Best Pre-Seed Climate & Clean Energy + Aerospace & Defense Investors 2026

Space-based technologies — GPS, GEOINT, and SatCom — are the invisible backbone of the global economy. Space Capital invests at the intersection of space technology and global markets, backing founders building the infrastructure, distribution platforms, and applications that will generate the next wave of trillion-dollar outcomes.

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.

Identifying culturally resonant, consumer-focused companies with differentiated products and founder teams that will capture global attention. We invest across technology, consumer behavior, entertainment, and culture—seeking to spot emerging trends before they reach mainstream awareness. We operate as a partnership combining rigorous deal selection with exceptional founder support, creative marketing, and deep understanding of consumer psychology.

Fuel the next industrial revolution by backing founders rebuilding how the world is powered and built — targeting energy independence, industrial resilience, and frontier industries. Uses AI, robotics, IoT, satellites, and blockchain to address climate change, resource depletion, and inequality, with a focus on companies where impact metrics are tightly coupled to business performance.

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 hard tech and hard sectors—companies building solutions to difficult, underexplored problems that others won't. Unlocking society's potential depends on founders willing to build what others won't. We're hyper curious, drawn to difficult and underexplored areas.

Investing in breakthrough deep technologies that address humanity's greatest challenges. We allocate ~80% to climate solutions (carbon-negative materials, renewable energy, climate adaptation) and ~20% to frontier tech (aerospace, robotics, advanced materials, biotech). We operate as a venture-and-philanthropy platform backed by the Fukutake family, blending profit-seeking with impact objectives.

Founders with military backgrounds and demonstrated grit combined with differentiated dual-use technology create exceptional venture opportunities. We focus on pre-seed and seed-stage companies solving meaningful problems that make the country and allies safer while having strong commercial applications.

The space economy represents the next frontier for transformative economic opportunity and meaningful impact. We back pioneering founders building the technologies and services that enable humanity's expansion into space while creating value on Earth. We apply financial discipline (Wall Street cash-flow and intrinsic-value approach) to identify sustainable, scalable space businesses.

Backing founders rebuilding how the world is powered and built. We invest in frontier-tech startups solving three existential challenges: climate change, resource depletion, and inequality. We look for scalable business models where impact metrics are directly tied to financial performance and community benefit.

We back determined builders working on hard problems in critical domains. Real innovation is non-obvious at first and often misunderstood. We support contrarian founders during frontier exploration when they need it most.

We back deeply technical founders solving hard problems with innovative technologies. Combining capital with go-to-market expertise and structured fellowships, we partner with founders who have authentic personal connections to their problems and bring novel technological approaches to market.

Human progress is defined by manipulating energy and atoms over spacetime. Software and open networks governed by tokens will transform the infrastructure economy. Crucible backs founders building digital infrastructure foundations at the intersection of energy, compute, and crypto.

We invest in teams and solutions that address multi-decade problems that humanity has no choice but to solve. Our focus is breakthrough science and technology applied to energy transition, life sciences, space, and next-generation computing.

We back 'sub-0.1% of the population' type exceptional founders building fundamental, infrastructure-level technologies in critical sectors (computing, defence, energy) reshaping our world. Community-driven approach provides proprietary deal flow and deep technical credibility. Focus on first cheques in pre-seed/seed with hands-on mentorship and network access.

Backing ruthlessly iterative founders at pre-consensus stages. We invest in founders before the broader market recognizes the opportunity, focusing on individuals who demonstrate exceptional ability to iterate quickly, navigate complex challenges, and maintain unwavering dedication to their vision.

Founders building the possibly impossible deserve capital plus marketing support. Great technology combined with exceptional storytelling and narrative development creates world-changing moonshots. We provide both the capital and the story-telling expertise to help founders achieve escape velocity.

Intelligence is coming into the physical world through AI and robotics applied to atoms rather than bits. We back capex-heavy, long-horizon bets in hard-to-abate decarbonization sectors and hardware-heavy industrial systems that many traditional early-stage funds avoid.

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.

Founders who intentionally pick hard problems outperform. The founders we back don't shrink in the face of a tough challenge, and it's this courage that is the root of outperformance. Picking hard problems attracts exceptional early talent and the most ambitious capital partners. We back technically ambitious founders at inception — before markets are well-defined or consensus has formed.

