Company lists · Data refreshed September 2026
Top 23 Fuel cell energy systems integrators based in Germany
RevenueBase identified 46 fuel cell energy systems integrators headquartered in Germany as of September 2026 and tracks 1,254 professional contacts across them, including 478 with verified work emails and 33 with mobile numbers. Ulm is the largest hub.
This list covers fuel cell energy systems integrators 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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.
The 23 largest fuel cell energy systems integrators based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 198 | ||||
“Greenlight Innovation is the leading global supplier of testing and manufacturing solutions for hydrogen fuel cells, electrolysers, and lithium batterie packs.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | Powercell GroupStrong evidence | 149 | |||
“PowerCell develops and produces hydrogen electric fuel cell stacks and systems with a uniquely high power density, targeting applications in the aviation, marine, power…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 125 | ||||
“EKPO Fuel Cell Technologies is a leading joint venture in the field of development and large-scale production of fuel cell stacks for CO2-neutral mobility.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | ReverionIndirect evidence | 112 | |||
“As spin-off from the TU Munich, we're a highly tech-driven climate startup paving the way to 100% renewable, decarbonized future by making the most of biogas.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 102 | ||||
“power for energy SMA Altenso GmbH is a wholly owned subsidiary of SMA Solar Technology AG.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 91 | ||||
“The future can only be influenced if we lay the foundation for it today.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | Proton Motor Fuel Cell GmbhPartial evidence | 42 | |||
“Proton Motor is a German GmbH which is owned a 100% by the holding Proton Motor Power Systems Plc Proton Motor Power Systems Plc is listed at the London Stock Exchange (AIM…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 37 | ||||
“We develop and manufacture market-ready, digitally connected fuel cell systems for industrial applications such as intralogistics.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 36 | ||||
“CUBE CONCEPTS GmbH – Systementwickler für integrierte Energiesysteme Wir entwickeln und realisieren schlüsselfertige ganzheitliche Energiesysteme für Industrie- und…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 19 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 11 | ||||
“revotec energy ist ein führender Anbieter von Solaranlagen in Baden-Württemberg installiert auf Industrie- und Gewerbeimmobilien sowie Gebäuden von Kommunen und Vereinen.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 | ||||
“DILICO Engineering develops measurement and diagnostic solutions for fuel cells and electrolysers.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | Solydera DeutschlandStrong evidence | 8 | |||
“Die SolydEra GmbH ist eines der weltweit führenden Unternehmen im Bereich der Hochtemperatur-Brennstoffzellen-Technologie (SOFC, Solid Oxide Fuel Cells).” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | NEW Enerday GmbhPartial evidence | 6 | |||
“NEW ENERDAY was founded as a management-buy-out of an experienced development team by Dr.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 | ||||
“Covalion is a spin-off for storage technologies, renewable energy and industrial services of global nuclear technology company Framatome.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 | ||||
“Entwicklung, Integration und Vertrieb: Energiespeicher und -Management an Bord Nicht irgendeine Lösung – Deine Lösung An Bord herrschen besondere Bedingungen: Die Bedürfnisse sind…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 | ||||
“Innovationskraft aus Deutschland Die FCP GmbH hat ihren Sitz in Chemnitz, Sachsen.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 | ||||
“We design, plan, construct and maintain systems for environmentally friendly energy supply based on hydrogen and fuel cell technology.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | Koldehoff. Effiziente EnergietechnikPartial evidence | 2 | |||
“Wir von Koldehoff sind Ihr zuverlässiger Partner für effiziente Energietechnik: für den sinnvollen Einsatz von Kraft-Wärme-Kopplung (KWK), Brennstoffzelle, Photovoltaik, Batterie-…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | BSZ Netz GmbhIndirect evidence | 2 | |||
“Wir gestalten die Zukunft der autarken Stromversorgung.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 | ||||
“Enviro-Solargiga ist ein führendes Unternehmen in der Planung und Errichtung von Photovoltaikanlagen für Gewerbedächer und Freiflächen in jeglicher Größe.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | SolarpionierePartial evidence | 1 | |||
“Die Solarpioniere Energy GmbH installiert ganzheitliche & nachhaltige Energielösungen für Industrie- und Gewerbe.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 23 of 46 fuel cell energy systems integrators based in Germany
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Fuel cell energy systems integrators based in Germany at a glance
As of Sep 3, 2026Companies by employee count
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 fuel cell energy systems integrators, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Germany whose own description of what they do matches “fuel cell energy systems integrators”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among fuel cell energy systems integrators, 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 an evidence 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, 478 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 3, 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
How many fuel cell energy systems integrators are there based in Germany?
RevenueBase identified 46 fuel cell energy systems integrators 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?
Greenlight Innovation Corp, headquartered in Landstuhl, tops this list with the largest team on record.
Which city has the most fuel cell energy systems integrators?
Ulm leads with 2 headquartered companies, followed by Aachen (2) and Berlin (2).
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 478 verified decision-maker contacts tracked across these 46 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 3, 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.
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