Company lists · Data refreshed November 2026

Top 25 Clean hydrogen project consultants based in the United Kingdom

RevenueBase identified 86 company matches for clean hydrogen project consultants associated with the United Kingdom as of November 2026 and tracks 1,045 professional contacts across them, including 509 with verified work emails. London is the largest hub.

This list covers company matches for clean hydrogen project 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 November 6, 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 Nov 6, 2026 How this list was built
86Companies
1,045Contacts tracked
509Verified emails
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The 25 largest clean hydrogen project consultants based in the United Kingdom

Ranked by team size
Top 25 of 86 company matches for clean hydrogen project consultants based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchBristol, United KingdomHQ recorded Nov 6, 202651-200106 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5047 contacts →

Exact match

“In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“The energy transition is gaining momentum but needs to accelerate to meet the challenges posed by the climate emergency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202611-5031 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchOxford, United KingdomHQ recorded Nov 6, 202651-20028 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCity Of London, United KingdomHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Green Cat Hydrogen develops green hydrogen projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLeeds, United KingdomHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchIsle Of Wight, United KingdomHQ recorded Nov 6, 20261-1014 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchOxford, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Electrogenos sits at the cutting-edge of the Alkaline Electrolyser technology, advancing innovation in the field of green-hydrogen production.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Accelerating the hydrogen transition through actionable insights and networking.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Kuungana Advisory is a consulting firm providing energy economics and commercial advisory services to public sector and private sector actors in the energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCrowthorne, United KingdomHQ recorded Nov 6, 20261-108 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWallyford, United KingdomHQ recorded Nov 6, 20261-107 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchEpsom, United KingdomHQ recorded Nov 6, 20261-106 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-2005 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Backstop Advisory provides commercial and technical advisory services to energy projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchManchester, United KingdomHQ recorded Nov 6, 20261-105 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-105 contacts →

Exact match

“At CREAS Energy Consulting, our vision is to be a leader of competitive decarbonisation within the energy-to-chemicals industrial sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Vedra’s Process makes Carbon Neutral Hydrogen at scale from in-situ oil while sequestering CO2.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWoking, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“We have been providing independent strategic advice on the hydrocarbon transition and the impact of new energy technology for over 10 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchEast Anglia, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchGlasgow, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSwansea, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Fuelling greener communities Hyppo hydrogen solutions has been set up to expedite the shift away from fossil fuels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 86 clean hydrogen project consultants based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 509 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clean hydrogen project consultants based in the United Kingdom at a glance

As of Nov 6, 2026
48.7%Verified-email coverage
12.2Average contacts per company
1-10Median size (employees)
38.4%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
57
11-50
20
51-200
5
501-1,000
2

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 86 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 “clean hydrogen project 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 509 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 November 6, 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.

Clean hydrogen project consultants by metro

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

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

RevenueBase identified 86 company matches for clean hydrogen project consultants associated with the United Kingdom as of November 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?

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

Which city has the most clean hydrogen project consultants?

London leads with 33 company records, followed by Aberdeen (4) and Cardiff (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 509 professional contacts with verified work emails tracked across these 86 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 November 6, 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.