Best Series B Climate & Clean Energy Investors 2026

Invested at the seams of sector transition. S2G identifies opportunities at critical intersections of food & agriculture, oceans, and energy. The firm backs market-based solutions that deliver both economic returns and systems-level change across interconnected, commodity-driven, policy-sensitive sectors. S2G explicitly rejects siloed investing, instead seeking companies operating within Resource Efficiency, Mass Digitalization, Agile Supply Chains, and Conscious Customer themes.

The circular economy—where products are designed, manufactured, sold, refurbished, and recycled in closed loops—represents the future of sustainable economic value creation. We invest across R&D to commercial scale in foundational materials industries, providing not just capital but integrated support through our innovation center research and operating group execution.

Passion and vision matter more than pedigree. We seek founders with grit, audacity, and a spark of rebellion—regardless of background. We invest early, before success is inevitable, and support founders from 0-to-1 through Series A.

Financial services represents the largest venture opportunity with disproportionately small VC allocation. We invest in companies reinventing financial services with operator teams combining domain expertise and execution excellence.

Invest in sustainable food and beverage companies while supporting underrepresented and diverse entrepreneurs. We provide capital combined with operational expertise in distribution, operations, food safety, marketing, and logistics. We believe industrial agriculture is a major environmental threat and are committed to building a more sustainable and equitable food system.

Driving positive, lasting change in food and agriculture creates exceptional financial outcomes. Impact and return aren't trade-offs—they're intertwined. Both are essential. We invest in technologies and companies addressing human health, planetary well-being, responsible production, and climate solutions.

We back bold entrepreneurs who think big and are committed to becoming the next major tech players. We invest from pre-seed to series A with strong operational support, focusing on technology-driven solutions across AI, climate tech, fintech, SaaS, and impact-driven sectors.

We invest in breakthrough technologies that make the built world more efficient, resilient, and sustainable. By combining capital with access to 115+ real estate owner-operator LPs, we help portfolio companies scale rapidly across vast existing asset bases.

Building next-generation food and agriculture technology companies that commercialize solutions for sustainable production, equitable distribution, and healthy consumption. Partners with strategic investors to drive systemic impact in food systems.

Climate restoration through identification and scaling of 'n of 1' technology opportunities combining innovative tech, viable business models, and visionary leadership. Focus on achieving $1B+ valuations in <10 years with 'scale and speed' mentality.

Innovative energy technologies can transform global energy systems and drive decarbonization. We partner with technical founders who understand energy industry dynamics and have path to utility integration within 3-5 years.

We refuse to compromise between doing good and delivering strong financial and commercial returns. Portfolio companies gain access to TELUS's commercial networks, data-rich platforms, and deep expertise across agriculture, health, and connectivity giving them a unique edge as they scale.

The most enduring companies are created by founders willing to commercialize real science and scale real systems. We focus on hard tech at the intersection of computation and physical sciences—aerospace, biotech, energy, materials—where technical execution is the moat.

We invest in technology companies that reshape foundational industries – real estate, commerce, manufacturing, energy, logistics, and agriculture. Founded by entrepreneurs for entrepreneurs, we bring operational guidance, strategic insights from proprietary Field Studies research, and downstream capital access. We believe the startup journey is better together, providing hands-on support to exceptional founders building enduring companies.

Global venture capital firm investing in lifestyle consumer brands and technology companies that positively disrupt large and growing markets. Great investments require deep industry expertise, hands-on operational support, and access to strategic partners.

Innovation is essential to solving climate change while maintaining prosperity. Superior performance and affordability are prerequisites for global scale. We provide patient capital and technical expertise to help breakthrough climate technologies achieve commercial viability.

Partner with exceptional founders building technology companies with long-term growth potential capable of fundamentally shifting markets for the common good. Provide capital, operational expertise, board participation, and network access to support founder vision and company building.

Technology and capital solutions for the global energy transition. We partner with entrepreneurs to build and scale innovative companies that power a better energy future, supported by collaborations with utilities and industrial incumbents.

The $12 trillion built environment sector is ripe for digital transformation. Suffolk Technologies deploys capital, resources, and networks to help founders scale technologies in construction, architecture, engineering, real estate, and infrastructure. Uniquely positioned as the venture arm of Suffolk Construction, they provide operational test beds, jobsite access, and deep domain expertise that pure financial investors cannot.

