Climate Capital
156 2nd St, San Francisco, CA, 94105, United States
Overview
Climate Capital is an investment firm that supports companies that directly or indirectly reduce global greenhouse gas emissions.
- Total investments
- 72
- Lead investments
- 1
- Investments · 12mo
- 7
- Active investors
- 4
Sector focus
- Finance
- Financial Services
- Venture Capital
Investment portfolio
- Ampaire
Participated · Series B · Aug 2026
Ampaire develops hybrid-electric retrofit systems that combine electric propulsion with conventional engines for existing commercial aircraft to lower fuel burn, reduce emissions and cut airline operating costs. The company has demonstrated its technology in flight and is pursuing product certification and scaled production. Ampaire plans to use the new Series B proceeds to accelerate commercialisation, build supply chains, expand manufacturing and scale operating capabilities. It has engaged with airlines and industry partners, including participation in an IAG-run accelerator where it explored hybrid-electric auxiliary power unit (APU) solutions. Investors in the latest round include IAGi Ventures, Alaska Airlines and DiamondStream Partners. The company positions its offerings as practical retrofit options for aircraft already in service.
- Thea Energy
Participated · Series B · May 2026
Thea Energy builds pixel-inspired rectangular magnets and software to generate and fine-tune stellarator magnetic fields, using many smaller planar coils to shape plasma confinement. The company says its approach lets software control arrays of regular magnets to create complex stellarator fields, and it has built dozens of full-scale magnet iterations in its Jersey City lab. Thea originally spun out of the Princeton Plasma Physics Laboratory and has iterated its design to include a set of larger magnets alongside more than 300 smaller coils that fine-tune the plasma. With $130 million in total private funding after the new Series B, Thea is scaling magnet manufacturing and plans to begin construction of its Eos demonstration reactor next year. The company aims to complete Eos by 2030 and bring a commercial device, Helios, online in 2034.
- Critical Loop
Participated · Series A · Apr 2026
Critical Loop builds an integrated hardware and software energy platform that combines battery storage, on-site generation, and Cygnus, its software-defined power controller, into deployable modular microgrids. Its core product line includes the CLB-5100, a scalable 1 MW integrated battery system that can connect to on-site generation, existing grid infrastructure, and distributed generation, and can be moved to locations with constrained grid capacity. The company highlights deployments and wins such as optimizing an 11 MW solar-plus-battery system at San Diego International Airport, keeping a manufacturing facility operational for eight months during a utility outage, enabling Terawatt Infrastructure to secure over 4 MW of incremental capacity across two EV charging sites, and deploying two hybrid microgrids at Mojave test facilities within days. Critical Loop has secured a supply agreement with LG Energy Solution Vertech for US-made batteries and has received support from California programs and regulatory recognition. The company is currently operating across California and plans to expand into other territories where grid constraints drive demand. To date, Critical Loop reports $49 million in total committed equity and debt funding.
- Terra AI
Participated · Seed · Apr 2026
Terra AI develops a patented AI platform that fuses geophysics, geochemistry, and drilling data to produce geologically realistic, probabilistic 3D models of the subsurface. Its technology generates millions of geological models and includes a geology reasoning agent to help operators create optimized exploration and drilling plans. The platform is positioned to compress the time and capital required to define deposits and reservoirs, with applications across copper, gold, rare earth elements, reservoirs, enhanced geothermal, and carbon storage. Terra AI reports early commercial customers and demonstrated modeling capabilities from early exploration through production. The company says its approach enables mapping assets and uncertainty in minutes and supports faster, lower-cost decision-making for resource development. Terra AI is headquartered in Palo Alto, California.
- Scalvy
Participated · Series A · Mar 2026
Scalvy develops the patented Power Neuron platform, a distributed power conversion and control architecture that places compact, software-coordinated modules with built-in energy storage at load points. The platform is designed to enable megawatt-scale power delivery with higher efficiency, smaller footprint, and grid interactivity without requiring customers to re-architect systems. Scalvy is initially targeting AI data centers, energy storage, and electric mobility markets and has completed technical validation with several blue-chip customers. With the recent Series A, the company has approximately $17 million in total capital raised and is expanding engineering, product, and operations teams. Short-term plans include certification, field testing, and near-term deployments of the Power Neuron platform.