Company lists · Data refreshed October 2026

Top 25 Electrolysis machinery suppliers worldwide

RevenueBase identified 93 company matches for electrolysis machinery suppliers worldwide as of October 2026 and tracks 2,092 professional contacts across them, including 889 with verified work emails. Ahmedabad is the largest hub.

This list covers company matches for electrolysis machinery 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.

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
93Companies
2,092Contacts tracked
889Verified emails
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The 25 largest electrolysis machinery suppliers worldwide

Ranked by team size
Top 25 of 93 company matches for electrolysis machinery 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact matchDos Hermanas, SpainHQ recorded Oct 25, 202611-5062 contacts →

Exact match

“H2B2 is a technology-based company that promotes, develops, finances, designs, integrates, builds, operates and maintains systems based on electrolyzers for hydrogen production…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8Exact matchTallinn, EstoniaHQ recorded Oct 25, 202651-20058 contacts →

Exact match

“Stargate Hydrogen is a European electrolyser technology company developing industrial hydrogen production systems for infrastructure and energy resilience projects.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9Exact matchPorsgrunn/skien, NorwayHQ recorded Oct 25, 2026201-50056 contacts →

Exact match

“HydrogenPro aims to become a world leading designer and supplier of alkaline electrolyser technology and systems to meet the highest standard for safety, reliability and long…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10Exact matchArnhem, NetherlandsHQ recorded Oct 25, 202611-5051 contacts →

Exact match

“HyGear makes reliable, affordable, on-site and on-demand (bio)hydrogen accessible.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11Exact matchDoncaster, United KingdomHQ recorded Oct 25, 202611-5045 contacts →

Exact match

“The technology to liberate hydrogen.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12Exact matchBangalore, IndiaHQ recorded Oct 25, 202611-5045 contacts →

Exact match

“Newtrace is a deep-tech OEM building end-to-end solutions across the electrolyzer value chain, to deliver the lowest capex, the most efficient hydrogen production and a…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13Exact matchAhmedabad, IndiaHQ recorded Oct 25, 202651-20034 contacts →

Exact match

“Advait Greenergy Private Limited (AGPL) is a multidisciplinary clean energy engineering company delivering integrated solutions across Green Hydrogen, Electrolyzers, Solar EPC…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14Exact matchTorrent, SpainHQ recorded Oct 25, 2026n/a32 contacts →

Exact match

“KERIONICS is a technology-based company specialized in the development, manufacturing, and commercialization of key components for high-temperature electrolyzers, focusing on SOEL…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15Exact matchEmeryville, CA, United StatesHQ recorded Oct 25, 202611-5024 contacts →

Exact match

“Aepnus Technology is reinventing chemical manufacturing to eliminate waste and secure domestic supply chains.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16Exact matchParis, FranceHQ recorded Oct 25, 202611-5024 contacts →

Exact match

“We are a team of hydrogen technologies professionals dedicated to the green hydrogen economy.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17Exact matchHefei, ChinaHQ recorded Oct 25, 2026201-50021 contacts →

Exact match

“As a subsidiary of Sungrow (Stock Code: 300274), Sungrow Hydrogen specializes in water electrolysis technology for hydrogen production.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18Exact matchGdańsk, PolandHQ recorded Oct 25, 202611-5020 contacts →

Exact match

“Exion Hydrogen develops and manufactures world class water electrolyzers.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Oct 25, 202651-20013 contacts →

Exact match

“Hygreen Energy is a world leading electrolyzer manufacturer comprehensive solutions to hydrogen production.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20Exact matchToronto, ON, CanadaHQ recorded Oct 25, 202611-5013 contacts →

Exact match

“Cipher Neutron is a clean-energy technology company advancing high-efficiency Anion Exchange Membrane (AEM) electrolysis for scalable green hydrogen production.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Oct 25, 202651-20010 contacts →

Exact match

“Splitwaters is the leading electrolyzer manufacturer and engineering, procurement, and construction (EPC) company in Houston, TX, and has revolutionized the way green hydrogen…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22Exact matchBrescia, ItalyHQ recorded Oct 25, 202611-509 contacts →

Exact match

“Progettazione e costruzione di impianti automatici elettrolitici ed elettrochimici”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23Exact matchFigeac, FranceHQ recorded Oct 25, 202611-507 contacts →

Exact match

“Spécialiste en Rechargement électrolytique : Electrolyse sélective ou Electrolyse au tampon - Chromage- Métallisation - Projection Plasma - Projection HVOF - Projection HP HVOF -…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24Exact matchManunda, AustraliaHQ recorded Oct 25, 202611-507 contacts →

Exact match

“Hydrogen Technologies has been described as a market leader in the industry.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25Exact matchHontoria, SpainHQ recorded Oct 25, 202611-507 contacts →

Exact match

“H2Greem is a leading European technology company and manufacturer of next-generation electrolyser solutions based on proton exchange membrane (PEM) technology.”

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

Showing 25 of 93 electrolysis machinery suppliers worldwide

See the full list, filter by size, metro and specialty, and access 889 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrolysis machinery suppliers worldwide at a glance

As of Oct 25, 2026
42.5%Verified-email coverage
22.5Average contacts per company
11-50Median size (employees)
2.2%Largest-city concentration · Ahmedabad
Oct 25, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
37
51-200
19
201-500
10
501-1,000
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 93 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 “electrolysis machinery 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 889 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.

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

How many electrolysis machinery suppliers are there worldwide?

RevenueBase identified 93 company matches for electrolysis machinery 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?

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

Which city has the most electrolysis machinery suppliers?

Ahmedabad leads with 2 company records, followed by Chennai (2) and Suzhou (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 889 professional contacts with verified work emails tracked across these 93 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.