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Energy Storage Startups

Updated July 2026

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

Explore 402 recently funded energy storage companies with verified founder contact information and fundraising data.

Total Companies
402
Total Funding
$1.9B
Avg Funding
$74.5M
Global Reach
12
countries

Top Cities for Energy Storage

Chicago
Lonate Pozzolo
Sofia
Kastrup
London
Austin

Recently Funded Companies

Export
Chicago, United States

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

Jul 2023

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

Kastrup, Denmark

Copenhagen Atomics is a manufacturer of thorium reactors.

Jul 2025

Founder Contacts

30,000+ verified contacts

London, United Kingdom

Sustainable and Low-Cost Battery Energy Storage

$1.7M raised
Jul 2024

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ 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

30,000+ verified contacts

Erlangen, Germany

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

Jul 2024

Founder Contacts

30,000+ 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

30,000+ verified contacts

Oslo, Norway

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

$500K raised
Jul 2024

Founder Contacts

30,000+ 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

30,000+ verified contacts

Carlsbad, United States

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

$10.0M raised
Jul 2024

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

Berkeley, United States

Power‑Plant‑in‑a‑Box for EV, Data Centers | Green Energy Everywhere

$2.9M raised
Jul 2024

Founder Contacts

30,000+ verified contacts

Markham, Canada

TROES is a Canadian company to develop smart power energy storage technologies, products and solutions.

Jul 2023

Founder Contacts

30,000+ verified contacts

Hellerup, Denmark

STACs Technology zero-emissions cooling solutions upcycle the District Energy industry's services and reach

$3.0M raised
Jul 2022

Founder Contacts

30,000+ verified contacts

Denver, United States

Peak Energy is a pioneering firm that is industrializing sodium-ion to expedite the shift to renewable energy.

Jun 2026

Founder Contacts

30,000+ verified contacts

Coeur D'alene, United States

Kore Power manufactures energy storage, electric vehicles, microgrids, utilities, and e-mobility systems for the clean energy industries.

$850.0M raised
Jun 2023

Founder Contacts

30,000+ verified contacts

Jasionka, Poland

Thin film battery production technology, economically viable for smartphones, wearables and IOT.

$8.1M raised
Jun 2022

Founder Contacts

30,000+ verified contacts

Shiba, Japan

Q.ENEST Holdings operates renewable power generation, electricity retail, storage, VPP, and greentech platform and ETRM services in Japan.

Jun 2026

Founder Contacts

30,000+ verified contacts

Dallas, United States

Solidion Technology is a battery technology company that manufactures battery materials, components, and next-generation batteries.

$35.0M raised
Jun 2026

Founder Contacts

30,000+ verified contacts

Rosny-sous-bois, France

Koolboks is a machinery manufacturing and selling company that provides solar-powered freezers, and ice makers for continuous refrigeration.

$1.5M raised
Jun 2026

Founder Contacts

30,000+ verified contacts

San Diego, United States

Pathway Power is a utility-scale solar and battery storage developer building a renewable energy value chain.

$150.0M raised
Jun 2026

Founder Contacts

30,000+ verified contacts

Showing 51 to 75 of 402 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 402 energy storage companies tracked in the VCBacked database.

Average Funding
$74.5M
Total Funding Tracked
$1.9B
Countries Represented
12

Distribution by Funding Stage

Other25 companies

Top Cities for Energy Storage

1.London
3 companies$404.4M
2.Chicago
1 companiesUndisclosed
3.Lonate Pozzolo
1 companiesUndisclosed
4.Sofia
1 companies$370.3M
5.Kastrup
1 companiesUndisclosed

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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402 Energy Storage Startups (2026) — Recently Funded Companies, Investors & Rounds — Page 3 | VCBacked