Climate & Clean Energy Investors

Connecticut

The Angel Investor Forum (AIF) is a Connecticut-based angel group investing in early-stage companies with solid business models and growth potential. AIF members invest together, providing capital...

Bethlehem, PA

Regional economic development investor providing capital, business expertise and incubator support to early-stage technology companies and manufacturers across a 21-county territory in Northeastern...

California

Investing in hard technology — chemistry and materials innovations, medical devices, life sciences, sustainability and energy. CAN Fund I invests up to $150K in early-stage startups; geography...

Boston, MA

CEVG provides seed capital and hands-on management expertise to early-stage climate tech and clean energy startups. They focus on companies that can materially mitigate GHGs, are close to...

New Orleans, LA

Flamingo Funders is a collective of accredited women angel investors in the New Orleans five‑parish area that makes individual early-stage investments and mentors women-owned startups seeking first...

Seattle, Washington

Keiretsu Forum Northwest & Rockies is an active angel network and syndication partner that sources and vets high-quality early-stage deal flow across emerging technologies, life sciences, healthcare,...

Greenwich, CT

Provide equity capital to early and growth-stage companies across biotech, digital health, cleantech, fintech, edtech, agtech, emerging technologies and consumer products. Host by-invitation investor...

Ann Arbor, MI

MAF is a Michigan-focused, professionally managed angel fund (Ann Arbor SPARK–backed) investing in capital-efficient seed and early-stage companies in IT, cleantech, advanced manufacturing, and life...

Philadelphia, PA

Pre-seed, hardware-focused investor and product development center that provides seed capital (initial $57,500), hands-on engineering/product development support, business coaching, access to...

New York, NY

Plum Alley Investments is a venture capital firm focused on breakthrough technology companies making the world better for humans, industry and the planet. The firm seeks to invest in early-stage...

Newark, NJ

Provide seed-stage capital, mentorship, and ecosystem support to urban entrepreneurs—primarily Black and Latinx founders—with ties to New Jersey and other urban areas to increase inclusive...

Chevy Chase, MD

NextGen Venture Partners is a venture capital firm based in Chevy Chase, Maryland. The firm seeks to invest in early-to-growth-stage companies. The firm seeks to invest in commercial services, health...

Buffalo, NY

Launch NY is a nonprofit venture development organization in Upstate New York providing pro bono mentoring and access to risk capital for high-growth startups. Through its InvestLocal Financing...

Redwood City, CA

Working Capital Fund invests in early and growth-stage technology companies that create responsible, transparent, and equitable global supply chains. Focus areas include AI/ML, computer vision,...

Santa Monica, CA

Founded in 1996, Upfront Ventures is a venture capital investment firm based in Santa Monica, California. The firm prefers to invest in companies operating in the commercial services, software,...

San Mateo, CA

Wildcat Venture Partners invests in B2B and B2B2C startups leveraging Artificial Intelligence and Machine Learning to disrupt industrial sectors, with a focus on healthcare and the energy transition....

Saint Louis, MO

proChain Ventures is a specialist venture capital firm investing in pre-seed and seed (pre-Series A) startups transforming global supply chains. Focus on supply-chain-related hard tech and deep tech...

Miami, FL

Starlight backs founders tackling long-term, must-solve challenges that reconcile economic growth with human and planetary health. We invest early in pre-seed and seed teams applying physics,...

Lehi, UT

Invests in entrepreneurs reshaping mobility and micro-mobility through disruptive technology; focuses on accelerating electrification and transportation innovation and also backs companies using...

Saint Louis, MO

Capital Innovators runs top-ranked accelerator programs and manages seed and Series A venture funds focused on technology, consumer products, energy innovations and verticalized corporate accelerator...

Wenatchee, WA

Invest in innovative Washington State companies through the annual Flywheel Investment Conference. A diverse group of angel investors form a conference fund each year to select finalists and invest...

New York, NY

Founded in 2020, Binocular is a venture capital firm based in Vienna, Austria. The firm seeks to invest in business-to-business, software-as-a-service, and technology sectors.

San Francisco, CA

Early-stage, AI-first venture firm investing in Applied AI across Future of Work/Productivity, Mobility, Health, Financial Infrastructure, Digital Infrastructure, and Climate & Energy. Often leads...

