Company lists · Data refreshed October 2026

Top 25 Electrolyzers suppliers worldwide

RevenueBase identified 696 company matches for electrolyzers suppliers worldwide as of October 2026 and tracks 11,562 professional contacts across them, including 4,296 with verified work emails. India is the largest market and Chennai the largest hub.

This list covers company matches for electrolyzers 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 25, 2026. Country and city lists for electrolyzers suppliers follow the table.

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 25, 2026 How this list was built
696Companies
11,562Contacts tracked
4,296Verified emails
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The 25 largest electrolyzers suppliers worldwide

Ranked by team size
Top 25 of 696 company matches for electrolyzers suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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 matchMilan, ItalyHQ recorded Oct 25, 20261,001-5,0001,171 contacts →

Exact match

“Industrie De Nora S.p.A.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2Exact matchDortmund, GermanyHQ recorded Oct 25, 20261,001-5,000719 contacts →

Exact match

“thyssenkrupp nucera offers world-leading technologies for high-efficiency electrolysis plants.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3Exact matchFremont, United StatesHQ recorded Oct 25, 2026501-1,000529 contacts →

Exact match

“Ohmium's mission is to accelerate the adoption of green hydrogen to decarbonize hard-to-abate sectors and enable a low-carbon future.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4Exact matchDresden, GermanyHQ recorded Oct 25, 2026501-1,000447 contacts →

Exact match

“Established in 2010 and based in Dresden, Germany, Sunfire is a world-leading industrial electrolysis company with two differentiated technologies.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5Exact matchAugsburg, GermanyHQ recorded Oct 25, 2026501-1,000333 contacts →

Exact match

“As a technological pioneer, Quest One develops and produces innovative PEM electrolyzers and electrolyzer stacks.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6Exact matchSheffield, United KingdomHQ recorded Oct 25, 2026201-500298 contacts →

Exact match

“ITM Power was founded in and ITM Power plc was admitted to the AIM market of the London Stock Exchange in 2004.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7Exact matchOslo, NorwayHQ recorded Oct 25, 2026201-500291 contacts →

Exact match

“Nel has a history tracing back to 1927 and is today a leading pure play hydrogen electrolyser technology company with a global presence.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8Exact matchDevens, MA, United StatesHQ recorded Oct 25, 2026201-500285 contacts →

Exact match

“Electric Hydrogen manufactures, delivers and commissions the world’s most powerful electrolyzers to make clean hydrogen projects economically viable today.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9Exact matchBurnaby, BC, CanadaHQ recorded Oct 25, 2026201-500169 contacts →

Exact match

“Greenlight Innovation is the leading global supplier of testing and manufacturing solutions for hydrogen fuel cells, electrolysers, and lithium batterie packs.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10Exact matchSaerbeck, ItalyHQ recorded Oct 25, 2026201-500168 contacts →

Exact match

“Enapter develops and manufactures AEM Electrolysers – disruptive devices producing green hydrogen to replace fossil fuels.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11Exact matchBenicia, CA, United StatesHQ recorded Oct 25, 202651-200162 contacts →

Exact match

“Serving critical infrastructure markets, RIX Industries is a global leader in the design, development, and manufacturing of hydrogen and gas generation systems, precision high…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12Exact matchLes Ulis, FranceHQ recorded Oct 25, 202651-200144 contacts →

Exact match

“ELOGEN is a technology provider specialized in the design, the manufacturing and the maintenance of Hydrogen generators using water electrolysis, based on Proton Exchange Membrane…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13Exact matchWollongong, AustraliaHQ recorded Oct 25, 202611-50124 contacts →

Exact match

“Our mission is to accelerate the world’s shift away from fossil fuels to green hydrogen by delivering the world’s best electrolyser.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14Exact matchSegrate, ItalyHQ recorded Oct 25, 202651-200117 contacts →

Exact match

“FRIEM is an Italian company founded in 1950, specialized in high-power energy conversion systems for industrial applications and the energy transition.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15Exact matchHunt Valley, MD, United StatesHQ recorded Oct 25, 202651-200116 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16Exact matchArapongas, BrazilHQ recorded Oct 25, 202651-200114 contacts →

Exact match

“Hidrogeron has over two decades of experience in the development, manufacture and application of mixed oxidants including sodium hypochlorite, hydrogen peroxide and other chemical…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17Exact matchCaesarea, TürkiyeHQ recorded Oct 25, 202651-200111 contacts →

Exact match

“H2Pro is on a mission to enable affordable green hydrogen at scale by providing the world with the leading next generation electrolyzer.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18Exact matchBelo Horizonte, United StatesHQ recorded Oct 25, 202651-200105 contacts →

Exact match

“NEUMAN & ESSER is a reliable partner to the industry, driving both the energy transition and the circular economy with integrated solutions for the energy infrastructure of…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19Exact matchFoussemagne, FranceHQ recorded Oct 25, 2026201-500100 contacts →

Exact match

“As a leading "pure player" McPhy designs and manufactures a range of hydrogen production and valorization equipment, including electrolyzers built on robust and proven technology…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20Exact matchBurnaby, BC, CanadaHQ recorded Oct 25, 202611-5092 contacts →

Exact match

“For over four decades, Japan-based Enagic International has been the leading manufacturer of alkaline ionizers and water filtration machines in the world.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21Exact matchVadodara, IndiaHQ recorded Oct 25, 202651-20091 contacts →

Exact match

“Incepted in 2003, Airro Engineering Co.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22Exact matchNew Delhi, IndiaHQ recorded Oct 25, 202651-20090 contacts →

Exact match

“MVS Engineering is the leading supplier of OnSite Nitrogen, Oxygen and Hydrogen gas generation solutions.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23Exact matchGoslar, GermanyHQ recorded Oct 25, 202651-20087 contacts →

Exact match

“With over 50 years of experience in the electrification, automation, and digitalization of industrial processes, FEST GmbH develops, manufactures, and supplies state-of-the-art…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24Exact matchChennai, IndiaHQ recorded Oct 25, 202651-20079 contacts →

Exact match

“BGR Tech Ltd.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25Exact matchLiivamäe Küla, EstoniaHQ recorded Oct 25, 202651-20075 contacts →

Exact match

“Elcogen develops and supplies a proprietary solid oxide technology platform that operates in both fuel cell (SOFC) and electrolysis (SOEC) modes, enabling affordable green…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase

Showing 25 of 696 electrolyzers suppliers worldwide

See the full list, filter by size, metro and specialty, and access 4,296 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrolyzers suppliers worldwide at a glance

As of Oct 25, 2026
37.2%Verified-email coverage
16.6Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Chennai
Oct 25, 2026Page data refreshed

Companies by employee count

1-10
278
11-50
238
51-200
116
201-500
42
501-1,000
7
1,001-5,000
4
5,001-10,000
1
10001+
7

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for electrolyzers suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “electrolyzers 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 4,296 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 25, 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.

Electrolyzers suppliers by location

4 lists · largest first

Every Electrolyzers suppliers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “electrolyzers suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrolyzers suppliers are there worldwide?

RevenueBase identified 696 company matches for electrolyzers 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?

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

Which country has the most electrolyzers suppliers?

India leads with 102 companies, followed by the United States (83) and Germany (45). Every electrolyzers suppliers list by country and city is linked on this page.

Which city has the most electrolyzers suppliers?

Chennai leads with 11 company records, followed by New Delhi (9) and Bangalore (7).

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 4,296 professional contacts with verified work emails tracked across these 696 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 25, 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.