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Energy Storage Startups

Updated August 2026

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

Explore 417 recently funded energy storage companies with verified founder contact information and fundraising data.

Total Companies
417
Total Funding
$2.3B
Avg Funding
$92.9M
Global Reach
10
countries

Top Cities for Energy Storage

Sunnyvale
Boston
Hanover
South Yarra
Hamburg
Munich

Recently Funded Companies

Export
Sunnyvale, United States

Antora Energy is electrifying heavy industry with thermal energy storage for zero-carbon heat and power.

$550.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Boston, United States

BlueWave is to protect our planet by transforming access to renewable energy.

$247.0M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Hanover, Germany

MARCLEY ownes & manages the energy source within multi-family buildings in order to supply the residents with electricity.

$5.4M raised
Jul 2024

Founder Contacts

41,000+ verified contacts

South Yarra, Australia

Octopus Australia is a renewable energy developer and fund manager harnessing capital and expertise to accelerate the energy transition.

$651.3M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Hamburg, Germany

1Komma5° is a home electrification and climatetech company that provides intelligent energy solutions and promotes a CO₂-neutral lifestyle.

Jul 2025

Founder Contacts

41,000+ verified contacts

Munich, Germany

VoltStorage develops and produces solar energy storage systems based on the eco-friendly Redox Flow Battery technology.

$33.1M raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Chicago, United States

Haylon Technologies is enabling a new class of ultra-efficient battery packs.

Jul 2023

Founder Contacts

41,000+ verified contacts

Lonate Pozzolo, Italy

Energy Dome develops and deploys long-duration energy storage systems based on a proprietary CO₂-based technology.

Jul 2025

Founder Contacts

41,000+ verified contacts

Kastrup, Denmark

Copenhagen Atomics is a manufacturer of thorium reactors.

Jul 2025

Founder Contacts

41,000+ verified contacts

Sofia, Bulgaria

Renalfa is a clean energy investment group with focus in renewable energy and e-mobility.

$370.3M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Boston, United States

Reservoir provides smart heat pump water heaters with connected energy management and thermal storage.

$5.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Sunsave is a subscription-based platform that helps households to save solar battery system.

$134.9M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Austin, United States

Hexium enriches isotopes for next-gen reactors using LLNL AVLIS including Lithium and Uranium

$13.0M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Oxford, United Kingdom

Brill Power is a Battery Intelligence Platform that develops pioneering battery management technology.

$10.5M raised
Jul 2022

Founder Contacts

41,000+ verified contacts

Erlangen, Germany

Hydrogenious Technologies develops innovative solutions for safe and efficient hydrogen storage in liquid organic hydrogen carriers.

Jul 2024

Founder Contacts

41,000+ verified contacts

Warrington, United Kingdom

MoltexFLEX is developing the advanced small modular FLEX reactor and GridReserve energy storage system.

$1.7M raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Oslo, Norway

Knox Energy Solutions AS providing hydrogen fueling solutions for the maritime sector.

$500K raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Wilmington, United States

Lucius Nexus is a company that operates in the energy sector that offers energy conservation services.

$4.5M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Cero Generation is a solar energy company that develops solar energy and energy storage solutions.

$267.9M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Amsterdam, The Netherlands

Ore Energy develops a new generation, cost-effective, multi-day energy storage system for reliable renewable energy at all times.

Jul 2024

Founder Contacts

41,000+ verified contacts

Carlsbad, United States

Circularity platform that streamlines electric vehicle battery assessment, integration, and reuse.

$10.0M raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Brooklyn, United States

XL Batteries develops a technology platform to reduce waste formation.

$13.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Chicago Park, United States

548 Enterprise develops sustainable affordable housing and community solar projects and manages related capital and energy platforms.

$1.1M raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Tualatin, United States

VLTRU Technologies is a tech company dedicated to advancing battery management, safety solutions for the next generation of energy storage.

$600K raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Göteborg, Sweden

Organic electrolytes for flow batteries making grid-scale energy storage cost-effective and eco-friendly

$2.3M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Showing 51 to 75 of 417 companies

About the Energy Storage Startup Ecosystem

The energy storage 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 Storage

Energy Storage 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 storage 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 Storage Funding Breakdown

Here is how funding is distributed among the 417 energy storage companies tracked in the VCBacked database.

Average Funding
$92.9M
Total Funding Tracked
$2.3B
Countries Represented
10

Distribution by Funding Stage

Other25 companies

Top Cities for Energy Storage

1.Boston
2 companies$252.0M
2.London
2 companies$402.8M
3.Sunnyvale
1 companies$550.0M
4.Hanover
1 companies$5.4M
5.South Yarra
1 companies$651.3M

Related Industries

Companies in the energy storage 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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