In 50 minutes, we walk through how we build and back climate tech companies from the ground up, where the 2026 opportunity sits, and exactly how the fund works.
Watch the full launch webinar:
Most pre-seed funds go looking for deals. We build them. Carbon13 is a climate tech venture builder: we recruit exceptional founders, form them into teams, give them their first catalytic investment, and then stay close for a further 12 months as they hit their milestones. Our SEIS funds have exclusive access to every company built through that programme.
Led by Sara Jones, Head of Marketing at Carbon13, with Tom Britton of fund partner SyndicateRoom, the session covered:
The 2026 climate tech read — why Europe overtook the US on deal value in Q1, and why we believe climate tech is currently underpriced.
What "climate tech" really means — told through six companies we've just backed, from food-waste chemistry to AI-driven recycling robotics.
The Carbon13 secret sauce — why we recruit the top 0.1% of founders, and how we build teams rather than chase deals.
The post-investment machine — the ecosystem of 400+ experts, corporate partners and follow-on investors working for every portfolio company.
The fund, in detail — size, minimums, fees, carry, and how the 2026/27 deployment lets you carry tax relief back a year.
107 | €15m | ~63% | ~65% |
Companies backed since 2021 | Invested across the portfolio | Female founders backed | Follow-on funding rate* |
Carbon13's talent-first model is built to find founders that the rest of the market overlooks. While roughly 90% of angel investors are male, ~63% of the founders we've backed are women — not a target, but a proxy for a sourcing engine that doesn't rely on warm introductions or being in the right room.
We don't go out looking for deals — we build them. That's how we build conviction at pre-seed that other investors can't.
The most mature Carbon13 portfolio companies are already moving. Cocoon — decarbonised cement from a steel byproduct — raised a $15m Series A in March 2026. Alumni include Kita (insurance for carbon removal, backed by Octopus Ventures), Ki Hydrogen, and MatNex (AI for materials discovery). Each fund's individual performance, including MOICs, is set out in the brochure.
*Follow-on funding rate across our first six to seven funds. Past performance is not a guide to future results.
SEIS — the Seed Enterprise Investment Scheme — is the UK government's way of incentivising investment into the high-risk startups that drive innovation. The tax reliefs are attractive if you're eligible, but they only ever cover part of your investment. The details on eligibility, performance and risk live in the fund brochure.
While the fund closes in October 2026, there is nothing stopping investors from committing now. Head to the fund page to read the full thesis, see each fund's performance and request the investment brochure.
Please note: our office hours are weekdays, 9.30am - 5.30pm.