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Energy Efficiency Startups

Updated July 2026

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

Explore 410 recently funded energy efficiency companies with verified founder contact information and fundraising data.

Total Companies
410
Total Funding
$429.5M
Avg Funding
$17.2M
Global Reach
12
countries

Top Cities for Energy Efficiency

Manhattan
Barcelona
Santiago
Somerville
Denver
Atlanta

Recently Funded Companies

Export
Manhattan, United States

Dynamo Energy Hub is a global network that provides industry thought leaders with a platform to shape the future of energy.

$1.0M raised
Dec 2022

Founder Contacts

30,000+ verified contacts

Barcelona, Spain

Submer enables next-generation cooling and automation for data and energy-

$20.9M raised
Dec 2024

Founder Contacts

30,000+ verified contacts

Santiago, Chile

IoT hardware and software development for monitoring electrical consumption within companies.

$200K raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Somerville, United States

Greentown Labs is a climate technology incubator that seeks to invest in the clean technology, energy, and environmental industries.

$3.0M raised
Dec 2024

Founder Contacts

30,000+ verified contacts

Denver, United States

Redaptive is an Energy-as-a-Service provider that funds and installs energy-saving and energy-generating equipment.

$216.0M raised
Dec 2025

Founder Contacts

30,000+ verified contacts

Atlanta, United States

AI for Architecture Company

$30.0M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Fondi, Italy

Termo is a provider of heating and climatization solutions and energy requalification for residential buildings

$8.5M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Hutto, United States

Dabbsson provides home backup power stations, modular customization, and portable solar panels.

$75.0M raised
Dec 2022

Founder Contacts

30,000+ verified contacts

Madrid, Spain

Ezzing Solar is an international company that specializes in the development of online tools for the solar industry.

Dec 2023

Founder Contacts

30,000+ verified contacts

Amsterdam, The Netherlands

One-stop shop for solar mini-grids

$1.4M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Stara Iwiczna, Poland

Effective biomass combustion and cogeneration

Dec 2021

Founder Contacts

30,000+ verified contacts

Zizers, Switzerland

DHP Technology is a startup in the energy that aims to provide a contemporary energy supply that meets the requirements of the environment.

$1.7M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

London, United Kingdom

Airex is a smart ventilation control that builds intelligent air ventilation units using atmospheric sensors and cloud algorithms.

$3.2M raised
Dec 2022

Founder Contacts

30,000+ verified contacts

Madrid, Spain

Silbat is a electricity storage technology that can turn intermittent renewable energies into fully dispatchable electricity sources.

$424K raised
Dec 2025

Founder Contacts

30,000+ verified contacts

Boston, United States

Found Energy is a renewable energy company engaging in turning aluminum into a renewable energy carrier.

Dec 2024

Founder Contacts

30,000+ verified contacts

Stockholm, Sweden

Enerpoly is a next-generation energy storage technology company pioneering the zinc-ion battery chemistry.

$8.4M raised
Dec 2023

Founder Contacts

30,000+ verified contacts

Bristol, United Kingdom

The B2B AI property platform supporting businesses and homeowners to make sustainable decisions

$1.1M raised
Dec 2023

Founder Contacts

30,000+ verified contacts

Alcove, Canada

Fab Structures is a Canadian firm that specializes in designing and building high-performance, prefabricated mass timber buildings.

$600K raised
Jan 2025

Founder Contacts

30,000+ verified contacts

São Paulo, Brazil

Minum provides energy subscription plans that replace traditional electricity billing with tailored, data-driven energy services.

$10.0M raised
Jan 2024

Founder Contacts

30,000+ verified contacts

Stockholm, Sweden

SunRoof is a start-up developing fully solar 2-in-1 roofs and façades as well as solutions to support smart energy management.

$14.6M raised
Jan 2023

Founder Contacts

30,000+ verified contacts

Berlin, Germany

Comgy digitizes the measurement, visualization and billing of heat, water and electricity consumption in real estate.

$29.0M raised
Nov 2021

Founder Contacts

30,000+ verified contacts

Claymont, United States

Akiflow is a task manager and time blocking app that aims to boost individual productivity with better time management.

$1.4M raised
Nov 2024

Founder Contacts

30,000+ verified contacts

Edinburgh, United Kingdom

Snugg is working on a platform to assist homeowners in identifying, financing, and implementing energy efficiency upgrades in their houses.

$2.5M raised
Jan 2024

Founder Contacts

30,000+ verified contacts

Somerville, United States

Helix Power is a development stage company designing a next generation power management platform using flywheel technology.

$531K raised
Nov 2021

Founder Contacts

30,000+ verified contacts

Chicago, United States

ForeLight is developting the biomanufacturing industry through their proprietary photosynthetic production technology.

Nov 2021

Founder Contacts

30,000+ verified contacts

Showing 326 to 350 of 410 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 410 energy efficiency companies tracked in the VCBacked database.

Average Funding
$17.2M
Total Funding Tracked
$429.5M
Countries Represented
12

Distribution by Funding Stage

Other25 companies

Top Cities for Energy Efficiency

1.Somerville
2 companies$3.5M
2.Madrid
2 companies$424K
3.Stockholm
2 companies$23.0M
4.Manhattan
1 companies$1.0M
5.Barcelona
1 companies$20.9M

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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410 Energy Efficiency Startups (2026) — Recently Funded Companies, Investors & Rounds | VCBacked