Voyager

Addis Energy is developing a new subsurface resource to produce ammonia through a novel process that leverages the earth's chemical and thermal potential, aiming to replace traditional energy-intensive ammonia production methods.

Aepnus transforms industrial waste streams into critical chemicals using groundbreaking electrochemical technology, helping industries cut costs, eliminate waste, and strengthen supply chains.

Allie AI builds AI-powered software solutions aimed at increasing productivity, reducing downtime, and democratizing knowledge expertise for factories, particularly in the manufacturing sector.

Alta Technologies uses engineered proteins to separate rare earth elements and strategic metals from complex material streams with unmatched selectivity.

Andes incorporates beneficial microorganisms in agricultural fields to remove CO₂ from the atmosphere, enhancing soil carbon sequestration.

ANNEA is a modular AI-based platform for predictive maintenance and asset performance optimisation, designed to increase the operational efficiency and reliability of renewable energy assets such as wind turbines, solar farms, and hydroelectric plants.

Anthro Energy is a Silicon Valley based company producing advanced electrolytes to break battery barriers. Their technology unlocks the full potential of next-gen batteries with improved energy density, safety, and stability.

Arbor Energy’s advanced power systems deliver clean, reliable baseload electricity with zero operating emissions, utilizing supercritical CO₂ turbines and oxy-combustion technology.

Astro Mechanica is building the next generation of flight with engines, airframes, and flight systems designed for the new age of aerospace, including the world’s first jet engine engineered for efficiency across subsonic and supersonic speeds.

Atlas Materials is focused on producing high purity, zero waste Magnesium and Nickel products for industrial, aerospace, battery, and specialty applications using a unique hydrometallurgical process.

Leeta Materials specializes in advanced high-performance industrial materials, including ceramics and coatings, tailored for various industries such as mining, aerospace, and defense.

Early-stage climate investor using a 12,000+ startup proprietary database and hedge-fund-style quantitative screening instead of relationship sourcing, often taking board seats (96%) and offering Rocky Mountain Institute sector expertise.

A $1+ billion climate fund backed by ultra-high-net-worth individuals like Bill Gates, Jeff Bezos, and Jack Ma, with an unusually long 20-year investment horizon and a requirement that portfolio companies can avoid at least 500 million tons of CO2 emissions annually by 2050. The fund combines deep technical expertise from former ARPA-E leaders and scientists with access to a broader Breakthrough Energy ecosystem of policy, advocacy, and deployment programs, making it a gold standard validator for technically ambitious climate hardware companies.

Clean Energy Ventures funds disruptive, capital-light technologies and business model innovations that reshape how we produce and consume energy. Since 2005, the leadership team has invested in 40+ climate tech startups with the potential to substantially reduce greenhouse gas emissions by 2050. The firm requires every investment to demonstrate 2.5 gigatons of CO2 mitigation potential using their proprietary calculator. More than 60% of the investment team holds advanced science or engineering degrees to provide hands-on technical support. Their track record includes only ~15% write-offs in hardware-focused cleantech, unusually low for a sector where 90%+ of post-2007 funded companies failed to return capital.

Early-stage, first-in investor focused exclusively on materials science, spinning university tech into startups and acting as hands-on initial operators to build companies from the lab bench up (approximately 30 portfolio companies).

Miami-based VC focused on fusion, geothermal, advanced materials and climate tech, advising founders on capital-stacking deep-tech companies from lab to scale.