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    Top Energy Efficiency Accelerators & VCs (2026)

    Browse energy efficiency startup programs and VCs with updated offers, deadlines, and funding for 2026.

    Updated Jun 2026

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    28 VCs found

    Plug and Play logo
    Venture Capital Firm

    Plug and Play

    Plug and Play is an innovation platform bringing together startups and large corporations.

    Open
    Plug and Play: Plug and Play is an innovation platform bringing together startups and large corporations.. Stage: Seed, Series A +3. Focus: Enterprise Software, FinTech +80. Venture Capital Firm, Accelerator, Family Office, Corporate VC. Located in Sunnyvale, Ann Arbor, USA, North America, Europe, Asia, MENA, South America, Oceania, Africa. $50K - $1M available.
    Sunnyvale
    Ann Arbor
    +8
    Stage

    Seed, Series A +3

    Focus

    Enterprise Software, FinTech +80

    Offer

    $50K - $1M

    View VC Details
    Octopus Ventures logo
    Venture Capital Firm

    Octopus Ventures

    Our skilled B2B Software team supports companies that are reshaping industries with digitisation and automation making life easier for customers everywhere.

    Open
    Octopus Ventures: Our skilled B2B Software team supports companies that are reshaping industries with digitisation and automation making life easier for customers everywhere.. Stage: Series A, Series B +5. Focus: SaaS, Enterprise Software +78. Check size: $750,000 – $15,000,000. Venture Capital Firm, Corporate VC, Investment Fund. Located in London, UK, Europe, North America, MENA, Oceania, Africa, West Europe. £100K - £25M available.
    London
    UK
    +6
    Stage

    Series A, Series B +5

    Focus

    SaaS, Enterprise Software +78

    Check size

    $750,000 – $15,000,000

    Offer

    £100K - £25M

    View VC Details
    InnoEnergy logo
    Investment Fund

    InnoEnergy

    Transitioning global energy Transforming every industry

    Open
    InnoEnergy: Transitioning global energy Transforming every industry. Stage: Seed, Series A +1. Focus: Robotics, Mobility +6. Investment Fund, Venture Capital Firm. Located in Eindhoven, New York, The Netherlands, USA, Europe, North America. $250K - $8M available.
    Eindhoven
    New York
    +4
    Stage

    Seed, Series A +1

    Focus

    Robotics, Mobility +6

    Offer

    $250K - $8M

    View VC Details
    Huron River Ventures logo
    Venture Capital Firm

    Huron River Ventures

    We invest in early-stage companies in industries that drive the global economy — agriculture energy manufacturing and mobility.

    Open
    Huron River Ventures: We invest in early-stage companies in industries that drive the global economy — agriculture energy manufacturing and mobility.. Stage: Seed, Early Stage VC +3. Focus: Analytics, Enterprise Software +6. Venture Capital Firm. Located in Ann Arbor, New York, USA, North America. $1M available.
    Ann Arbor
    New York
    +2
    Stage

    Seed, Early Stage VC +3

    Focus

    Analytics, Enterprise Software +6

    Offer

    $1M

    View VC Details
    Lime Rock New Energy logo
    Venture Capital Firm

    Lime Rock New Energy

    Since inception in 1998 100+ INVESTMENTS

    Open
    Lime Rock New Energy: Since inception in 1998 100+ INVESTMENTS. Stage: Series C. Focus: Energy Efficiency, Mobility +3. Venture Capital Firm. Located in San Diego, USA, North America. $30M - $90M available.
    San Diego
    USA
    +1
    Stage

    Series C

    Focus

    Energy Efficiency, Mobility +3

    Offer

    $30M - $90M

    View VC Details
    Eurazeo logo
    Venture Capital Firm

    Eurazeo

    Eurazeo, société d'investissement au service du développement des entreprises en Europe et dans le monde.