Deep tech hardware companies in aerospace, defense, energy, robotics, and industrial manufacturing represent the next generation of durable, high-return ventures. The fund backs founders at the earliest stage — sometimes pre-incorporation — who are building hardware solutions to the world's most important problems, leveraging government contracts and non-dilutive funding alongside venture capital.

Technology will define geopolitics. We invest in the Freedom Stack—foundational technologies critical to American national security and technological leadership. We partner with mission-driven founders building capabilities essential to American prosperity and strategic advantage.

Canadians have built over $1 trillion in enterprise value globally, yet were initially backed by US VC not Canadian investors. We back founders with Canadian roots—regardless of where they build—because exceptional talent from Canada represents a sustainable, quantifiable selection edge.

Invest in only two kinds of technologies: those that move humanity toward utopia, and those that hold the line against oblivion. Back n-of-1 visions for an era of Black Swans—unconventional companies solving civilization-scale problems that others dismiss as too early, too risky, or too misunderstood.

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.

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.

Permanent balance-sheet investor backing highly defensible, category-defining, mission-driven companies solving the world's biggest problems. Focus on founders transforming legacy industries with emphasis on diversity, equity, and inclusion.

Early-stage climate tech companies building the sustainable future. We invest in both software and hardware solutions addressing climate change through optimization, adaptation, and pioneering innovations. The next billion-dollar companies will be built with climate in mind.

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.

Investing in founders building critical software that addresses the decay of Western infrastructure, institutions, and industrial base. Ravelin backs software-defined transformation of aerospace, defense, manufacturing, energy, and industrial sectors.

Seed-stage deep technology with IP defensibility, deployed by multi-exit founder-operators willing to be hands-on operational partners. Focus on frontier sectors—defense, climate, space, biotech, fusion—where bold technical founders are building mission-critical capabilities.

We back founders using technology to solve the world's biggest problems. We believe capitalism can be a force for good when companies are built to be both massively profitable AND create positive impact. The best entrepreneurs are determined, passionate, smart, creative, and can inspire thousands of talented people.

Identify and invest in the world's top talent before they start a company. Build lifelong relationships through a proprietary university scout network at Stanford, MIT, Harvard, and other elite universities. Back exceptional founders within 1-3 years of graduation before they are widely recognized.

Back determined founders with uncommon insights solving the world's biggest problems through transformative deeptech. Focus on moonshots: multi-billion-dollar, step-change opportunities across Future Compute (quantum, alternative architectures), Defense & Dual-Use (aerospace, strategic tech), Smart Planet (robotics, climate, materials), and Humantech (AR/VR, interfaces). Frame investments through free-world resilience lens, prioritizing Western technological independence. Support founders through capital, operational guidance, technical expertise, and extensive networks.

We invest in people who will transform the physical world. Near frontier technology solving climate change, disease, armed conflict, poverty, and existential risks. Technical founders building capital-intensive, long-horizon companies.

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.

Backing transformative startups with exceptional defensibility and civilization-level impact potential. Focus on technical complexity, defensible innovation, and companies solving large-scale problems. Quality over volume approach with selective, thesis-driven investing.

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.

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.

Backs extraordinary pre-seed and seed technology founders, with hands-on technical, operational, finance, and leadership support delivered with a collaborative co-founder attitude.

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.

Back mission-driven founders addressing significant global challenges through leading-edge technology. Provide flexible and patient capital, leveraging our time, resources, and networks to support portfolio company success. Focus on founders with authentic social and environmental missions alongside commercial viability.

Brands and technologies reshaping culture. Align invests in early-stage consumer brands with strong brand equity and unit economics, and in frontier technologies (AI/robotics, clean energy, defense) transforming how people live and work. First-check conviction investor with meaningful follow-on capital and co-investment access.

Kindred backs visionary and relentless founders building the future using technology and science at the earliest stages, often helping form companies before they exist. With Kindred Ventures IV and Kindred Selector II, the firm is emphasizing the novel intelligence frontier: AGI-capable models and harnesses that extend human capabilities, new AI-native consumer and enterprise experiences, physical AI, compute, infrastructure, energy, science, outer space, and inner space.

Hard tech breakthroughs in the physical world will solve humanity's biggest challenges in climate, industrial automation, and human health. Founders with deep scientific expertise and engineering mindset can move at unparalleled speed when given access to fabrication infrastructure, global manufacturing partnerships, and hands-on mentorship.

