Company lists · Data refreshed September 2026

Top 25 Hydrogen energy companies based in the United Kingdom

RevenueBase identified 98 company matches for hydrogen energy companies associated with the United Kingdom as of September 2026 and tracks 1,800 professional contacts across them, including 665 with verified work emails. London is the largest hub.

This list covers company matches for hydrogen energy companies associated with the United Kingdom, 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 September 15, 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 Sep 15, 2026 How this list was built
98Companies
1,800Contacts tracked
665Verified emails
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The 25 largest hydrogen energy companies based in the United Kingdom

Ranked by team size
Top 25 of 98 company matches for hydrogen energy companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 15, 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 matchSheffield, United KingdomHQ recorded Sep 15, 2026201-500285 contacts →

Exact match

“ITM Power was founded in and ITM Power plc was admitted to the AIM market of the London Stock Exchange in 2004.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
2Exact matchNewcastle, United KingdomHQ recorded Sep 15, 202651-200137 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
3Exact matchStockport, United KingdomHQ recorded Sep 15, 2026201-500125 contacts →

Exact match

“Edina is an energy transition solutions provider for on-site generation using hydrogen-enabled MWM Gas Engines, HVO Standby Generation and Battery Energy Storage.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
4Exact matchStone, United KingdomHQ recorded Sep 15, 202651-20049 contacts →

Exact match

“We're focused on delivering products and solutions to the green energy industry with a strong focus on Hydrogen, Biomethane and Natural Gas.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
5Exact matchHungerford, United KingdomHQ recorded Sep 15, 202611-5040 contacts →

Exact match

“Fuel Cell Systems Ltd, a UK-based company with 15 years of expertise, specialises in fuel cell solutions and hydrogen refuelling systems.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
6Exact matchOxford, United KingdomHQ recorded Sep 15, 202651-20033 contacts →

Exact match

“Ryze Power provides complete solutions in the alternative fuels space as sectors transition towards net zero.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
7Exact matchEdinburgh, United KingdomHQ recorded Sep 15, 202611-5030 contacts →

Exact match

“Based in Scotland, Logan is a designer, supplier, and integrator of complete hydrogen production, refuelling, compression, storage, dispensing and fuel cell solutions.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
8Exact matchGlasgow, United KingdomHQ recorded Sep 15, 202651-20028 contacts →

Exact match

“Hydrogen Vehicle Systems Ltd is revolutionising the transportation industry by building hydrogen fuelled trucks of the future - TODAY!”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
9Exact matchLiverpool, United KingdomHQ recorded Sep 15, 202611-5025 contacts →

Exact match

“ULEMCo are pioneers of technologies that enable commercial vehicles to run off hydrogen.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
10Exact matchOxford, United KingdomHQ recorded Sep 15, 202611-5025 contacts →

Exact match

“Hygen is a leading developer, producer and asset owner of low-carbon hydrogen production facilities in the UK and Europe, focusing on the decarbonisation of mobility…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
11Exact matchEdinburgh, United KingdomHQ recorded Sep 15, 202611-5024 contacts →

Exact match

“Green Cat Hydrogen develops green hydrogen projects.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
12Exact matchStokesley, United KingdomHQ recorded Sep 15, 202611-5021 contacts →

Exact match

“Carlton Power Group is an independent, UK energy development company formed in 1995, with offices in Stokesley, North Yorkshire and Edinburgh.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
13Exact matchBicester, United KingdomHQ recorded Sep 15, 202611-5021 contacts →

Exact match

“Modular, agile infrastructure to move, store and utilise green hydrogen in underserved sectors.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
14Exact matchLeeds, United KingdomHQ recorded Sep 15, 202611-5016 contacts →

Exact match

“At N-Gen, we’re helping our customers to lead the race towards decarbonisation with low carbon hydrogen.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 15, 202611-5014 contacts →

Exact match

“Oort Energy is a manufacturer of green hydrogen systems for energy storage and clean fuel.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
16Exact matchBath, United KingdomHQ recorded Sep 15, 202611-5012 contacts →

Exact match

“The world needs more green energy, and it needs it fast.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
17Exact matchNuneaton, United KingdomHQ recorded Sep 15, 202611-5011 contacts →

Exact match

“Viritech is a cleantech company which develops world-leading hydrogen powertrain solutions for the automotive, aerospace, marine and distributed power sectors.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
18Exact matchEdinburgh, United KingdomHQ recorded Sep 15, 20261-1010 contacts →

Exact match

“PlusZero Ltd is Making Hydrogen Happen - Our PlusZero Energy brand produces green hydrogen, with our first production site in the Outer Hebrides, the most rapidly scalable…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
19Exact matchLancaster, United KingdomHQ recorded Sep 15, 202611-509 contacts →

Exact match

“NanoSUN responds to the hydrogen needs of fuel cell users by developing innovative products that refuel, store and distribute hydrogen conveniently and economically.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
20Exact matchWallyford, United KingdomHQ recorded Sep 15, 20261-108 contacts →

Exact match

“At H2Tec, we are enabling an ultra-low and zero-emission future for power, heat and transport.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
21Exact matchCrowthorne, United KingdomHQ recorded Sep 15, 20261-107 contacts →

Exact match

“HyEnergy is a consultancy specialising in the pulling together of the disparate hydrogen and energy communities to foster, deliver and understand opportunities for new technical…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 15, 20261-107 contacts →

Exact match

“First Hydrogen is fast becoming the leading designer and manufacturer of zero-emission, long-range hydrogen-powered utility vehicles.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
23Exact matchTruro, United KingdomHQ recorded Sep 15, 202611-507 contacts →

Exact match

“Monthly Print Magazine | Webinars | Events Keeping you at the forefront of news, views and progress in hydrogen energy markets and technologies.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
24Exact matchEpsom, United KingdomHQ recorded Sep 15, 20261-107 contacts →

Exact match

“Founded in 2022, H2Au is leading the way in natural hydrogen exploration and production (E&P), combining proven exploration techniques and unique play-based models to identify…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
25Exact matchWinfrith Newburgh, United KingdomHQ recorded Sep 15, 20261-106 contacts →

Exact match

“Latent Drive develop and commercialise innovative green hydrogen technologies aimed at mass production and scalability.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase

Showing 25 of 98 hydrogen energy companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 665 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogen energy companies based in the United Kingdom at a glance

As of Sep 15, 2026
36.9%Verified-email coverage
18.4Average contacts per company
1-10Median size (employees)
23.5%Largest-city concentration · London
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
51
11-50
35
51-200
8
201-500
3
501-1,000
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 98 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 associated with the United Kingdom whose business descriptions match “hydrogen energy companies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 665 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 September 15, 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 “hydrogen energy companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrogen energy companies are there based in the United Kingdom?

RevenueBase identified 98 company matches for hydrogen energy companies associated with the United Kingdom as of September 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?

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

Which city has the most hydrogen energy companies?

London leads with 23 company records, followed by Cardiff (6) and Edinburgh (5).

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 665 professional contacts with verified work emails tracked across these 98 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 September 15, 2026.

Ready to reach these companies? Verified emails and direct dials for all 98 hydrogen energy companies based in the United Kingdom. Start with a free account, no credit card.

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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.