CEVG provides seed capital and management expertise to early-stage climate tech start-ups, focusing on companies with the potential to significantly mitigate climate change through the reduction of...

New York, NY

Invest in seed and early A founder-led companies across a broad range of industries, with a bias toward consumer-focused teams leveraging consumer intelligence and operational excellence. Typical...

Northfield, IL

MK Capital is an early and growth-stage venture capital firm with $500 million+ in assets under management. MK Capital primarily invests in disruptive business-to-business software and technology...

Palo Alto, CA

Single-keyword thesis: 'early' — focus on early-stage, seed investing (often YC startups). Data-driven, lightning-fast execution; founder/operator led.

Hanover, NH

Supports Dartmouth students, faculty, alumni, and staff to transform ideas into ventures through hands-on learning, mentorship, events, accelerators, grants, and networking. Runs accelerator programs...

Culver City, CA

Navitas Capital focuses on transformative technology and innovation in the built world (real estate and construction). The firm invests in startups leveraging AI, digitization, sustainability, and...

Fairfield, Connecticut

AIF pools member capital and expertise to invest in high-potential early-stage companies (primarily CT and US-based), providing disciplined due diligence, education, and hands-on support. The group...

Bethlehem, PA

State-backed seed investor focused on early-stage technology companies and innovation-driven manufacturers in Northeastern Pennsylvania. Provides capital, mentorship, and incubation through Ben...

New York, NY

Parkway Venture Capital (founded 2019, New York) invests in early to growth-stage deep tech with defensible IP across AI/ML, ubiquitous data, 3D simulation, quantum tech, complex engineering, climate...

Madison, WI

gener8tor operates accelerator programs (12-week investment-for-equity and free cohort programs) investing approximately $100K into high-growth startups and running sector-specific accelerators...

Likes pedigree; focuses on energy/software/nuclear; prefers to fill rounds rather than lead.

Silicon Valley, California

Nucleation Capital invests in next-generation nuclear (fission, fusion, LENR, radioisotope), carbon management (capture, utilization, synthetic fuels, carbon-based materials), and grid enhancement...

Investor, VC, Strong Pre-Seed, Often First Money In, Tireless networker, Climate health Care And Economic Drivers;

NJ

Member-led angel group investing primarily in early-stage technology companies in the Mid-Atlantic (with ~1/3 of investments in New Jersey). Areas of interest include SaaS B2B, HealthTech, Medical...

Shreveport, LA

The New Louisiana Angel Fund (NLAF) is an angel investment fund managed by BRF, focused on investing in high-growth startups and early-stage companies in North Louisiana. NLAF supports economic...

New York, NY

Membership-based angel group investing in early-stage companies across Life Sciences, SaaS, FinTech, Consumer, AI, and Cleantech. Typical member investments range from $100K to $1.5M; provides...

Austin, TX

SWAN Impact Network unites, educates, and empowers founders and impact investors to back early-stage companies that deliver measurable social or environmental impact alongside financial returns....

Cincinnati, OH

Investing in underrepresented founders and funds that leverage modest resources to produce outsized returns. Focus sectors: CPG, e-commerce, sustainability, artificial intelligence, and health tech....

Menlo Park, CA

Capital-efficient investing in enterprise B2B technology. Initial checks $250k-$1M into early-stage companies with proof of first revenue; focus on Silicon Valley with selective Hawaii and other...

Atherton, CA

Founded in 2010, PivotNorth Capital is a venture capital firm based in Atherton, California. The firm prefers to invest in wages, housing, banking, transportation, food, internet access, education,...

San Mateo, CA

Early-stage VC focused on B2B startups in the US and Japan, primarily Seed and Series A. Investment focus spans Enterprise SaaS/Cloud, Fintech, Deeptech/Robotics, Sustainability/Cleantech, and select...

Honolulu, HI

Blue Startups is a Honolulu-based, Top 20 US accelerator focused on scalable technology companies with emphasis on software/gaming, travel technology, and sustainability. The program invests up to...

Menlo Park, CA

Venture Funds and Operating System for Independent VC Professionals. Join as a Partner; apply to raise or recommend startups. Focus on companies on the market with revenue or lead investment from...