    OpenCan lead
    Eurazeo: Eurazeo, société d'investissement au service du développement des entreprises en Europe et dans le monde.. Stage: Seed, Series A +4. Focus: Biodiversity, Built World +62. Venture Capital Firm, Private Equity Firm. Located in Paris, Singapore, France, Asia, Europe. $1M - $20M available.
    Paris
    Singapore
    +3
    Stage

    Seed, Series A +4

    Focus

    Biodiversity, Built World +62

    Offer

    $1M - $20M

    View VC Details
    The Impact Engine logo
    Venture Capital Firm

    The Impact Engine

    Impact Engine is a venture capital and private equity firm investing in companies driving positive impact in economic empowerment education environmental sustai…

    Open
    The Impact Engine: Impact Engine is a venture capital and private equity firm investing in companies driving positive impact in economic empowerment education environmental sustai…. Stage: Seed, Convertible Note +2. Focus: Education, Healthcare +9. Venture Capital Firm, Micro VC, Private Equity Firm. Located in Chicago, USA, North America.
    Chicago
    USA
    +1
    Stage

    Seed, Convertible Note +2

    Focus

    Education, Healthcare +9

    View VC Details
    Saudi Aramco Ventures - Wa'ed Ventures logo
    Corporate VC

    Saudi Aramco Ventures - Wa'ed Ventures

    Open
    Saudi Aramco Ventures - Wa'ed Ventures: Startup program. Stage: Growth, Seed +3. Focus: Renewables, Energy Generation +13. Corporate VC. Located in London, UK, Europe. $500K - $20M available.
    London
    UK
    +1
    Stage

    Growth, Seed +3

    Focus

    Renewables, Energy Generation +13

    Offer

    $500K - $20M

    View VC Details
    National Grid Partners logo
    Corporate VC

    National Grid Partners

    Powering the things you love

    OpenCan lead
    National Grid Partners: Powering the things you love. Stage: Pre-Seed, Seed +5. Focus: AI, Machine Learning +13. Corporate VC. Located in London, Los Gatos, UK, USA, North America, Europe. $5M - $7M available.
    London
    Los Gatos
    +4
    Stage

    Pre-Seed, Seed +5

    Focus

    AI, Machine Learning +13

    Offer

    $5M - $7M

    View VC Details
    Capria Ventures logo
    Venture Capital Firm

    Capria Ventures

    We are capria Ventures

    Open
    Capria Ventures: We are capria Ventures. Stage: Series A, Seed +1. Focus: Circular Economy, Forestry +20. Venture Capital Firm. Located in Seattle, Bangalore, Nairobi, Washington, Port Louis, Buenos Aires, Argentina, South America. $500K - $2M available.
    Seattle
    Bangalore
    +6
    Stage

    Series A, Seed +1

    Focus

    Circular Economy, Forestry +20

    Offer

    $500K - $2M

    View VC Details
    Ponooc logo
    Venture Capital Firm

    Ponooc

    Ponooc continues as Move Energy

    Open
    Ponooc: Ponooc continues as Move Energy. Stage: Series A, Seed +3. Focus: Energy Efficiency, Energy Generation +64. Check size: $500,000 – $5,000,000. Venture Capital Firm. Located in Amsterdam, The Netherlands, Europe. $500K - $5M available.
    Amsterdam
    The Netherlands
    +1
    Stage

    Series A, Seed +3

    Focus

    Energy Efficiency, Energy Generation +64

    Check size

    $500,000 – $5,000,000

    Offer

    $500K - $5M

    View VC Details
    Great Wave Ventures logo
    Venture Capital Firm

    Great Wave Ventures

    BUILDING COMMUNITY

    OpenCan lead
    Great Wave Ventures: BUILDING COMMUNITY. Stage: Pre-Seed, Seed +2. Focus: Built World, Construction +23. Check size: $250 – $2,000,000. Venture Capital Firm. Located in New York, USA, North America. $250K - $2M available.
    New York
    USA
    +1
    Stage

    Pre-Seed, Seed +2

    Focus

    Built World, Construction +23

    Check size

    $250 – $2,000,000

    Offer

    $250K - $2M

    View VC Details
    SURGE Ventures logo
    Venture Capital Firm

    SURGE Ventures

    Partner with Surge Ventures the leading venture studio in RegTech ComplyTech and PrivacyTech. Transform your SaaS startup idea into a thriving business.

