All Aboard closes $133M debut fund to scale climate tech
What's the deal? All Aboard CoalitionDealroom has a profile for this one. Try Dealroom →, an investment collaborative co-founded by a former TED curator, has closed its inaugural fund at roughly $133 million. That is less than half its original $300 million target.
What's the endgame? The London-launched coalition funds climate tech companies building their first commercial plants — a stage where many promising technologies stall. These companies often need more capital than venture firms typically provide, yet are seen as too risky for banks or growth investors.
How does it work? All AboardDealroom has a profile for this one. Try Dealroom → co-invests alongside its venture partners, matching their checks when at least three members join a deal. In January 2026, it made its first investment in Zanskar, a Salt Lake City geothermal developer, joining a $115 million Series C. In May 2026, it backed green cement startup Terra CO2.
Why now? The launch was in part a response to clean tech headwinds under the Trump administration, as federal funding fell. The coalition now includes more than a dozen leading climate-tech investors, among them Breakthrough Energy VenturesDealroom has a profile for this one. Try Dealroom →, GenZeroDealroom has a profile for this one. Try Dealroom →, and Energy Impact PartnersDealroom has a profile for this one. Try Dealroom →.
Who's in? Activate CapitalDealroom has a profile for this one. Try Dealroom →, G2 Venture PartnersDealroom has a profile for this one. Try Dealroom →, and LightrockDealroom has a profile for this one. Try Dealroom → are among the newest members, alongside a large UK family office. A co-founder, who also founded investment firm Partners CapitalDealroom has a profile for this one. Try Dealroom →, says the coalition is still growing.
What's next? All Aboard is in full deployment mode, closing its third deal in 2026. The coalition says its growing network will help it identify exceptional companies and secure the financing they need to reach commercial scale.
The signal: A debut fund landing well short of target underscores how tough the fundraising climate remains for climate tech. Yet the coalition's model — pooling capital to fill the gap between venture and commercial financing — offers a template for keeping first-of-a-kind projects moving as public money retreats.
Read more: ImpactAlpha
Image credit: martin_vmorris