San Diego, CA

Mid-stage, community-oriented VC focused on propelling technology startups globally. Preference for software-enabled, capital-efficient B2B models (open to select B2C and HaaS). Typical first check...

Burlingame, CA

We invest in a small number of select founders and actively mentor them to achieve success. With 30+ years of experience founding and scaling startups, our team provides hands-on operational support,...

Ithaca, NY

A movement-driven venture capital firm investing with a gender and diversity lens. We focus on seed-stage, women and diverse-led tech companies (climate, education, health) and run national...

Lisboa, Lisbon

Invests with a focus on the transition to a sustainable economy. Targets innovative, sustainability-oriented Portuguese companies in areas such as renewable energy and resources, smart...

Palm Beach, FL

We back companies at the intersection of data, deep tech, and frontier tech that navigate government and commercial use-cases—focusing on defense tech, national security, and dual-use...

Miami Beach, FL

High-conviction secondary and late-stage investments focused on defense, energy, security, and AI with selected European opportunities; investing in high-growth Series B+ and late-stage scaleups and...

New York, NY

Acronym focuses on late-seed and early-Series A investments in B2B SaaS and omnichannel consumer brands. Sweet spot: companies raising $2M-$6M. Invests where it can help drive revenue; prefers...

Philadelphia, PA

NextFab Ventures is a pre-seed stage hardware-focused investor and product development center. We provide hard-tech startups with seed capital, hands-on technical product development support,...

Mason City, Iowa

Countryside Angels is a collaborative group of individual angel investors primarily from Iowa and Southeast Minnesota, focused on providing financial returns to its accredited members while assisting...

Menlo Park, CA

Provides debt and equity financing to venture capital-backed companies globally across company lifespans; focuses on structuring flexible transactions and partnering with VCs and entrepreneurs.

New York, NY

Plum Alley Ventures Company invests in early-stage frontier technology and medical breakthrough companies (with emphasis on gender-diverse founding teams and women founders), focusing on frontier...

Zurich

ABB Ltd (ABB), is engaged in power and automation technologies. The Company provides a range of products, systems, solutions and services. Its power businesses focus on power transmission,...

K2X Capital invests in early-stage technology and life sciences companies worldwide using a double-vetting process by experienced angel investors and advisors. It focuses on Seed and Series A (and...

Seattle, Washington

Active, collaborative angel network focused on sourcing and syndicating high-quality early-stage opportunities across emerging technology, life sciences/healthcare, biotech, proptech and clean...

Naples, FL

Member-managed angel funds investing $50k–$500k in early-stage companies (pre-seed/seed) with active mentorship, collaborative due diligence and a preference for US/Florida-based ventures across...

College Station, TX

Essential angel intel in 5 min. Your weekly shortcut to vetted deals and expert takes.

Bozeman, MT

Investing in mission-driven founders building companies in AI/Data, Climate, Deep Tech, B2B Software, FinTech, Defense Tech and Cybersecurity; focus on Seed to Series A with active partnership and...

New York

Looking Glass Capital invests in mission-driven founders at the earliest stages, making high-conviction investments in non-consensus opportunities. They focus on software and software-driven...

Angel network focused on early-stage hardtech startups in chemistry and materials, including biotech, medical devices, clean energy, batteries, sustainability, and related areas. Operates a monthly...

Fairfield, Connecticut

Early-stage angel group (Angel Investor Forum, founded 2004) and AIF Seed Fund V investing primarily in Connecticut and US-based startups across life sciences, medical devices, SaaS, AI, clean...

Toronto, Ontario

Impactful Capital develops investible portfolios of bankable projects to accelerate climate action. The firm focuses on the missing middle of the energy transition, bridging the gap between venture...

Sand Hill Angels is a group of 145+ Silicon Valley angel investors focused on seed to Series B investments in disruptive, scalable technology companies. They provide funding, mentorship, and...

New York, NY

New York Angels is a membership-based group of 125+ accredited investors who invest individually in early-stage companies across a broad range of industries including Life Sciences, Medical Devices,...

Our mission is to provide superior returns for our investors while serving the early stage capital needs of women-led companies. We focus on women-owned or managed privately held seed and early stage...

Plains Angels is a network of angel investors seeking opportunities to invest and grow with scalable startups across diverse industries. We are currently seeking startups in pure technology,...

