Invest
Green Angel Syndicate is the UK’s largest angel syndicate of investors committed to fighting climate change. Our members of High Net-Worth Individuals use our specialist backgrounds and experience to select and invest in the best companies with the technologies and systems needed to fight climate change.
Why join the leading angel syndicate for climate tech investing?
With recognition as UKBAA’s Angel Group of the Year 2025 and co-investment from the British Business Bank, our syndicate provides members with access to vetted climate tech deals and a chance to play an active role.
Apply to Join Green Angel Syndicate
Meet GAS Members
James Manktelow
“As the most important angel syndicate in the UK climate space, Green Angel Syndicate provides me with a rich, highly qualified deal flow. Pitch events are frequent and very well managed, the team-based DD process is comprehensive and insightful, and the syndicate provides all of the professional support functions you would want–along with having an enjoyable social dimension. I have invested in 22 startups through Green Angel Syndicate and I am very pleased both with the performance of my portfolio and its environmental impact.”
Caroline Halliday
“I’ve been an active investor with Green Angel Syndicate, since 2017. Via the syndicate, I have met and worked with many like-minded impact investors, sharing and learning from our own backgrounds and experiences. We contribute to due diligence in teams, benefitting from our varying perspectives and connections. I welcome the open and encouraging environment where all questions are relevant and where we can all learn from each other.”
Recently closed deals
Anzen Walls
World's first climate wall with integrated solid-state heating, cooling, and heat recovery ventilation
Carbon Cell
Plastic-free, carbon-negative foam
measurable.energy
Eliminating wasted energy in buildings
Awards







