Green Angel Syndicate

Green Angel Syndicate is not your average angel investment group. Founded in 2013 by Simon Acland and Nick Lyth, and now under the leadership of CEO Cam Ross, GAS is based in London and has carved out a unique space as the UK's largest angel network focused solely on combating climate change.

In a crowded investment landscape, GAS’s distinctive edge lies in its single-minded pursuit of businesses that measurably reduce greenhouse gas emissions or significantly improve environmental sustainability. This approach isn't just philosophical—it shapes everything they do, from the rigorous selection process to the ongoing support they provide post-investment. For founders tackling climate problems, GAS offers a receptive audience deeply aligned with their mission, yet founders must come prepared. Each startup must clearly demonstrate quantifiable environmental impact—such as potential carbon reductions or resource efficiency gains—combined with commercial viability and scalability. “We look for companies that can make a sizable impact on carbon reduction, when they are operating at scale,” explains CEO Cam Ross in an interview with Seed Legals.

A partnership with GAS is more than financial. The group boasts an expansive community of over 300 expert members from diverse industries such as renewable energy, transport, agriculture, and sustainable materials. This expertise becomes accessible to the startups GAS funds, turning investment rounds into gateways for mentorship, strategic connections, and invaluable industry-specific insights. Portfolio founders consistently highlight this network as critical to their growth. Juan Pablo Cerda, CEO of renewable energy marketplace Zeigo, credits GAS’s network as crucial and mentions the “support from a strong network of energy and technology investors which was critical to our success.”

With ticket sizes typically ranging from £200,000 to £1,500,000 per initial round, GAS frequently leads investments but remains open to co-investing alongside complementary funds and angels. Startups approaching GAS should expect thorough, VC-style due diligence, requiring clear quantification of environmental impacts alongside solid business metrics and market opportunity analysis. GAS has invested successfully across a range of high-profile companies, including NatureMetrics (environmental DNA monitoring), Rovco (subsea surveying for offshore wind), and Better Origin, an innovative agritech startup backed subsequently by prominent VCs such as Balderton Capital. Notable exits, like renewable energy procurement platform Zeigo, acquired by Schneider Electric, underscore GAS’s track record of spotting future market leaders.

Founders considering GAS should anticipate active, ongoing engagement. Angel investors from GAS often take board or advisory roles, providing mentoring, industry contacts, and strategic insights. Their style of investment is hands-on and collaborative, yet supportive rather than controlling—often described positively by portfolio companies as akin to gaining a new network of passionate team members.

For founders of early-stage ventures determined to merge significant environmental impact with commercial success, Green Angel Syndicate represents a uniquely aligned partner, capable of offering capital, expertise, credibility, and a genuinely mission-aligned relationship focused on solving the most pressing global climate challenges.