and top-notch IT consulting services globally. Our expert technical team, headquartered in Kyiv, consists of highly skilled web and mobile developers, inquisitive business analysts, talented UI/UX designers and QA engineers, and dedicated project managers. As a software outsourcing company and web development agency, we thrive on unlocking new opportunities for start-ups and establishment businesses that are looking to drive innovation and growth. Our main values are high-quality work, agile development methodologies, and excellent communication with clients at all stages of work. We assist our clients in achieving digital transformation by serving as a strategic partner, which results in the enhancement of their products, acceleration of service delivery, optimization of operational efficiency, and expansion into new markets. We are rapidly implementing AI and machine learning solutions into our clients' products and evolving as an AI development company. Our services include: Discovery stage (Business analysis) UX/UI design Mobile App Development Web App Development QA and testing DevOps IT consulting Our holistic approach ensures that we address every aspect of your project, from concept to deployment, to provide you with the most effective digital solutions. Proudly recognized as an Upwork Top Rated Agency, we've consistently proven our commitment to delivering excellence and innovation in every project we undertake.

CIGen is a global digital transformation partner focused on modernizing and scaling essential business applications with cloud-powered solutions across Europe and North America. ​Our software engineering expertise helps clients optimize their systems to support growth, streamline operations, reduce technical debt, and leverage data for more informed, impactful decision-making.  As a Gold Microsoft Partner, CIGen is well-regarded for its expertise in the following areas:​Azure cloud-native development​Application modernization​Cloud migration​AI/ML development​Data analytics​ CIGen. io has successfully delivered over 40+ projects, maintaining a 92% customer satisfaction rate. ​Our Azure-savvy cloud engineers and architects develop tailored software solutions using . NET Core, Python, Node. js, Angular, React, and . NET MAUI to meet specific business requirements. To enhance clients' systems with robust data analytics capabilities, we leverage Azure Data Factory, Azure Synapse, and Azure Databricks for efficient data integration, analysis, and processing. ​ The company’s industry expertise spans transportation and logistics, fintech, manufacturing, retail, and eCommerce making CIGen a trusted partner for businesses looking to leverage cloud technology to enhance operational efficiency and drive growth.

Vector Software is an experienced IT outsourcing company offering premium custom offshore development services. Established in 2014 the company has quickly grown into a prosperous software development company. We provide our customers with the best solutions in the field of customized software development. Having experienced and skilled outsourcing software developers with extensive technology expertise allows us to deliver software solutions of different complexities on time.

 Qream is a design transformation agency that crafts standout websites and brand identities for tech companies, helping them break through market noise with bold, strategic design. Our focus is on creating meaningful design that drives positive change across industries like Web3, Blockchain, MedTech, FinTech, EdTech, and more.

We are a team of product experts who can transform your vision into a thriving business with digital products that drive profits.  Quickly put together MVPs, test out hypotheses, check the market, help figure out the product direction, prioritize features, and in line with Lean principles, work on improving specific product metrics. Our people, processes, and technology are all fine-tuned to help our clients create thriving ventures. Our services:- Product Discovery- SaaS Application Development- Software Project Rescue- Agile Product Development Teams- Startup Consulting

Stfalcon has been developing custom web services and mobile apps for over 15 years. Since last year, we've managed to get 15 new projects; the number of employees at Stfalcon has increased by 20%. We operate a management system to the requirements of ISO 9001: 2015. Services we provide:Discovery Phase in 4-6 weeksUI/UX DesignDedicated teamsWeb/Mobile developmentCross-platform app developmentMVP for startups in 2-3 monthsDevOpsOur expertise includes:FinTech / Blockchain / Crypto app developmentTransportation and Logistics Software SolutionsIT solutions for automation in the medical fieldSince 2009, our projects have included Nova Post (the top private parcel delivery service in Ukraine), MeinfernBus (the most prominent German bus operator), CRM, ERP, TMS, and apps for taxi and booking. Contact us, and we will be happy to create something awesome for you!

PLANEKS specializes in software development and technology consulting, acting as a strategic advisor and tech partner for startups, scaleups, and SMEs globally. Our focus is on bridging expertise gaps, providing tailored technological solutions, and building successful teams that drive innovation and growth. At PLANEKS, we believe in the synergy of people and technology. Our open-minded approach, coupled with cutting-edge technology, empowers us to break boundaries, elevate businesses, and foster connections. Our collaborative approach is fundamentally about sharing ownership of all the work done. We prioritize initiative, ideas, and passion in our colleagues and partners, working together to drive success in the dynamic world of technology.

IdeaSoft is an EU-based custom software development company with more than 8 years of experience and 350+ delivered projects. We provide innovative solutions for early-stage startups and implement high-tech technologies into enterprise ecosystems.  IdeaSoft is an official partner and member of Sigma Software Group since 2021.  OUR AREAS OF EXPERTISE: Blockchain solutions & Web 3 DeFi & CeFiSmart Contract Development Fintech & Banking Web & Mobile Development (iOS, Android)QA Testing & Technical SupportUX/UI AI/ML IT Consulting & Product DesignWe have a proven track record of successful project launches, contributing to over 350 large-scale initiatives across corporate, enterprise, and government sectors.