Environment
Climate change is one of the defining challenges of our time. Its impacts—rising temperatures, extreme weather events, and natural disasters—are no longer distant warnings but present realities.
At Greenbridge, we believe in the power of policy, science, and innovation to drive meaningful change. Addressing this crisis requires bold ideas and coordinated global action to reduce carbon emissions while leveraging market-driven solutions to scale clean energy, reforestation, conservation, and electrification efforts.
Though our contributions are just one piece of the puzzle, we remain steadfast in supporting interventions that push the boundaries of what’s possible. By prioritizing science-backed and innovative solutions, we aim to catalyze change and contribute to a more sustainable and resilient future for our planet.
Above banner photo courtesy of the Sustainable Ocean Alliance
Grantees
Meet the incredible organizations that we are supporting. Each is creating a meaningful impact in its own way. We hope you will spend time learning more about the ones that speak to you.
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Megafire Action is a non-profit organization urgently building policy solutions to eliminate catastrophic fires. The modern wildfire crisis is overwhelming our systems, and the time to act is now. The good news is, this is a problem of our making, and we have the power to fix it. Megafire Action supports mechanisms that facilitate a return to healthy forests and ecosystems, promoting innovation that will assess risk across landscapes and jurisdictions in the United States, and better inform our efforts to reduce risks nationwide. It also involves reforming how agencies operate so they can effectively carry out their duties. Megafire Action is mobilizing education to create the enabling conditions for success, and eliminate the age of megafire.
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We chose to grant to MegaFire Action due to the urgent need to address the increasing frequency and intensity of megafires, which release devastating amounts of carbon into the atmosphere. We are particularly impressed with the founder, Matt, whose leadership and passion make him the ideal person to raise awareness and drive critical action at this pivotal moment.
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Rewiring America is the leading electrification non-profit, focused on electrifying our homes, businesses, and communities. They develop accessible, actionable data and tools, and build coalitions and partnerships to make going electric easier for households and communities. Rewiring America helps Americans save money, tackle nationwide emissions goals, improve health, and build the next generation of the clean energy workforce.
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We like the bold ambitions of Rewiring America, and they have just skyrocketed since the passing of the Inflation Reduction Act, which included millions for electrification initiatives. The team is experienced in industry, policy, and non-profits and brings together a unique set of skills and relationships to make a significant dent in this important aspect of reducing carbon emissions in the future.
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The Nature Conservancy is tackling the dual threats of accelerated climate change and unprecedented biodiversity loss. Science determines where they focus and equity guides how they achieve lasting results. Grounded by decades of local on-the-ground experience, they maximize their ability to affect change by bringing together real-world solutions, policy expertise, sustainable financing and collaborative partnerships.
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We chose to support The Nature Conservancy because of their commitment to pioneering innovative solutions for environmental challenges. Their robust organizational structure allows them to swiftly scale successful projects, making a lasting impact. We've chosen to support a pilot project focusing on oyster restoration in northern California — a perfect example of their ability to enhance ocean ecosystems through tested and scalable approaches.
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Their mission is to prevent the sixth mass extinction (and the first human-created one). They are applying technology, entrepreneurship, and open innovation to source, develop, and scale critical solutions to the underlying drivers of extinction.
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We couldn’t think of two founders better positioned to lead an organization that is working to inspire, cultivate, and mentor the next generation of innovators working on climate conservation. Alex and Paul have decades of experience working directly on conservation efforts, on launching prizes, and inspiring action. Now they are joining forces to help stave off the sixth mass extinction and we are proud to support these important efforts.
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Hinged on the values of community building, knowledge creation, and converting ideas into action through accessible funding, Homeworld Collective is the go-to source for talented scientists, technologists, entrepreneurs, and funders committed to maximizing the impact of climate biotechnology for planetary health.
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We chose to grant to Homeworld Collective because we appreciate their community-first approach, which fosters collaboration across researchers, entrepreneurs, and stakeholders, enabling the rapid advancement of groundbreaking ideas. By focusing on developing the social, intellectual, and funding infrastructure necessary for climate biotech to thrive, Homeworld Collective is paving the way for transformative technologies that can significantly impact planetary health. We can't wait to see what they create!
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Hourglass is a non-profit research organization that brings together interdisciplinary scientists to conduct targeted, integrated, and independent model, laboratory, and field research that rapidly de-risks the key uncertainties on how to safely and effectively scale mineral-based OAE techniques.
They publish all of their research, and in turn, provide the public with transparent and informed knowledge with which to make decisions about this class of climate solutions.
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We are thrilled to support Hourglass Climate, inspired by the innovative and creative thinking that Grace and her team bring to this urgent problem. Their commitment to tackling climate change through creative, responsible, and ethical innovations, paired with a vision for scalable impact, makes them a standout leader in this critical global effort.
Environment
-Focused
Investments
Here are some of the exciting firms driving innovation to address critical challenges in the fight against climate change.
Aligned invests in the people, companies, and real assets that are decarbonizing the global economy and its infrastructure. Aligned acquires distributed solar projects in the United States through its Aligned Solar Partners strategy. Aligned Solar Partners is a tax-efficient strategy, which can directly monetize the solar Investment Tax Credit (ITC) and other tax benefits. The strategy has a particular focus on distributed solar projects that sell electricity to rural customers.
Breakthrough Energy’s aim is to inspire the world to develop and scale the critical solutions we need to reach net-zero emissions—so everyone can enjoy affordable, abundant clean energy.
Invest in and actively support founders creating high-impact digital solutions in our fight against climate change, while delivering exceptional outcomes for our stakeholders.
Earthshot Ventures invests in entrepreneurs making a dent in climate change. Collectively, their team has invested in 150+ climate start-ups over the last twelve years and celebrated more than 25 exits.
The Ecosystem Integrity Fund (EIF) is an early growth stage investor in companies contributing to environmental sustainability. Their mission is to use private capital to accelerate the transition to sustainability, resulting in a healthier planet, healthier communities, and strong economic growth. EIF seeks to demonstrate that there is no trade-off between having a positive impact and achieving outstanding financial returns.
Lowercarbon Capital backs kickass companies that make real money slashing CO2 emissions, sucking carbon out of the sky, and buying us time to unf**k the planet.
Powerhouse Ventures backs entrepreneurs building the digital infrastructure for rapid decarbonization.
Propeller invests in transformational leaders at the earliest stages of ocean-climate innovation in massive markets.
Voyager invests in technology companies creating the future of mobility, energy, materials, food, the built environment, analytics, industrial systems, and carbon removal.
WaterEquity is an asset manager with an exclusive focus on an exclusive focus on ending the most urgent issue of our time – the global water and sanitation crisis.
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Underrepresented Emerging Managers