    Open
    SURGE Ventures: Partner with Surge Ventures the leading venture studio in RegTech ComplyTech and PrivacyTech. Transform your SaaS startup idea into a thriving business.. Stage: Seed. Focus: Energy, Oil & Gas +3. Venture Capital Firm. Located in Houston, USA, North America.
    Houston
    USA
    +1
    Stage

    Seed

    Focus

    Energy, Oil & Gas +3

    View VC Details
    Purpose Capital Impact Fund logo
    Private Equity Firm

    Purpose Capital Impact Fund

    Generating meaningful impact and financial returns

    Open
    Purpose Capital Impact Fund: Generating meaningful impact and financial returns. Stage: Growth. Focus: Biodiversity, Climate Impact +10. Private Equity Firm. Located in Auckland, New Zealand, Other, Oceania. $500K - $3M available.
    Auckland
    New Zealand
    +2
    Stage

    Growth

    Focus

    Biodiversity, Climate Impact +10

    Offer

    $500K - $3M

    View VC Details
    NXT: Commercial Innovation Programme logo
    Accelerator

    NXT: Commercial Innovation Programme

    InsurTech Innovation & Growth through Collaboration 🚀🤝

    OpenRemote
    NXT: Commercial Innovation Programme: InsurTech Innovation & Growth through Collaboration 🚀🤝. Stage: Non Equity Assistance, Not Seeking Funding. Focus: InsurTech, Insurance +28. Accelerator, Incubator, Entrepreneurship Program. Located in Munich, Germany, Europe, North America, MENA, Worldwide. Sessions with insurers available.
    Munich
    Germany
    +4
    Stage

    Non Equity Assistance, Not Seeking Funding

    Focus

    InsurTech, Insurance +28

    Offer

    Sessions with insurers

    View VC Details
    LifeX Ventures logo
    Venture Capital Firm

    LifeX Ventures

    Life Extension Ventures

    Open
    LifeX Ventures: Life Extension Ventures. Stage: Pre-Seed, Seed +1. Focus: BioTech, Life Sciences +79. Check size: $150 – $500,000. Venture Capital Firm. Located in New York, London, San Francisco, USA, North America. $150K - $5M available.
    New York
    London
    +3
    Stage

    Pre-Seed, Seed +1

    Focus

    BioTech, Life Sciences +79

    Check size

    $150 – $500,000

    Offer

    $150K - $5M

    View VC Details
    KIC INNOENERGY  logo
    Accelerator

    KIC INNOENERGY

    Transitioning global energy Transforming every industry

    Open
    KIC INNOENERGY : Transitioning global energy Transforming every industry. Stage: Pre-Seed, Seed. Focus: Energy Generation, Energy Efficiency +5. Accelerator. Located in Paris, France, Europe. €200K - $500K available.
    Paris
    France
    +1
    Stage

    Pre-Seed, Seed

    Focus

    Energy Generation, Energy Efficiency +5

    Offer

    €200K - $500K

    View VC Details
    E44 Ventures  logo
    Venture Capital Firm

    E44 Ventures

    Focused on Innovation Impacting Multiple Industries, for Generations to Come

    Open
    E44 Ventures : Focused on Innovation Impacting Multiple Industries, for Generations to Come. Stage: Pre-Seed, Seed. Focus: Low Carbon Materials, Fuels +44. Venture Capital Firm. Located in Israel, MENA, Middle East. $300K - $2M available.
    Israel
    MENA
    +1
    Stage

    Pre-Seed, Seed

    Focus

    Low Carbon Materials, Fuels +44

    Offer

    $300K - $2M

    View VC Details
    Sabic Ventures
 logo
    Corporate VC

    Sabic Ventures

    SABIC VENTURES – HELPING INNOVATIVE COMPANIES

    OpenCan lead
    Sabic Ventures : SABIC VENTURES – HELPING INNOVATIVE COMPANIES. Stage: Seed, Series A +2. Focus: Carbon Capture / CCUS, Fuels +25. Corporate VC. Located in Riyadh, Saudi Arabia, Europe, Middle East, MENA. $1M available.
    Riyadh
    Saudi Arabia
    +3
    Stage

    Seed, Series A +2

    Focus

    Carbon Capture / CCUS, Fuels +25

    Offer

    $1M

    View VC Details
    Clima Now logo
    Venture Capital Firm

    Clima Now

    Our Earth is our heritage. And our future.

