Company lists · Data refreshed September 2026

Top 25 Sustainable hydrogen manufacturers worldwide

Name: Sustainable hydrogen manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 693 companies tracked

RevenueBase identified 693 sustainable hydrogen manufacturers worldwide as of September 2026 and tracks 29,966 professional contacts across them, including 11,678 with verified work emails and 0 with mobile numbers. The United States is the largest market and Madrid the largest hub.

This list covers sustainable hydrogen manufacturers 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 18, 2026. Country and city lists for sustainable hydrogen manufacturers 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 18, 2026 86% judged on-target in blind review

693Companies

29,966Contacts tracked

11,678Verified emails

0Mobile numbers

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The 25 largest sustainable hydrogen manufacturers worldwide

Ranked by team size

Top 25 of 693 sustainable hydrogen manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable hydrogen manufacturers: 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	RENEW	Indirect evidence	Gurugram, IndiaHQ checked Sep 18, 2026	1,001-5,000	4,340 contacts →
	Indirect evidence “ReNew is a leading decarbonisation solutions provider and the first Indian clean energy company to list on Nasdaq (Nasdaq: RNW).” Source: RevenueBase Database · checked Sep 18, 2026
2	RES	Partial evidence	Kings Langley, United KingdomHQ checked Sep 18, 2026	1,001-5,000	3,721 contacts →
	Partial evidence “RES is the world’s largest independent renewable energy company, working across 24 countries and active in wind, solar, energy storage, green hydrogen, transmission, and…” Source: RevenueBase Database · checked Sep 18, 2026
3	Greenko Group	Indirect evidence	Hyderabad, IndiaHQ checked Sep 18, 2026	1,001-5,000	2,578 contacts →
	Indirect evidence “Greenko, is one of the World’s leading Energy Transition and Decarbonization solutions company, with an installed Renewable Energy capacity of ~7.5 GW across Wind, Solar and Hydro…” Source: RevenueBase Database · checked Sep 18, 2026
4	Bloom Energy	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 18, 2026	1,001-5,000	2,221 contacts →
	Indirect evidence “Bloom Energy empowers businesses and communities to responsibly take charge of their energy.” Source: RevenueBase Database · checked Sep 18, 2026
5	Plug Power	Partial evidence	Latham, NY, United StatesHQ checked Sep 18, 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 18, 2026
6	ABO Energy	Indirect evidence	Wiesbaden, GermanyHQ checked Sep 18, 2026	1,001-5,000	785 contacts →
	Indirect evidence “Founded in 1996, ABO Energy (fomerly known as ABO Wind) is among Europe’s leading developers of renewable energy projects.” Source: RevenueBase Database · checked Sep 18, 2026
7	Thyssenkrupp Nucera	Indirect evidence	Dortmund, GermanyHQ checked Sep 18, 2026	1,001-5,000	691 contacts →
	Indirect evidence “thyssenkrupp nucera offers world-leading technologies for high-efficiency electrolysis plants.” Source: RevenueBase Database · checked Sep 18, 2026
8	Q Energy	Indirect evidence	Berlin, GermanyHQ checked Sep 18, 2026	201-500	565 contacts →
	Indirect evidence “Q ENERGY is Europe’s 360° green energy company.” Source: RevenueBase Database · checked Sep 18, 2026
9	Ohmium	Partial evidence	Fremont, United StatesHQ checked Sep 18, 2026	501-1,000	547 contacts →
	Partial evidence “Ohmium's mission is to accelerate the adoption of green hydrogen to decarbonize hard-to-abate sectors and enable a low-carbon future.” Source: RevenueBase Database · checked Sep 18, 2026
10	Hero Future Energies	Indirect evidence	New Delhi, IndiaHQ checked Sep 18, 2026	501-1,000	544 contacts →
	Indirect evidence “Hero Future Energies (An ISO 27001:2022 Certified Company) is a leading global renewable energy company and part of the illustrious Hero Group, one of the most respected business…” Source: RevenueBase Database · checked Sep 18, 2026
11	GP Joule	Indirect evidence	Reußenköge, GermanyHQ checked Sep 18, 2026	501-1,000	480 contacts →
	Indirect evidence “GP JOULE is an integrated energy supplier that covers the entire energy value chain, from generation to use – and from consulting and financing through to project planning…” Source: RevenueBase Database · checked Sep 18, 2026
12	CVE Changing Visions Of Energy	Indirect evidence	France, United StatesHQ checked Sep 18, 2026	201-500	455 contacts →
	Indirect evidence “Created at the end of 2009, CVE is a French multi-energy, multi-country renewable energy producer.” Source: RevenueBase Database · checked Sep 18, 2026
13	Sunfire	Indirect evidence	Dresden, GermanyHQ checked Sep 18, 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 18, 2026
14	Quest ONE	Indirect evidence	Augsburg, GermanyHQ checked Sep 18, 2026	501-1,000	378 contacts →
	Indirect evidence “As a technological pioneer, Quest One develops and produces innovative PEM electrolyzers and electrolyzer stacks.” Source: RevenueBase Database · checked Sep 18, 2026
15	Electric Hydrogen	Strong evidence	Devens, MA, United StatesHQ checked Sep 18, 2026	201-500	346 contacts →
	Strong 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 18, 2026
16	NEL Hydrogen	Partial evidence	Oslo, NorwayHQ checked Sep 18, 2026	201-500	327 contacts →
	Partial evidence “Nel has a history tracing back to 1927 and is today a leading pure play hydrogen electrolyser technology company with a global presence.” Source: RevenueBase Database · checked Sep 18, 2026
17	ITM Power	Indirect evidence	Sheffield, United KingdomHQ checked Sep 18, 2026	201-500	285 contacts →
	Indirect evidence “ITM Power was founded in and ITM Power plc was admitted to the AIM market of the London Stock Exchange in 2004.” Source: RevenueBase Database · checked Sep 18, 2026
18	Truere	Indirect evidence	Noida Gautam Bauddha Nagar, IndiaHQ checked Sep 18, 2026	201-500	226 contacts →
	Indirect evidence “TrueRE Oriana Power is one of India’s largest and fully integrated renewable energy companies delivering clean-energy solutions across the value chain, from generation and…” Source: RevenueBase Database · checked Sep 18, 2026
19	TCI Gecomp	Indirect evidence	Almería, SpainHQ checked Sep 18, 2026	501-1,000	216 contacts →
	Indirect evidence “TCI GECOMP es una empresa de Ingeniería y Construcción especializada en Energías renovables e Hidrógeno Verde con presencia en España, Perú, Chile y Argentina.” Source: RevenueBase Database · checked Sep 18, 2026
20	LHYFE	Indirect evidence	Nantes, FranceHQ checked Sep 18, 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 18, 2026
21	Enapter	Strong evidence	Saerbeck, ItalyHQ checked Sep 18, 2026	201-500	168 contacts →
	Strong evidence “Enapter develops and manufactures AEM Electrolysers – disruptive devices producing green hydrogen to replace fossil fuels.” Source: RevenueBase Database · checked Sep 18, 2026
22	AFC Energy	Partial evidence	Cranleigh, United KingdomHQ checked Sep 18, 2026	51-200	149 contacts →
	Partial evidence “AFC Energy is the leading provider of Hydrogen fuel cell technology to generate clean off-grid energy.” Source: RevenueBase Database · checked Sep 18, 2026
23	Radiance Renewables	Indirect evidence	Mumbai, IndiaHQ checked Sep 18, 2026	51-200	146 contacts →
	Indirect evidence “Radiance Renewables, backed by Eversource Capital, specialises in delivering comprehensive green solutions tailored for commercial and industrial clients (C&I).” Source: RevenueBase Database · checked Sep 18, 2026
24	MCPHY	Strong evidence	Foussemagne, FranceHQ checked Sep 18, 2026	201-500	145 contacts →
	Strong 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 18, 2026
25	Genvia	Indirect evidence	Béziers, FranceHQ checked Sep 18, 2026	51-200	144 contacts →
	Indirect evidence “Today, and for decades, global warming is a reality.” Source: RevenueBase Database · checked Sep 18, 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: sustainable hydrogen manufacturers. 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 sustainable hydrogen manufacturers.
Partial evidence: Its own public description names part of sustainable hydrogen manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable hydrogen manufacturers. 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 693 sustainable hydrogen manufacturers worldwide