Pax Technica: The next era of American global leadership will emerge from physical-world technological superiority — reinventing defense, energy, manufacturing, aerospace, and critical infrastructure. Backs mission-driven founders tackling the hardest industrial-scale problems.

Digital transformation of the enterprise in Japan. Backs ambitious startups with a tech component aiming to scale both domestically and internationally. Fund VII focuses on AI/deep tech, energy transition, inbound tourism, and defense. Founded by recovering entrepreneurs who believe operator experience makes better investors.

First check for deeptech founders building across all deeptech sectors (chips, energy, robotics, medtech, materials science, aerospace). We provide more than capital—we become your growth team, design your website, and offer hands-on go-to-market support backed by deep expertise in startup scaling and commercialization.

We back entrepreneurs using computational approaches (AI, simulation) to solve trillion-dollar problems in climate, health, industrial transformation, and national security. Deep tech requires patient capital and scientific rigor.

Support unconventional, bold founder-led companies solving real problems at the earliest stages. We provide capital, operational mentorship, and resources to pre-revenue and pre-seed startups that traditional investors overlook.

Transformative national security solutions emerge from early-stage private-sector startups developing frontier technologies. IQT identifies, evaluates, and leverages innovations to accelerate government adoption while enhancing commercial success. As of May 2026, IQT is emphasizing mission investing through fewer larger bets in autonomy, contested logistics, critical infrastructure, and technologies that can move to mission use quickly.

Back wild hearts with the wildest ideas from the very beginning. Invest in companies, not rounds — following exceptional founders from pre-seed through all subsequent stages. Focused on ANZ founders building globally ambitious companies across any sector.

Backs globally ambitious technology companies from pre-seed and seed through selected growth rounds using specialist EMEA sector teams and a platform model for capital, customers, talent, follow-on investors, and operational support.

Be the first check in for founders building America's next era of critical technologies. Invest in audacious founders across Defense, Aerospace, Energy, AI, Manufacturing, Cybersecurity, and Health+Bio solving problems critical to national security and American technological leadership. Provide capital ($250K-$1M), unmatched government access, mentor network, and go-to-market acceleration.

Celesta invests in brilliance at the forefront of science and engineering, targeting companies that enable mass adoption of emerging tech, radically improve health outcomes, and transform large industries. Focus on platforms enabling emerging tech adoption, bioconvergence innovations (high-tech + biotech), and technologies disrupting legacy industries with deep tech.

Soma invests in technical founders building innovative companies across all sectors. We believe in building deep friendships day 1 with brilliant superhumans pushing humanity forward. Our founder-first approach emphasizes non-dilutive capital, founder autonomy, and access to Fortune 500 networks for customer development.

Back the quirky underdog pursuing seemingly impossible ideas. Frontier tech (aerospace, biotech, climate, robotics, crypto, AI, VR/AR) will create the next generation of legendary companies. Technical founders with deep domain expertise can solve the hardest problems in physics, chemistry, and computing.

Belgium-first network-driven VC backing the most ambitious Belgian-founded tech startups at Pre-Seed and Seed. Pools capital, expertise, and network from 120+ founders, operators, and investors to help early-stage Belgian companies scale globally.

We back the companies of tomorrow before it's obvious. We combine early-stage European investing with a permanent San Francisco presence to help founders build category-defining global companies. We invest in ambitious technical founders who deeply understand industry transformation.

We back dropouts, renegade students, and deep-tech scientists working on ideas that would appear in science fiction. We exist to prove that great founders don't need university degrees and are found in the oddest places. We invest at inception stage (R&D through Seed), providing capital, mentorship, community access, and operational support. People-first approach: it's more about the who than the what.

Digital financial services in Africa should augment existing informal and agent-based networks rather than replace them ("cyborgs over androids"). We use proprietary research on frontier markets to guide investments and provide portfolio companies with strategic insights on market opportunity.

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.

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.

Back exceptional Kiwi founders building globally transformative companies, from day one to IPO. New Zealand founders represent a significantly undervalued asset class, and Icehouse provides capital plus an ecosystem of 3,000+ investors and deep operational support.

We invest in paradigm shifters—truly disruptive technologies that change our perspective of the world. We believe in missionary founders committed to their vision, and we focus on business-team-idea-timing fit, not just product-market fit. We target transformative companies across defense, climate, fintech, legal tech, and emerging domains.