    Open
    Clima Now: Our Earth is our heritage. And our future.. Stage: Pre-Seed, Seed +1. Focus: Clean Meat, Alt Proteins +20. Venture Capital Firm, Foundation. Located in Zurich, Switzerland, Europe. $500K available.
    Zurich
    Switzerland
    +1
    Stage

    Pre-Seed, Seed +1

    Focus

    Clean Meat, Alt Proteins +20

    Offer

    $500K

    View VC Details
    Cleantech Business Angels logo
    Angel Investor

    Cleantech Business Angels

    Cleantech Business Angels, le réseau de Business Angels dédié à la transition écologique et énergétique

    Open
    Cleantech Business Angels: Cleantech Business Angels, le réseau de Business Angels dédié à la transition écologique et énergétique. Stage: Pre-Seed, Seed. Focus: Energy Efficiency, Climate Impact +2. Angel Investor. Located in Paris, France, Europe. $200K available.
    Paris
    France
    +1
    Stage

    Pre-Seed, Seed

    Focus

    Energy Efficiency, Climate Impact +2

    Offer

    $200K

    View VC Details
    M8 Ventures logo
    Venture Capital Firm

    M8 Ventures

    M8 Ventures is a pre-seed and seed specialist venture fund focused on finding and evaluating the best product and technical teams from Australia and New Zealand…

    Open
    M8 Ventures: M8 Ventures is a pre-seed and seed specialist venture fund focused on finding and evaluating the best product and technical teams from Australia and New Zealand…. Stage: Pre-Seed, Pre-Series A +1. Focus: Energy Efficiency. Venture Capital Firm. Located in Madison, USA, North America.
    Madison
    USA
    +1
    Stage

    Pre-Seed, Pre-Series A +1

    Focus

    Energy Efficiency

    View VC Details
    Data Center Incubator logo
    Incubator

    Data Center Incubator

    Empowering Data Center startups to thrive. Enrich your skills, experiences & network by engaging with mentors,investors.

    Open
    Data Center Incubator: Empowering Data Center startups to thrive. Enrich your skills, experiences & network by engaging with mentors,investors.. Stage: Not Seeking Funding. Focus: Data Center, Data Security +12. Incubator, Accelerator, Mentorship Program. Located in Tel - Aviv, Israel, MENA, Europe, Middle East.
    Tel - Aviv
    Israel
    +3
    Stage

    Not Seeking Funding

    Focus

    Data Center, Data Security +12

    View VC Details
    Atland Ventures logo
    Venture Capital Firm

    Atland Ventures

    Recognized By…

    Open
    Atland Ventures: Recognized By…. Stage: Pre-Seed, Seed. Focus: Sustainable Consumption, Agnostic +19. Check size: $25,000,000 – $50,000. Venture Capital Firm. Located in Minneapolis, USA, North America. €25K - $50K available.
    Minneapolis
    USA
    +1
    Stage

    Pre-Seed, Seed

    Focus

    Sustainable Consumption, Agnostic +19

    Check size

    $25,000,000 – $50,000

    Offer

    €25K - $50K

    View VC Details
    Green Future Investments Ltd Fund logo
    Entrepreneurship Program

    Green Future Investments Ltd Fund

    Support to take innovations from benchtop to prototype or demonstrator scale.

