Company lists · Data refreshed September 2026

Top 25 Hydrogen generation system companies based in the United Kingdom

RevenueBase identified 58 company matches for hydrogen generation system companies associated with the United Kingdom as of September 2026 and tracks 1,307 professional contacts across them, including 461 with verified work emails. London is the largest hub.

This list covers company matches for hydrogen generation system 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 20, 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 20, 2026 How this list was built
58Companies
1,307Contacts tracked
461Verified emails
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The 25 largest hydrogen generation system companies based in the United Kingdom

Ranked by team size
Top 25 of 58 company matches for hydrogen generation system companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 20, 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 20, 2026 · View company records in RevenueBase
2Exact matchHull, United KingdomHQ recorded Sep 20, 202651-20096 contacts →

Exact match

“HiiROC is a technology company established in 2019 to develop and commercialise its plasma torch technology in the production of hydrogen from biomethane, flare gas and natural…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchDoncaster, United KingdomHQ recorded Sep 20, 202651-20050 contacts →

Exact match

“For too long, hydrogen was held back.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchStone, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
5Exact matchHungerford, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
6Exact matchOxford, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
7Exact matchEdinburgh, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
8Exact matchOxford, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
9Exact matchLeeds, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
11Exact matchEdinburgh, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
12Exact matchLancaster, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
13Exact matchWallyford, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
14Exact matchWinfrith Newburgh, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
15Exact matchNorth West, United KingdomHQ recorded Sep 20, 202611-506 contacts →

Exact match

“Our Business CAGE Technologies Ltd (CTL) is an internationally recognised Technology business that offers a clean, cost-effective alternative to diesel power using a range of…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-2006 contacts →

Exact match

“Humble Hydrogen is a leading hydrogen solution provider and manufacturer.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchYork, United KingdomHQ recorded Sep 20, 20261-106 contacts →

Exact match

“Hydrologiq turns a complex hydrogen supply chain into easily-deployable solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchDeeside, United KingdomHQ recorded Sep 20, 202611-505 contacts →

Exact match

“Compact Syngas Solutions supply modular gasification technology for the production of hydrogen, power, heat and carbon credits”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchWarwick, United KingdomHQ recorded Sep 20, 202611-505 contacts →

Exact match

“Pietro Fiorentini is a world leader with a long history in the field of Gas and Oil Management.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSheffield, United KingdomHQ recorded Sep 20, 20261-105 contacts →

Exact match

“WD HydroTech has developed a novel hydrogen generation and compression platform designed specifically for distributed industrial and mobility applications.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchWest Dean, United KingdomHQ recorded Sep 20, 20261-105 contacts →

Exact match

“Steamology was founded to commercially exploit the technology legacy of a successful land speed world record attempt, exploring the potential of clean green renewable hydrogen…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchDartford, United KingdomHQ recorded Sep 20, 20261-105 contacts →

Exact match

“RHizome2 is a specialist system integrator, with expertise in green hydrogen production, compression, storage & delivery systems.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 20, 20261-105 contacts →

Exact match

“Meld Energy is a large scale UK green hydrogen developer with ambitions to produce 10%+ of country's electrolytic hydrogen powered by renewable energy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchLoughborough, United KingdomHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Unitrove delivers zero-emission fuelling infrastructure for heavy-duty transport and industry supplying zero-carbon fuels including liquid hydrogen (LH2), compressed gaseous…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchManchester, United KingdomHQ recorded Sep 20, 20261-103 contacts →

Exact match

“Circular Refining is a dynamic innovation company at the forefront of the hydrogen revolution.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 58 hydrogen generation system companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 461 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogen generation system companies based in the United Kingdom at a glance

As of Sep 20, 2026
35.3%Verified-email coverage
22.5Average contacts per company
11-50Median size (employees)
19.0%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
21
51-200
7
201-500
3

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 58 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 generation system 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 461 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 20, 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 generation system companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 58 company matches for hydrogen generation system 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 generation system companies?

London leads with 11 company records, followed by Cardiff (4) and Brighton (2).

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 461 professional contacts with verified work emails tracked across these 58 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 58 hydrogen generation system 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.