Endgame Capital

Endgame Capital Research Investment Thesis Endgame Capital is a Brussels-based seed-stage climate tech fund targeting near-market technologies that compete on cost, speed, and performance — not subsidies or green premiums. Their thesis centers on "scale-ready technologies" with proven economics, low capital expenditure requirements, and clear paths to rapid deployment within a two-year commercialization window. The firm's core impact criterion: each portfolio company must demonstrate the potential to reduce a minimum of 50 million tons of CO₂e annually by 2050. Investments must be TRL5+ (validated solutions with early traction), commercially competitive without subsidies, and asset-light. Jinna Li frames it as: "The biggest opportunity for business in the next decade is turning the climate crisis into wealth creation." John Mairlot adds: "Venture is a trust business... we invest in technologies that are better, faster, cheaper than what exists today." Stage Focus Endgame Capital invests exclusively at Pre-Seed and Seed stages, targeting companies at the brink of commercialization — validated technology with early traction ready to scale. They do not invest in pure R&D or early lab-stage technology. Check Size Typical ticket size: €250,000 – €750,000 (approximately $275K–$825K USD). The fund reserves capacity for follow-on investments in top performers. This is a small, focused fund with highly selective deployment. Lead Tendency Endgame Capital typically leads or co-leads rounds, providing hands-on operational support in execution, growth, and fundraising. Their approach is active — not passive. They describe their value-add as assistance in customer acquisition, go-to-market strategy development, and follow-on fundraising preparation. Fund Status Fund I closed at €8M on October 31, 2025 (targeting €10M total). The firm began as a syndicate in 2023, deploying €2M across 7 startups before launching the formal fund. The fund is actively deploying capital. Notable co-investors across the portfolio include SOSV, Breakthrough Energy Ventures (Bill Gates), Hoxton Ventures, Third Sphere, SISTAFUND, Norrsken VC, and Ring Capital. Portfolio Highlights Endgame Capital has invested in 10 companies across energy, manufacturing, and materials sectors: Recupere Metals (France) — Converts scrap copper into electrical-grade wire using metallurgy + AI, achieving 18x lower CO2 emissions vs. traditional smelting. Co-investors: SISTAFUND, Norrsken VC, Ring Capital. Invested Jan 2026. Solve Chemistry (UK) — AI-driven software + proprietary hardware predicting outcomes for faster, cleaner chemistry. Invested Jan 2026. EverBloom (US) — Converts organic/protein waste into high-performance textile fibers via biomanufacturing. Invested Aug 2025. AntlerBio (Ireland) — Gene expression analysis tool (EpiHerd) optimizing livestock productivity via epigenetics. Invested Jun 2025. Ensol (France) — Solar, batteries, EV charging, heat pumps, and smart energy software (virtual power plant). Pre-fund investment. Elyos AI (UK) — Autonomous customer service AI agent for trades and field services. Pre-fund investment. SparkMeter (UK/US) — Low-cost metering for rural micro-grids serving 3.5 billion without reliable electricity. Pre-fund investment. Sention Technologies (UK) — Measurements, data, and AI for safer electrochemical production in battery manufacturing. Pre-fund investment. Batch.Works (UK) — Smart technology for sustainable, circular manufacturing. Pre-fund investment. Kubik (Ethiopia) — Converts hard-to-recycle plastic into interlocking low-carbon building material. Exited. Team Jinna Li, Managing Partner & Co-Founder: Founder turned VC with startup exits in sustainable packaging and hospitality. Fortune 500 product launch experience. Deep commercial scaling expertise. John Mairlot, Managing Partner & Co-Founder: Career climate tech investor with venture and private equity experience. Has deployed €30M+ in decarbonization startups and provided board service from seed to scale across the portfolio. Thomas Panton, Founding Associate: 2x climate tech founder with sustainability and activism experience. Brings deep operating perspective from founding companies in the climate space. Decision Process Partnership-driven (two co-GPs: Jinna Li and John Mairlot). The firm was originally operated as a husband-and-wife duo — founders and investors with complementary backgrounds in operating and investing. Decision-making is collaborative between the two GPs. Founder Preferences Endgame Capital backs deep-tech founders with defensible technical expertise and commercial ambition. They particularly value founders who combine rare domain knowledge (e.g., PhD-level technical expertise) with commercial scaling experience. Anti-pattern: pure research plays without clear commercialization path. Geographic Focus Europe and North America. Portfolio spans UK, France, Ireland, US, and Ethiopia (pre-fund). The team is based in Brussels and has a European primary focus with selective North American investments. Content Publishing The firm publishes a monthly "The Endgame" climate news roundup (started late 2025, active as of May 2026) and investment thesis essays ("Why We Invested in...") for each new portfolio company. They maintain an active content cadence building their brand in the climate tech ecosystem. Anti-Thesis Endgame explicitly avoids: technologies dependent on subsidies, shifts in consumer behavior, or green premiums. They also avoid early-stage R&D (pre-TRL5), high-capex hardware plays, and companies with more than a two-year path to commercialization.