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Sustainable hydrogen manufacturers worldwide at a glance

As of Sep 18, 2026

39.0%Verified-email coverage

43.2Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · Madrid

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

361

11-50

218

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 sustainable hydrogen manufacturers, 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: 11 countries, largest first: the United States, Germany, the United Kingdom, India, Spain, France, Australia, the Netherlands, Canada, Italy and 1 more. Country and city lists for sustainable hydrogen manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “sustainable hydrogen manufacturers”. 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 sustainable hydrogen manufacturers), 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 sustainable hydrogen manufacturers, 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, 11,678 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 18, 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.

Sustainable hydrogen manufacturers by location

11 lists · largest first

Every Sustainable hydrogen manufacturers 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 sustainable hydrogen manufacturers, 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 sustainable hydrogen manufacturers are there worldwide?

RevenueBase identified 693 sustainable hydrogen manufacturers 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?

RENEW, headquartered in Gurugram, tops this list with the largest team on record.

Which country has the most sustainable hydrogen manufacturers?

The United States leads with 138 companies, followed by Germany (100) and the United Kingdom (91). Every sustainable hydrogen manufacturers list by country and city is linked on this page.

Which city has the most sustainable hydrogen manufacturers?

Madrid leads with 21 headquartered companies, followed by London (20) and Berlin (11).

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 11,678 verified decision-maker contacts tracked across these 693 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 18, 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.