Company lists · Data refreshed September 2026

Top 25 Sustainable hydrogen manufacturers based in Germany

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

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 100 companies tracked

RevenueBase identified 100 sustainable hydrogen manufacturers headquartered in Germany as of September 2026 and tracks 4,389 professional contacts across them, including 2,123 with verified work emails. Berlin is the largest hub.

This list covers sustainable hydrogen manufacturers headquartered in Germany, 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.

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

100Companies

4,389Contacts tracked

2,123Verified emails

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The 25 largest sustainable hydrogen manufacturers based in Germany

Ranked by team size

Top 25 of 100 sustainable hydrogen manufacturers based in Germany, 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	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
2	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
3	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
4	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
5	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
6	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
7	H2apex	Indirect evidence	Rostock-laage, GermanyHQ checked Sep 18, 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 18, 2026
8	Fest Gmbh	Partial evidence	Goslar, GermanyHQ checked Sep 18, 2026	51-200	85 contacts →
	Partial 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 18, 2026
9	Greenlyte Carbon Technologies	Indirect evidence	Essen, GermanyHQ checked Sep 18, 2026	51-200	70 contacts →
	Indirect evidence “Greenlyte \| Liquefying renewable energy Greenlyte revolutionizes the energy infrastructure by turning renewable electricity, air and water into green molecules needed for the…” Source: RevenueBase Database · checked Sep 18, 2026
10	Hexagon Purus Weeze Gmbh	Indirect evidence	Weeze, GermanyHQ checked Sep 18, 2026	201-500	56 contacts →
	Indirect evidence “Hexagon Purus hat sich auf Leichtbaukomponenten und -systeme aus Faserverbundwerkstoffen spezialisiert und ist weltweit führend in Schlüsseltechnologien für emissionsfreie…” Source: RevenueBase Database · checked Sep 18, 2026
11	Hy2gen	Indirect evidence	Wiesbaden, GermanyHQ checked Sep 18, 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 18, 2026
12	Hh2e	Indirect evidence	Hamburg, GermanyHQ checked Sep 18, 2026	51-200	35 contacts →
	Indirect evidence “We have known about the negative impact of carbon emissions for years.” Source: RevenueBase Database · checked Sep 18, 2026
13	Wenger Engineering	Partial evidence	Ulm, GermanyHQ checked Sep 18, 2026	11-50	31 contacts →
	Partial evidence “Wenger Engineering from Ulm, Germany is a leading global technology developer for hydrogen technology, renewable energies and energy efficiency.” Source: RevenueBase Database · checked Sep 18, 2026
14	Ceh4 Technologies Gmbh	Indirect evidence	Celle, GermanyHQ checked Sep 18, 2026	51-200	26 contacts →
	Indirect evidence “Stell Dir vor, Du könntest Vorhandenes nutzen, um Neues zu schaffen.” Source: RevenueBase Database · checked Sep 18, 2026
15	H2 Core Systems Gmbh	Strong evidence	Heide, GermanyHQ checked Sep 18, 2026	11-50	22 contacts →
	Strong evidence “H2 Core Systems GmbH is a manufacturer of complete energy supply systems with hydrogen technology and was founded in October 2020 as a spin-off of the TC-Hydraulik Group, based in…” Source: RevenueBase Database · checked Sep 18, 2026
16	Siqens Gmbh	Partial evidence	München, GermanyHQ checked Sep 18, 2026	11-50	21 contacts →
	Partial evidence “Since 2012, SIQENS has been pioneering the development of innovative solutions for hydrogen infrastructure - wherever it is needed.” Source: RevenueBase Database · checked Sep 18, 2026
17	WEW Gmbh	Partial evidence	Dortmund, GermanyHQ checked Sep 18, 2026	11-50	19 contacts →
	Partial evidence “We make green hydrogen possible!” Source: RevenueBase Database · checked Sep 18, 2026
18	Argo-Anleg Gmbh	Indirect evidence	Wesel, GermanyHQ checked Sep 18, 2026	11-50	19 contacts →
	Indirect evidence “Argo-Anleg GmbH is a medium-sized company that has specialized from an engineering office -focusing on special valve technology- to a worldwide recognized company with development…” Source: RevenueBase Database · checked Sep 18, 2026
19	H-Tec Systems	Partial evidence	Augsburg, GermanyHQ checked Sep 18, 2026	501-1,000	14 contacts →
	Partial evidence “H-TEC SYSTEMS stands for innovation, sustainability, and a green future.” Source: RevenueBase Database · checked Sep 18, 2026
20	BHYO	Indirect evidence	Ludwigshafen Am Rhein, GermanyHQ checked Sep 18, 2026	1-10	12 contacts →
	Indirect evidence “Wir sind ein Green Energy Startup, das ein Verfahren entwickelt hat, um organischen Wasserstoff aus lokal anfallenden biogenen Reststoffen in einem dezentralen, CO2-negativen…” Source: RevenueBase Database · checked Sep 18, 2026
21	Wind-Projekt Ingenieur- UND Projektentwicklungsgesellschaft MBH	Indirect evidence	Rostock, GermanyHQ checked Sep 18, 2026	11-50	11 contacts →
	Indirect evidence “We embrace green energy.” Source: RevenueBase Database · checked Sep 18, 2026
22	Kyros Hydrogen Solutions	Partial evidence	Neuhaus-schierschnitz, GermanyHQ checked Sep 18, 2026	11-50	10 contacts →
	Partial evidence “At Kyros Hydrogen Solutions, we offer full service, customizable hydrogen generation systems for applications in all areas of industry as well as mobility.” Source: RevenueBase Database · checked Sep 18, 2026
23	H2 Powercell Gmbh	Indirect evidence	Emsdetten, GermanyHQ checked Sep 18, 2026	11-50	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
24	Hypion Gmbh	Partial evidence	Kiel, GermanyHQ checked Sep 18, 2026	1-10	9 contacts →
	Partial evidence “Hypion GmbH was established in Heide, Schleswig-Holstein, under the motto “Pioneer for Integrated Hydrogen Economies.” The Regional Development Agency Heide, IPP Projects…” Source: RevenueBase Database · checked Sep 18, 2026
25	Cenmat	Indirect evidence	Stuttgart, GermanyHQ checked Sep 18, 2026	1-10	8 contacts →
	Indirect evidence “CENmat is an innovative and vertically integrated electrolyser company that delivers the most economical, efficient, and critical raw material free electrolyser for affordable and…” 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 100 sustainable hydrogen manufacturers based in Germany

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Sustainable hydrogen manufacturers based in Germany at a glance

As of Sep 18, 2026

48.4%Verified-email coverage

43.9Average contacts per company

11-50Median size (employees)

11.0%Largest-city concentration · Berlin

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 100 companies.

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.
What qualifies: Companies headquartered in Germany 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. Companies headquartered outside Germany are excluded even when they keep an office there.
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, 2,123 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.

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 based in Germany?

RevenueBase identified 100 sustainable hydrogen manufacturers headquartered in Germany 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?

ABO Energy, headquartered in Wiesbaden, tops this list with the largest team on record.

Which city has the most sustainable hydrogen manufacturers?

Berlin leads with 11 headquartered companies, followed by Hamburg (7) and Munchen (3).

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 2,123 verified decision-maker contacts tracked across these 100 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.