Volo Earth Ventures

XGS provides Clean, Round-the-Clock Energy Everywhere, Forever through a proprietary solid-state geothermal system that utilizes thermally conductive materials to deliver affordable energy.

BattGenie develops advanced software technology for battery management, enabling safer, longer-lasting, and faster charging batteries through physics-informed digital twins and machine learning.

BlocPower is your partner in creating smarter, green, healthier buildings for all, focusing on transforming America's buildings into climate solutions through expert construction management and inclusive financing.

Cambium is a technology company that transforms wood waste into resources, focusing on sustainable supply chains. It employs software engineers and has a director for business development. Cambium's technology connects wood waste sourcing to end markets.

Banyan Infrastructure is the only end-to-end software platform that is purpose-built to simplify, scale, and streamline sustainable infrastructure finance.

Blue Frontier is revolutionizing air conditioning for commercial buildings with ultra-efficient technology that significantly reduces energy consumption and greenhouse gas emissions.

HEVO is a company focused on developing wireless charging technology for electric vehicles, aiming to eliminate reliance on fossil fuels and enhance the EV charging experience.

VECKTA is the world’s first end-to-end onsite energy deployment platform and advisory, helping enterprise businesses improve resilience, unlock savings, and decarbonize at scale.

Wattch is a SaaS company focused on providing monitoring intelligence and control solutions for the energy sector, partnering with independent power producers (IPPs), developers, and utilities.

We make safe, sustainable, and affordable zinc-ion batteries to power the clean energy revolution.

Pronoia focuses on developing quantum energy systems to create an era of energy abundance and build the energy infrastructure of tomorrow.

Skyven Technologies is an industrial decarbonization company that specializes in delivering emissions-free industrial steam through innovative energy efficiency technologies, primarily using their Skyven Arcturus steam-generating heat pump.

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.

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.

Voyager is a climate tech fund that focuses on decarbonization technologies cheaper and higher-performing than fossil alternatives. The fund explicitly avoids companies dependent on subsidies or carbon credits while targeting 500 million tonnes of CO₂e impact per fund. The partnership combines deep operator experience—having founded six climate companies worth nearly $2B and structured $3B+ in climate financing—with a focus on infrastructure-heavy sectors like critical minerals, geothermal, and modular baseload systems.

Energy Impact Partners invests from seed to pre-IPO, giving founders direct access to utility operator decision-makers and internal research mapping pain points and co-designing customer-backed theses for hardware-heavy grid and industrial decarbonization. Built around a coalition of large utilities and energy companies that actively collaborate to give portfolio companies direct access to decision-makers across dozens of operators, with an internal research team mapping utilities specific pain points and co-designing investment theses. The firm covers the full climate capital stack from seed to pre-IPO plus venture debt, deliberately focusing on hard, capital-intensive segments like grid resilience and industrial decarbonization.

Prelude Ventures manages capital exclusively for the climate-focused Simons family, creating a single-LP structure that demands strict venture returns from a 100% climate portfolio while applying a hard "no fossil fuels" rule that rejects any technology making oil, gas, or coal extraction cheaper or longer-lived. The firm combines deep technical operating experience with climate activism roots and has invested continuously through climate tech's "dark years" since 2009, positioning itself as a climate generalist comfortable with high capital intensity and long hardware timelines across the entire low-carbon economy.