Greenwich, CT

Landmark Angels is a national private angel group based in Greenwich, CT, investing in early and growth-stage companies across life sciences, healthcare, digital health, medical devices,...

Gener8tor operates a national network of accelerators and invests $100K (investment-for-equity) in select high-growth startups across sectors with a strong emphasis on sustainability/cleantech,...

Creative Destruction Lab (CDL) is a global nonprofit that delivers an objectives-based program for massively scalable, seed-stage, science- and technology-based companies. CDL operates 23 streams...

CO

RVC connects and educates angel investors and entrepreneurs, sourcing and vetting early-stage (Pre-Seed to Series A) companies across Technology, Cleantech, and Life Sciences. Emphasizes partnership...

Toronto

Impactful Capital develops investible portfolios of bankable projects to accelerate climate action. The firm targets the energy transition’s “missing middle” by proactively developing opportunities...

New York, NY

Investing at the crossroads of infrastructure and innovation: focus on foundational infrastructure sectors (energy, power, mobility, logistics, digital, water, waste, biomanufacturing) and enabling...

Gainesville, Florida

UF Innovate is the University of Florida umbrella organization (Tech Licensing, Ventures, Pathways, Accelerate) that connects researchers and startups to commercialization resources, incubation (The...

Naples, FL

Member-managed angel funds investing $50,000 to $500,000 in seed and early-stage companies (preference for Florida/US). Focus on fintech, health tech, edtech, climate tech, AI and biotech; provide...

Summerville, SC

Public, nonprofit organization that supports South Carolina-based academic and technology startups via grants, coaching, facilities, and investments through its affiliate SC Launch, Inc.; focuses on...

California

Member-driven Silicon Valley angel group (145+ members) focused on seed to B-stage investments in disruptive, scalable technology companies. Provides capital, mentorship, and network access;...

Portland, Oregon

Sector-agnostic early-stage venture fund focused on Portland and the Pacific Northwest with a leaning toward tech-enabled companies. Invests in seed and early-stage companies including deep-tech,...

San Diego, CA

NuFund is an angel-led venture group based in San Diego that operates an Annual Fund model. We focus on early-stage (pre-seed to post-seed) technology and life-science companies...

Boston, MA

Financial and human capital investment in New England-headquartered early-stage science and tech-driven startups. Focus on priced equity rounds (Pre-Seed, Seed, Series A), capital efficiency, and...

Bakersfield, CA

Industry-agnostic early-stage to Series B investor focused on companies that positively impact Kern County and the Central Valley; leverages local strengths in aerospace, energy, agriculture,...

King of Prussia, PA

Keiretsu Forum is a global angel investor network (Mid-Atlantic, South-East & Texas regions) that sources, vets, and facilitates investment in early-stage companies across technology, healthcare/life...

Investors Circle is a 30+ year nonprofit network of impact-focused angel investors, foundations, family offices and partners that sources, diligences and co-invests in early-stage ventures delivering...

Santiago, Región Metropolitana

Invertimos en emprendimientos tecnológicos de impacto en etapas tempranas que busquen escalabilidad global y soluciones basadas en innovación.

Montana

Frontier Angels is a Montana-based network of ~100+ accredited angel investors focused on early-stage, tech-driven companies (Seed & Series A). They prioritize Montana roots and regionally connected...

Mount Pleasant, SC

Charleston Angel Partners (CAP) is a boutique angel investment group (est. 2004) that provides capital, counsel, and resources to early-stage founders. CAP focuses on high-performing teams across...

Michigan

Invest in women-led companies at seed and early stage growth across digital, mobile, cloud, life sciences, medical devices, advanced manufacturing and alternative energy, with preference for Michigan...

San Francisco, CA

Band of Angels is a formal group of 150+ angel investors based in Silicon Valley with presence in San Francisco and Los Angeles, investing primarily at Pre-Seed to Series A. Since 1994, the Band has...

Toronto, Texas

CDL is a nonprofit, objectives-based accelerator program that helps seed-stage, science- and technology-based companies commercialize research via mentor-led objective-setting sessions across...

Denver, CO

Platform of early-stage venture funds focused on investing in emerging technology, healthcare & life sciences, consumer/CPG, and cleantech. Runs diversified funds including a seed fund targeting...