Progress in food, agriculture, and human health lags other sectors due to structural constraints. We invest in deep technologies that remove these bottlenecks at scale—whether AI, biology, robotics, or materials science. We're not intimidated by threats to the status quo.

The biggest companies of the century will be built solving the world's most pressing problems. We champion ambitious founders using technology to reshape civilization around climate, health, and inclusive capitalism.

Back ambitious founders building disruptive early-stage technology companies. We provide not just capital but access to OMERS' multi-asset institutional platform. Our permanent pension backing gives us patient, long-duration capital unconstrained by traditional 10-year fund cycles.

Where breakthrough science turns into world-changing companies. We back scientists and engineers at the earliest stages—pre-formation and pre-product—at the intersection of AI, engineered biology, next-gen compute, and hard science. If it's too early for everyone else, it's probably right for us.

Invest in visionary founders from Latinx and diverse backgrounds building disruptive tech solutions. Capitalize on demographic trends and founder quality in systematically underestimated segments. Create alpha through early-mover advantage in overlooked founder networks.

Investing at the intersection of for-profit and for-good. Companies that make the world better AND deliver strong financial returns. The Villain Test ensures both impact and profit alignment.

Climate is the biggest challenge of our lifetime and the greatest business opportunity of the coming decades. We back visionaries accelerating climate innovation that will reshape our global economy for the betterment of people and planet. The most successful companies are born from a vision for a better future and the ability of that vision to create large, lasting positive impact. We invest in frontier technologies addressing climate across seven sectors: Built Environment, Carbon Management, Compute, Energy, Food & Agriculture, Manufacturing & Industrials, and Mobility. The best ideas come from everywhere—we operate where many venture firms can't or won't.

Big things start small. We invest at seed stage and see potential where others don't. We believe in your vision for your company's future, not as it exists today. We think in decades, not days, committing to walk the entire journey with founders to build iconic companies. We share Antipodean ingenuity with the world.

Back deeptech entrepreneurs with deep technical expertise, integrity-driven vision, and complex problem-solving capabilities working at intersections of space, autonomous mobility, advanced materials, quantum computing, and climate technology. Use aerospace systems lens to identify dual-use deep-science technologies with extraordinary technical leadership and first-principles engineering expertise capable of unlocking entirely new economies.

Global environmental challenges cannot be solved by established mega-corporations alone, but rather require breakthrough innovation from a diverse set of new companies. We combine venture capital with integrated storytelling and media to create culture-defining content around climate solutions and sustainable technology adoption.

Back extraordinary entrepreneurs throughout the company-building lifecycle from seed to IPO. Combine venture capital expertise with BCG management consulting to accelerate value creation. Support founders with capital, strategic guidance, and access to global networks.

We back founders on a mission to industrialize scientific and technological progress. Hardtech startups solve difficult technological problems using interdisciplinary mixes of technology and engineering. We provide patient, supportive capital and community to help founders navigate R&D cycles and build technically defensible products.

Women founders represent an overlooked asset class that delivers superior returns. Women-founded companies earn 26% more for investors, yet receive only 2% of venture funding. We invest exclusively in women-founded companies, providing capital, network access, and operational support to drive transformative change.

Tech-enabled businesses built for and by people in marginalized communities create new frameworks of ownership and opportunity. Traditional VCs miss billion-dollar markets in overlooked communities.

Scalable, defensible innovation at the intersection of software, hardware, and intelligence. Champion founders driving the next wave of technological innovation across Cloud, Devices, Frontier, and Silicon domains. Breakthrough technologies emerge from convergence of multiple domains.

Build category-defining technology businesses that deliver strong investment returns while addressing pressing business challenges. Leverage Fortune 500 parent (MassMutual) assets including real estate portfolios, renewable energy assets, and capital networks.

We invest in bold ideas transforming supply chain and logistics. With deep industry expertise and Prologis' global network, we partner with companies redefining the logistics landscape.

Deep technology and hard tech company investing at inflection points. Partner with technical founders building infrastructure-level solutions for global scale. Founded 2010 on belief that next generation of transformative companies require deep technical expertise, not just capital.

Maersk Growth invests in startups solving supply chain challenges through digitization, decentralization, and decarbonization. The fund combines traditional VC capital with strategic integration through venture clienting, where portfolio companies become commercial partners within Maersk's ecosystem.

