Company lists · Data refreshed September 2026

Top 25 Green hydrogen consultants based in the United Kingdom

RevenueBase identified 87 company matches for green hydrogen consultants associated with the United Kingdom as of September 2026 and tracks 910 professional contacts across them, including 461 with verified work emails. London is the largest hub.

This list covers company matches for green hydrogen consultants 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 21, 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 21, 2026 How this list was built
87Companies
910Contacts tracked
461Verified emails
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The 25 largest green hydrogen consultants based in the United Kingdom

Ranked by team size
Top 25 of 87 company matches for green hydrogen consultants based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchNewcastle, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
2Exact matchBristol, United KingdomHQ recorded Sep 21, 202651-200100 contacts →

Exact match

“Everoze is an employee-owned renewables, green hydrogen and storage consultancy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchStone, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4Exact matchOxford, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5Exact matchEdinburgh, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6Exact matchCity Of London, United KingdomHQ recorded Sep 21, 202611-5027 contacts →

Exact match

“Pace is the world’s leading provider of engineering design to the CCS and blue hydrogen industries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchEdinburgh, United KingdomHQ recorded Sep 21, 202611-5024 contacts →

Exact match

“Green Cat Hydrogen develops green hydrogen projects.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchLeeds, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
10Exact matchIsle Of Wight, United KingdomHQ recorded Sep 21, 20261-1013 contacts →

Exact match

“A team of leading low carbon energy professionals with global experience, each with a track record of individual success.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5012 contacts →

Exact match

“We provide unrivalled access, insight, and a human capital competitive advantage to industry leaders and pioneers across global Gas, LNG and Hydrogen industries advancing the…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 21, 20261-1012 contacts →

Exact match

“We're a hydrogen-specialist political strategy and communications agency.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchEdinburgh, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
14Exact matchCranfield University, United KingdomHQ recorded Sep 21, 20261-109 contacts →

Exact match

“HyWaves' goal is to increase locally produced hydrogen by simplifying solar to hydrogen power electronics and enhancing electrolysers to increase green hydrogen production.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 21, 20261-108 contacts →

Exact match

“Delta H is a consultancy dedicated to accelerating the transition to zero carbon energy systems.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchWallyford, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17Exact matchCrowthorne, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
18Exact matchNottingham, United KingdomHQ recorded Sep 21, 20261-107 contacts →

Exact match

“AQSORPTION LTD is a specialist engineering firm developing production units for sustainable green hydrogen and sustainable, high quality graphene products.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchWinfrith Newburgh, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
20Exact matchNewark, United KingdomHQ recorded Sep 21, 20261-106 contacts →

Exact match

“Newton Energi Limited is a green energy facilitator, focusing on providing innovative solutions to help balance our national grid as we simultaneously focus on the supply of…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchYork, United KingdomHQ recorded Sep 21, 20261-106 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchEast Anglia, United KingdomHQ recorded Sep 21, 20261-105 contacts →

Exact match

“At HydroGenus our mission is to deliver the switch to clean, green hydrogen.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchSheffield, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
24Exact matchDartford, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase

Showing 25 of 87 green hydrogen consultants 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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Green hydrogen consultants based in the United Kingdom at a glance

As of Sep 21, 2026
50.7%Verified-email coverage
10.5Average contacts per company
1-10Median size (employees)
33.3%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
59
11-50
21
51-200
7

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 87 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 “green hydrogen consultants” 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 21, 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 “green hydrogen consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many green hydrogen consultants are there based in the United Kingdom?

RevenueBase identified 87 company matches for green hydrogen consultants 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?

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

Which city has the most green hydrogen consultants?

London leads with 29 company records, followed by Edinburgh (5) and Manchester (4).

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 87 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 21, 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.