Company lists · Data refreshed September 2026

Top 25 Renewable hydrogen producers worldwide

Name: Renewable hydrogen producers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 283 companies tracked

RevenueBase identified 283 renewable hydrogen producers worldwide as of September 2026 and tracks 8,290 professional contacts across them, including 3,751 with verified work emails and 0 with mobile numbers. The United States is the largest market and Madrid the largest hub.

This list covers renewable hydrogen producers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026. Country and city lists for renewable hydrogen producers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

283Companies

8,290Contacts tracked

3,751Verified emails

0Mobile numbers

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The 25 largest renewable hydrogen producers worldwide

Ranked by team size

Top 25 of 283 renewable hydrogen producers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable hydrogen producers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Plug Power	Partial evidence	Latham, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,037 contacts →
	Partial evidence “Plug is building an end-to-end green hydrogen ecosystem, from production, storage and delivery to energy generation, to help its customers meet their business goals and…” Source: RevenueBase Database · checked Sep 17, 2026
2	CVE Changing Visions Of Energy	Strong evidence	France, United StatesHQ checked Sep 17, 2026	201-500	455 contacts →
	Strong evidence “Created at the end of 2009, CVE is a French multi-energy, multi-country renewable energy producer.” Source: RevenueBase Database · checked Sep 17, 2026
3	Sunfire	Indirect evidence	Dresden, GermanyHQ checked Sep 17, 2026	501-1,000	427 contacts →
	Indirect evidence “Established in 2010 and based in Dresden, Germany, Sunfire is a world-leading industrial electrolysis company with two differentiated technologies.” Source: RevenueBase Database · checked Sep 17, 2026
4	Quest ONE	Partial evidence	Augsburg, GermanyHQ checked Sep 17, 2026	501-1,000	378 contacts →
	Partial evidence “As a technological pioneer, Quest One develops and produces innovative PEM electrolyzers and electrolyzer stacks.” Source: RevenueBase Database · checked Sep 17, 2026
5	Electric Hydrogen	Partial evidence	Devens, MA, United StatesHQ checked Sep 17, 2026	201-500	346 contacts →
	Partial evidence “Electric Hydrogen manufactures, delivers and commissions the world’s most powerful electrolyzers to make clean hydrogen projects economically viable today.” Source: RevenueBase Database · checked Sep 17, 2026
6	LHYFE	Indirect evidence	Nantes, FranceHQ checked Sep 17, 2026	51-200	210 contacts →
	Indirect evidence “Lhyfe is a certain idea of the world, a world in which we can meet our energy needs by being part of the natural ecosystem rather than trying to dominate it.” Source: RevenueBase Database · checked Sep 17, 2026
7	Enapter	Partial evidence	Saerbeck, ItalyHQ checked Sep 17, 2026	201-500	168 contacts →
	Partial evidence “Enapter develops and manufactures AEM Electrolysers – disruptive devices producing green hydrogen to replace fossil fuels.” Source: RevenueBase Database · checked Sep 17, 2026
8	MCPHY	Partial evidence	Foussemagne, FranceHQ checked Sep 17, 2026	201-500	145 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
9	Genvia	Indirect evidence	Béziers, FranceHQ checked Sep 17, 2026	51-200	144 contacts →
	Indirect evidence “Today, and for decades, global warming is a reality.” Source: RevenueBase Database · checked Sep 17, 2026
10	Geopura	Indirect evidence	Newcastle, United KingdomHQ checked Sep 17, 2026	51-200	137 contacts →
	Indirect evidence “GeoPura has a totally zero emissions answer to how we’re going to generate and distribute the vast amount of energy required to decarbonise our global economies.” Source: RevenueBase Database · checked Sep 17, 2026
11	Oneh2, INC	Indirect evidence	Longview, NC, United StatesHQ checked Sep 17, 2026	51-200	130 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
12	Hynamics	Partial evidence	Paris, FranceHQ checked Sep 17, 2026	51-200	127 contacts →
	Partial evidence “Hynamics est la filiale 100% du groupe EDF qui produit et commercialise de l'hydrogène bas carbone; elle adresse les deux marchés les plus émetteurs de CO2 que sont l’industrie et…” Source: RevenueBase Database · checked Sep 17, 2026
13	HDF Energy	Partial evidence	Blanquefort, FranceHQ checked Sep 17, 2026	51-200	123 contacts →
	Partial evidence “HDF Energy is a leading global player in the hydrogen industry, dedicated to developing large-scale hydrogen infrastructure and advanced multi-megawatt fuel cell technology.” Source: RevenueBase Database · checked Sep 17, 2026
14	H2apex	Indirect evidence	Rostock-laage, GermanyHQ checked Sep 17, 2026	51-200	99 contacts →
	Indirect evidence “About the company H2APEX Group SCA: H2APEX Group SCA is a listed holding company and the parent company of H2APEX Group, which in its core business develops, builds and sells or…” Source: RevenueBase Database · checked Sep 17, 2026
15	Fest Gmbh	Indirect evidence	Goslar, GermanyHQ checked Sep 17, 2026	51-200	85 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
16	Verdagy	Partial evidence	Moss Landing, CA, United StatesHQ checked Sep 17, 2026	51-200	76 contacts →
