Company lists · Data refreshed October 2026

Top 25 Redox flow battery or fuel cell suppliers worldwide

RevenueBase identified 109 company matches for redox flow battery or fuel cell suppliers worldwide as of October 2026 and tracks 1,876 professional contacts across them, including 686 with verified work emails. London is the largest hub.

This list covers company matches for redox flow battery or fuel cell suppliers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 29, 2026 How this list was built
109Companies
1,876Contacts tracked
686Verified emails
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The 25 largest redox flow battery or fuel cell suppliers worldwide

Ranked by team size
Top 25 of 109 company matches for redox flow battery or fuel cell suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAlpharetta, GA, United StatesHQ recorded Oct 29, 20261,001-5,000696 contacts →

Exact match

“Stryten Energy helps solve the world’s most pressing energy challenges with a broad range of energy storage solutions across the Essential Power, Motive Power, Transportation…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
2Exact matchAlzenau In Unterfranken, GermanyHQ recorded Oct 29, 2026201-500174 contacts →

Exact match

“CMBlu Energy develops and produces high-performance batteries for energy utility companies, grid operators as well as commercial and industrial demand.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
3Exact matchSingaporeHQ recorded Oct 29, 202651-20089 contacts →

Exact match

“VFlowTech is a Singapore headquartered deep tech company pioneering vanadium redox flow battery (VRFB) systems for long-duration energy storage.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
4Exact matchDaedeok-gu, South KoreaHQ recorded Oct 29, 202651-20058 contacts →

Exact match

“Standard Energy is an advanced technology company designing and producing large-scale secondary batteries for energy storage systems.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
5Exact matchKehlen, LuxembourgHQ recorded Oct 29, 20261,001-5,00057 contacts →

Exact match

“Amer-Sil is a very dynamic, mid-size industrial company, based in Luxembourg, we are a proud player in the current and future energy transition.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
6Exact matchWiener Neudorf, AustriaHQ recorded Oct 29, 202651-20052 contacts →

Exact match

“CellCube Energy Storage is one of the world's first and largest researcher, developer, manufacturer and distributor of vanadium flow batteries.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
7Exact matchMunich, GermanyHQ recorded Oct 29, 202651-20038 contacts →

Exact match

“VoltStorage is an energy storage company that develops innovative products and solutions to help providers and customers maximize energy value, eliminate curtailment/waste, and…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
8Exact matchArnhem, NetherlandsHQ recorded Oct 29, 202651-20036 contacts →

Exact match

“Elestor has introduced an innovative electricity storage technology for large scale stationary applications (LDES), based on the flow battery principle.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
9Exact matchBellville, TX, United StatesHQ recorded Oct 29, 202651-20031 contacts →

Exact match

“TerraFlow Energy designs and manufactures long-duration flow battery systems and integrated power solutions built to solve some of the toughest challenges in energy storage-power…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
10Exact matchPune, IndiaHQ recorded Oct 29, 202611-5030 contacts →

Exact match

“We work on Solid Oxide & PEM technologies for Fuel Cell Solutions on Stationary & Mobility sectors and Solid Oxide & AEM electrolysers for production of Green Hydrogen & e-Fuels.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
11Exact matchBrisbane, AustraliaHQ recorded Oct 29, 202611-5029 contacts →

Exact match

“Redflow Limited, a publicly listed Australian company (ASX: RFX), produces zinc-bromine flow batteries for stationary energy storage applications.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
12Exact matchColumbia Falls, MT, United StatesHQ recorded Oct 29, 202611-5029 contacts →

Exact match

“ViZn Energy Systems is an international energy storage equipment and engineering company.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
13Exact matchMarlborough, MA, United StatesHQ recorded Oct 29, 202611-5028 contacts →

Exact match

“Founded in 2019 by the scientists who discovered our patented chemistry at Columbia University, XL Batteries is redefining grid-scale energy storage.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
14Exact matchMilan, ItalyHQ recorded Oct 29, 202611-5022 contacts →

Exact match

“DeepTech startup based in Milan (Italy), developing a sustainable and low-cost redox flow battery (RFB) for long-duration energy storage (LDES).”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
15Exact matchPaphos, CyprusHQ recorded Oct 29, 202651-20017 contacts →

Exact match

“Redox One manufactures iron-chromium flow batteries for the large-scale energy storage requirements of businesses, industry and electricity networks.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
16Exact matchOld Town, Czech RepublicHQ recorded Oct 29, 202611-5011 contacts →

Exact match

“Pinflow energy storage tailors redox flow batteries ranging from high-end cells for laboratory research to the complete solutions for stabilizing and management of renewable…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
17Exact matchEdinburgh, United KingdomHQ recorded Oct 29, 202611-5010 contacts →

Exact match

“StorTera is an Edinburgh based energy storage solution provider.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
18Exact matchUnited StatesHQ recorded Oct 29, 20261-1010 contacts →

Exact match

“Quino Energy is scaling up an aqueous flow battery that uses specially designed reactants called quinones that are dissolved in water.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
19Exact matchBietigheim, GermanyHQ recorded Oct 29, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
20Exact matchDaejeon, South KoreaHQ recorded Oct 29, 202651-2009 contacts →

Exact match

“H2 is a Korea-based advanced energy storage company specialized in vanadium redox flow battery which is an optimal solution especially for large-scale and long-duration energy…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
21Exact matchManchester, United KingdomHQ recorded Oct 29, 20261-108 contacts →

Exact match

“HalioGen Power enables the world’s decarbonisation by providing a resilient, sustainable and affordable technology to make renewable energy accessible anywhere, anytime, and for…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
22Exact matchGothenburg, SwedenHQ recorded Oct 29, 20261-107 contacts →

Exact match

“Rivus Batteries offers truly green batteries for stationary energy storage applications through organic flow batteries.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
23Exact matchBurnaby, BC, CanadaHQ recorded Oct 29, 20261-107 contacts →

Exact match

“PEM fuel cells have been around for years, and the basics are covered well in the public domain, but building a world-class fuel cell stack cannot be done with just public…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
24Exact matchCherry Hill, NJ, United StatesHQ recorded Oct 29, 20261-107 contacts →

Exact match

“The Krydon Group Inc offers our customer world class energy products for mission critical applications while assisting them with system design, integration and deployment project…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
25Exact matchEspoo, FinlandHQ recorded Oct 29, 20261-106 contacts →

Exact match

“Halide Energy manufactures cost-effective, high performing, and sustainable copper flow batteries to enable grid-scale and industrial adopters to overcome their long duration…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase

Showing 25 of 109 redox flow battery or fuel cell suppliers worldwide

See the full list, filter by size, metro and specialty, and access 686 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Redox flow battery or fuel cell suppliers worldwide at a glance

As of Oct 29, 2026
36.6%Verified-email coverage
17.2Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · London
Oct 29, 2026Page data refreshed

Companies by employee count

1-10
51
11-50
31
51-200
19
201-500
4
501-1,000
1
1,001-5,000
2
10001+
1

Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 109 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records worldwide whose business descriptions match “redox flow battery or fuel cell suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 686 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on October 29, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “redox flow battery or fuel cell suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many redox flow battery or fuel cell suppliers are there worldwide?

RevenueBase identified 109 company matches for redox flow battery or fuel cell suppliers worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Stryten Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most redox flow battery or fuel cell suppliers?

London leads with 3 company records, followed by Shenzhen (3) and Alpharetta (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 686 professional contacts with verified work emails tracked across these 109 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.