The next two decades will see dramatic changes in mobility across ground, air, sea, and space. We invest in entrepreneurs building frontier technologies that make movement cleaner, faster, safer, and lower-cost, leveraging our extensive relationships with global companies.

We democratize venture capital by providing individual accredited investors with professional-grade access to elite venture opportunities. We leverage our massive 850,000+ community network and 11,000+ investors to create unique value for founders, sourcing and diligencing deals alongside top-tier VCs (a16z, Sequoia, Khosla) without leading rounds. Our network is our competitive advantage—it compounds value for all stakeholders.

Invest in deep science and disruptive technology companies that solve fundamental human problems—inequality, health, climate adaptation. We back founders with vision, instinct, and drive to scale impact.

Back founders building iconic companies that transcend boundaries. We invest directly in their growth to make them unbreakable. Founded on principle that luck isn't made, it's engineered. Founders are our customer, not LPs. We always vote shares with founders and provide 1% non-dilutive founder development capital alongside every first check.

Gaming-born technologies—GPUs, real-time rendering, virtual economies—now power AI, spatial computing, and blockchain. We invest in the foundational infrastructure enabling the convergence of digital and physical worlds.

Empower audacious founders who challenge norms and leverage technology to transform industries. We believe in first-time founders with scrappy outsider mentality and narrow niche focus. Silicon Valley expertise combined with deep emerging market knowledge across three continents.

Technology-based economic disruption of large markets through black swan investments. We seek founders with domain expertise and unreasonable conviction to build billion-dollar companies solving the world's largest problems.

Greatest opportunities come from serving unmet needs of the middle class in emerging markets. We bridge US and Latin American markets, providing institutional capital, intellectual capital flow, and geo arbitrage exit opportunities.

Mubadala partners with world-class companies and institutions to drive transformational growth across strategic sectors and geographies. We believe in long-term value creation through patient capital, operational expertise, and global partnerships aligned with Abu Dhabi's economic diversification.

Turn sci-fi into sci-fact by backing founders solving the most vexing puzzles facing humanity. We believe in counter-conventional solutions and contrarian positions in deep technology. We champion companies working at the intersection of breakthrough science and transformational technology, led by visionary founders who are equal parts mad scientist and business mastermind.

Emerson Collective invests in entrepreneurs and innovators driven by purpose, seeking consequential companies that deliver both generational impact and venture-scale returns. The firm targets sectors where biggest market opportunities meet meaningful impact levers: energy & environment, digital health, fintech, education, work, and media.

Champions exceptional founders to build lasting companies through experience, community, and capital. Generalist technology investor whose edge is network depth — Joe Montana's unmatched rolodex and 800+ portfolio company network enables introductions that most seed funds cannot provide.

We invest in mission-driven companies that dare to tackle impossible challenges, striving to transform industries and create lasting societal impact. We seek founders with audacity to dream big, resilience to persevere, and potential to build forever companies that shape human history.

Technology companies are becoming intertwined with the global economy more so than ever before. The most compelling founders build businesses through a broader world view. White Star Capital backs globally ambitious entrepreneurs at Series A, B, and Seed stages across North America, Europe, and Asia, helping them scale internationally through deep local presence on three continents.

Back the world's most ambitious and transformative entrepreneurs capable of building world-defining companies over 20+ years. Invest in founders with independent thought and first-principles vision to solve humanity's biggest problems across all sectors and geographies.

Invest in companies with compelling stories to tell. We couple capital deployment with media storytelling through the Not Boring newsletter, creating a unique flywheel that amplifies both company and fund narrative.

We invest in technical breakthroughs that overcome the world's greatest challenges. We partner at inception with technically brilliant dreamers who see past impossible to inevitable. We evaluate scientific opportunities through both commercial potential and human impact lenses.

Culture-Tech companies that disrupt and define how we live, work, play, and interact with the world every day. We invest in passionate founders building transformative products that change cultural behaviors.

Startups positioned as transformation partners with Fortune 500 corporates create the most impactful solutions. We believe the next generation of market leaders will emerge through collaborative innovation between startups and incumbent enterprises, supported by global expertise and capital.

Invest in early-stage tech companies addressing world's largest market opportunities and solving humanity's biggest challenges. Leverage global distributed team to source, evaluate, and support transformational founders.