	Partial evidence “Verdagy is innovating advanced electrolysis technology for the large-scale production of clean hydrogen.” Source: RevenueBase Database · checked Sep 17, 2026
17	Verso Energy	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	11-50	73 contacts →
	Indirect evidence “Verso Energy est spécialisée dans le développement, l’ingénierie, le financement, la construction et l’exploitation d’installations de production d’énergies renouvelables…” Source: RevenueBase Database · checked Sep 17, 2026
18	Hydrogenics	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	201-500	71 contacts →
	Partial evidence “SHIFT POWER ENERGIZE YOUR WORLD Hydrogenics, a Cummins company, is an industry leader in designing, manufacturing, building and installing industrial and commercial Hydrogen…” Source: RevenueBase Database · checked Sep 17, 2026
19	Univergy Solar	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	71 contacts →
	Indirect evidence “Univergy Solar es una empresa hispano-japonesa especializada en el desarrollo y construcción de proyectos de energía solar, eólica y de hidrógeno verde, incluyendo soluciones de…” Source: RevenueBase Database · checked Sep 17, 2026
20	Next Hydrogen	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	11-50	62 contacts →
	Partial evidence “Next Hydrogen water electrolysers provide utility-scale clean hydrogen for energy storage, economically.” Source: RevenueBase Database · checked Sep 17, 2026
21	H2b2 Electrolysis Technologies	Partial evidence	Dos Hermanas, SpainHQ checked Sep 17, 2026	11-50	60 contacts →
	Partial evidence “H2B2 is a technology-based company that promotes, develops, finances, designs, integrates, builds, operates and maintains systems based on electrolyzers for hydrogen production…” Source: RevenueBase Database · checked Sep 17, 2026
22	Bayotech Hydrogen	Partial evidence	Albuquerque, NM, United StatesHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “BayoTech is committed to addressing the global need for reliable, cost-effective and low-carbon hydrogen.” Source: RevenueBase Database · checked Sep 17, 2026
23	Hy2gen	Indirect evidence	Wiesbaden, GermanyHQ checked Sep 17, 2026	11-50	52 contacts →
	Indirect evidence “Hy2gen is a world leading company in developing, financing, building, and operating plants for RFNBO production.” Source: RevenueBase Database · checked Sep 17, 2026
24	Clean Power Hydrogen PLC	Partial evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	51-200	50 contacts →
	Partial evidence “For too long, hydrogen was held back.” Source: RevenueBase Database · checked Sep 17, 2026
25	Fourier	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 17, 2026	n/a	45 contacts →
	Partial evidence “Fourier is working on making on-site Hydrogen universally accessible.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable hydrogen producers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names renewable hydrogen producers.
Partial evidence: Its own public description names part of renewable hydrogen producers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable hydrogen producers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 283 renewable hydrogen producers worldwide

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Renewable hydrogen producers worldwide at a glance

As of Sep 17, 2026

45.2%Verified-email coverage

29.3Average contacts per company

11-50Median size (employees)

4.6%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

141

11-50

51-200

201-500

501-1,000

1,001-5,000

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among renewable hydrogen producers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: 6 countries, largest first: the United States, Germany, the United Kingdom, Spain, France, Canada. Country and city lists for renewable hydrogen producers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “renewable hydrogen producers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names renewable hydrogen producers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among renewable hydrogen producers, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,751 across the full list. 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 September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Renewable hydrogen producers by location

6 lists · largest first

Every Renewable hydrogen producers 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names renewable hydrogen producers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many renewable hydrogen producers are there worldwide?

RevenueBase identified 283 renewable hydrogen producers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Plug Power, headquartered in Latham, tops this list with the largest team on record.

Which country has the most renewable hydrogen producers?

The United States leads with 83 companies, followed by Germany (65) and the United Kingdom (43). Every renewable hydrogen producers list by country and city is linked on this page.

Which city has the most renewable hydrogen producers?

Madrid leads with 13 headquartered companies, followed by London (8) and Toronto (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,751 verified decision-maker contacts tracked across these 283 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 Smart Search, 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.