Extraordinary founders execute faster when isolated from distractions and provided intensive on-site support. We seek junkyard dogs with high agency, non-obvious vision, delusional optimism, and execution discipline. Category matters far less than founder quality.

Female founders build exceptional companies that outperform their male peers. We invest in category-defining female leaders with strong points of view who are reshaping their markets, backed by community and supported by a visible ecosystem.

Deep Checks matches deeptech founders worldwide with venture capital investors who specialize in their specific technology niches. We operate as a specialized deal-flow curation platform connecting founders with 50+ deeptech VCs, angels, and founder-investors. Our mission is to democratize access to expert capital for scientific and hardware founders who are otherwise hard to reach.

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.

Amplify founder impact through capital paired with deep expertise in government market access, federal R&D funding capture, and government contracting strategy. Focus on dual-use technologies addressing national security, defense, energy, and infrastructure challenges.

Breakthrough innovations emerge from engineers tackling frontier problems. We provide fast capital, domain expertise across AI/robotics/space/biotech, and deeptech credibility to pre-seed teams.

The best ideas don't come from a screen—they're born offline in the real world. We invest in founders who build differently, prioritizing how they build as much as what they build. We believe original thinking, human-centric innovation, and founder wellness are prerequisites for building great companies.

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.

Lightbank invests in disruptive technology companies led by great founders in dynamic markets with world-class products. The firm believes exceptional founders and opportunities exist everywhere, especially in overlooked geographies like the Midwest. We partner with early-stage founders and provide operator-heavy support beyond capital.

Backing exceptional, mission-driven entrepreneurs creating companies with Massively Transformative Purpose (MTP) that impact billions of people. We invest across the full innovation lifecycle, from early-stage frontier technology through scale to liquidity. We love companies and individuals that are different, fishing where others aren't, seeking opportunities where exceptional visionary entrepreneurs see novel paths to greatness.

Invest in bold, visionary founders building transformational businesses long before the world believes in them. We back founders solving impossible-seeming problems across frontier sectors: AI/robotics, crypto, biotech, aerospace, and unconventional ideas.

Back European technical founders building globally ambitious deeptech and critical technology companies at pre-seed and seed, with concentrated first-check conviction and Paris/San Francisco/Berlin support.

Entrepreneurs who work constructively with government to harness its unique strengths—scale, credibility, regulatory power, data, and funding—enjoy asymmetric advantages. 24% of venture-backed unicorns used government support. We partner with founders to unlock government as a growth lever.

Entrepreneurs, not VCs, build great companies. We invest early in great & passionate entrepreneurs and serve as long-term partners. Available 24/7 to help founders with mentorship, product-market fit, fundraising, business development, customer acquisition, talent sourcing, and strategic partnerships.

Sand Hill Angels backs seed-stage, high-tech companies with large and growing markets, well-defined problems, disruptive solutions, defensible technology, and strong teams with demonstrated ability to execute. The group leverages 145+ experienced angels to provide capital, mentorship, and network access across the Silicon Valley ecosystem.

The smartest place you can invest your capital is in women. We bet on early-stage female-founded and female-led companies creating groundbreaking consumer and B2B software technologies that solve meaningful problems in families, healthcare, childcare, education, climate, and sustainability.

Exceptional entrepreneurs building critical national security, space, and industrial infrastructure at day zero deserve capital and strategic support from founders who've scaled before. We provide capital, industry network introductions, capital connections to Series A leads, and ecosystem access.

The primary constraint for seed-stage, science-based entrepreneurs is access to experienced business judgment. CDL provides objective-based mentoring from accomplished entrepreneurs, angels, and scientists to help founders prioritize tasks and de-risk their businesses.

We are a stage-agnostic venture capital firm investing in exceptional founders building the companies that shape our world.

Equity of access and representation in venture capital delivers positive returns. Diverse and underrepresented (including LGBTQ+) leaders of high-growth companies deserve capital access. When these founders succeed, they influence ecosystems and open doors for historically excluded groups.

MaC backs visionary founders building category-defining companies with deep understanding of cultural shifts, technological advancements, and emerging market trends. Founders must demonstrate authentic insight into why their problem needs solving now, combined with ability to see how the world is changing. Particular focus on founders paying attention to shifts others might miss.

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.

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 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.

Operator-led fund investing in ambitious founders building transformative AI applications. We partner with technical founders who understand AI/ML deeply and are solving real customer problems with capital efficiency. Great product is always the best marketing.