    Open
    Green Future Investments Ltd Fund: Support to take innovations from benchtop to prototype or demonstrator scale.. Stage: Grant. Focus: Academic, Advanced Materials +19. Entrepreneurship Program, University Program, Accelerator, Startup Competition. Located in Bedford, UK, Europe. Up to £50,000 grant available.
    Bedford
    UK
    +1
    Stage

    Grant

    Focus

    Academic, Advanced Materials +19

    Offer

    Up to £50,000 grant

    View VC Details
    IBM Ventures logo
    Corporate VC

    IBM Ventures

    Steigern Sie die Produktivität mit KI-Agenten

    OpenCan lead
    IBM Ventures: Steigern Sie die Produktivität mit KI-Agenten. Stage: Seed, Early Stage VC +2. Focus: Materials, Manufacturing +45. Check size: $2,000,000 – $10,000,000. Corporate VC. Located in New York, Armonk, USA, North America.
    New York
    Armonk
    +2
    Stage

    Seed, Early Stage VC +2

    Focus

    Materials, Manufacturing +45

    Check size

    $2,000,000 – $10,000,000

    View VC Details
    Plug and Play Tech Center - Batch Program logo
    Accelerator

    Plug and Play Tech Center - Batch Program

    Plug and Play is a seed and early-stage investor focused on great teams leading emerging growth companies. Plug and Play runs 12 industry-specific accelerator…

    ClosedCan lead
    Plug and Play Tech Center - Batch Program: Plug and Play is a seed and early-stage investor focused on great teams leading emerging growth companies. Plug and Play runs 12 industry-specific accelerator…. Stage: Seed, Series A +5. Focus: Enterprise Software, FinTech +83. Accelerator, Venture Capital Firm, Co-working Space, University Program. Located in Sunnyvale, Ann Arbor, USA, UK, Germany, Japan, Canada, France, Israel, Singapore, Spain, Switzerland, Brazil, Italy, The Netherlands, Australia, Indonesia, Sweden, Finland, Morocco, Belgium, India, Poland, Ireland, China, South Korea, Austria, UAE, Denmark, Mexico, Chile, Hong Kong, Turkey, Estonia, Portugal, Norway, New Zealand, Thailand, Latvia, Taiwan, South Africa, Russia, Colombia, Kenya, Czech Republic, Egypt, Nigeria, Ghana, Philippines, Argentina, Uganda, Greece, Iceland, Lithuania, Hungary, Luxembourg, Ukraine, Venezuela, Croatia, Saudi Arabia, Cameroon, Malaysia, Oman, Ecuador, Romania, Malta, Libya, Slovakia, Panama, Bulgaria, Anguilla, Guatemala, Myanmar, Tunisia, Peru, Trinidad and Tobago, Moldova, Cayman Islands, Costa Rica, Pakistan, El Salvador, North America, Europe, Asia, MENA, South America, Oceania, Africa, Worldwide, Emerging Markets, EMEA, Middle East. Apply by Application closed. $50K - $1M available.
    Sunnyvale
    Ann Arbor
    +90
    Stage

    Seed, Series A +5

    Focus

    Enterprise Software, FinTech +83

    Offer

    $50K - $1M

    View VC Details
    Venture Fellows Program logo
    Accelerator

    Venture Fellows Program

    Do you have an idea to make your community more resilient, equitable, & sustainable? The Venture Fellows program is a 9-month hands-on experience – we invest in…

    Closed
    Venture Fellows Program: Do you have an idea to make your community more resilient, equitable, & sustainable? The Venture Fellows program is a 9-month hands-on experience – we invest in…. Stage: Non Equity Assistance. Focus: Agriculture, Agrifood +15. Accelerator. Located in Los Angeles, Miami, USA, North America.
    Los Angeles
    Miami
    +2
    Stage

    Non Equity Assistance

    Focus

    Agriculture, Agrifood +15

    View VC Details

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    FAQs about Energy Efficiency funding

    Best Energy Efficiency accelerators/VCs in 2026?

    See the curated list below; filter by open deadlines and offer terms.

    Which programs are open right now?

    Check the “Open now” section for future deadlines and active cohorts.

    What are typical funding/equity terms?

    Offers vary by program; see each card for check size, equity, or equity-free notes.

    Are there remote options?

    Many programs support remote; confirm on each card’s details (remote flag or location).