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Energy Efficiency Startups

Updated July 2026

Companies in the energy efficiency sector developing innovative solutions and technologies.

Explore 413 recently funded energy efficiency companies with verified founder contact information and fundraising data.

Total Companies
413
Total Funding
$1.0B
Avg Funding
$40.2M
Global Reach
10
countries

Top Cities for Energy Efficiency

New Haven
Washington
Vilnius
Victoria
Brooklyn
Cambridge

Recently Funded Companies

Export
New Haven, United States

Oxylus Energy provides new carbon utilization technology for the generation of e-fuels.

Apr 2025

Founder Contacts

30,000+ verified contacts

Washington, United States

OpenGrid turns everyday commercial real estate into flexible grid infrastructure using behind-the-meter batteries and EV charging.

$1.0M raised
Apr 2024

Founder Contacts

30,000+ verified contacts

Vilnius, Lithuania

Inion software develops hardware and software monitoring platform for optimizing and tracking electricity generated by solar plants.

Apr 2022

Founder Contacts

30,000+ verified contacts

Victoria, Canada

B2B SaaS for Carbon Free Planning in Corporate Real Estate

Apr 2025

Founder Contacts

30,000+ verified contacts

Brooklyn, United States

Coral is a fintech platform that provides software who install things like heat pumps, EV chargers, and home batteries.

$7.5M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Cambridge, United Kingdom

Pulsiv develops world-leading electronic solutions for AC to DC Power Supplies and Solar Energy applications.

$2.3M raised
Mar 2024

Founder Contacts

30,000+ verified contacts

Newport Beach, United States

Envirotech is a provider of zero-emission electric & hybrid vehicles & drivetrain solutions that helps fleet operators with their business.

$3.8M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

São Paulo, Brazil

Clarke Energia is the first marketplace of deregulated energy (freedom energy) in Brazil.

Mar 2024

Founder Contacts

30,000+ verified contacts

Esbjerg, Denmark

Exowave is a cleantech company with a patented technology to produce fresh water, clean electricity and P2X from ocean wave energy

$2.1M raised
Mar 2022

Founder Contacts

30,000+ verified contacts

Toronto, Canada

Aypa Power builds, owns, and manages large-scale renewable energy projects to enhance grid stability and reduce dependency on fossil fuels.

$500.0M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Paris, France

SaaS, Sustainability, Real Estate

$167.4M raised
Mar 2022

Founder Contacts

30,000+ verified contacts

Nantes, France

Collectif Énergie is an energy management service provider which enables customers to buy and consume electricity and gas more efficiently.

$1.8M raised
Mar 2022

Founder Contacts

30,000+ verified contacts

Monrovia, United States

LiNova Energy is a developer of ultra-high energy density batteries.

$4.2M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

San Francisco, United States

Ecomedes is a SaaS platform that helps manufacturers, designers, builders, and building owners save time and money.

Mar 2024

Founder Contacts

30,000+ verified contacts

Rochester, United States

Resilient, efficient Thermal Energy Storage for C&I buildings

$25K raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Farmers Branch, United States

Skyven Technologies is an energy-as-a-service company with a mission to decarbonize industrial process heat.

$145.0M raised
Mar 2024

Founder Contacts

30,000+ verified contacts

Uji, Japan

Next Core Technologies is a tech company that offers prototype motor electrical and soft magnetic properties.

$13.1M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Calgary, Canada

MyHEAT helps visualize home heat loss for improved comfort, savings, and energy efficiency.

$1.6M raised
Mar 2022

Founder Contacts

30,000+ verified contacts

Scottsdale, United States

Trutankless is a public company that manufactures electric tankless water heaters.

$175K raised
Mar 2022

Founder Contacts

30,000+ verified contacts

London, United Kingdom

Lightsource is a renewable energy company that provides ground and rooftop solar installations in the UK.

$140.0M raised
Mar 2024

Founder Contacts

30,000+ verified contacts

Newcastle, Australia

Making 24/7 renewables a reality through Thermal Energy Storage.

$12.0M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Sheffield, United Kingdom

AmpliSi focuses on sustainable porous silicon anodes for lithium-ion batteries.

$2.7M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Singapore, Singapore

SOLV8 is a technology for sustainable solvent separation.

$147K raised
Mar 2022

Founder Contacts

30,000+ verified contacts

London, United Kingdom

Dodo is a platform to capture emissions and issue green loans.

$173K raised
Mar 2022

Founder Contacts

30,000+ verified contacts

San Jose, United States

Energy Internet Corporation unites engineering and hardware systems to produce efficient energy storage and renewable energy distribution.

$400K raised
Mar 2024

Founder Contacts

30,000+ verified contacts

Showing 151 to 175 of 413 companies

About the Energy Efficiency Startup Ecosystem

The energy efficiency sector is an active area of startup innovation and venture capital investment. Companies in this space are developing new technologies, platforms, and services that address evolving market needs and create new business opportunities.

Funding Trends in Energy Efficiency

Energy Efficiency companies raise capital across various funding stages, from early seed rounds to late-stage growth financing. Investor interest in this sector is driven by the size of the addressable market, the pace of technology adoption, and the potential for scalable business models.

Growth Outlook

The energy efficiency sector is expected to continue evolving as technology advances, market dynamics shift, and new opportunities emerge. Companies that demonstrate strong product-market fit, efficient growth, and clear competitive advantages are well-positioned to attract continued investment.

Energy Efficiency Funding Breakdown

Here is how funding is distributed among the 413 energy efficiency companies tracked in the VCBacked database.

Average Funding
$40.2M
Total Funding Tracked
$1.0B
Countries Represented
10

Distribution by Funding Stage

Other25 companies

Top Cities for Energy Efficiency

1.London
2 companies$140.2M
2.New Haven
1 companiesUndisclosed
3.Washington
1 companies$1.0M
4.Vilnius
1 companiesUndisclosed
5.Victoria
1 companiesUndisclosed

Related Industries

Companies in the energy efficiency sector often overlap with or complement businesses in adjacent industries. Exploring related verticals can help you discover additional companies, identify partnership opportunities, and understand the broader competitive landscape.

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