Company lists · Data refreshed September 2026

Top 25 Hydrogen consultants worldwide

RevenueBase identified 2,036 company matches for hydrogen consultants worldwide as of September 2026 and tracks 17,865 professional contacts across them, including 5,823 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for hydrogen consultants worldwide, 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. Country and city lists for hydrogen consultants follow the table.

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
2,036Companies
17,865Contacts tracked
5,823Verified emails
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The 25 largest hydrogen consultants worldwide

Ranked by team size
Top 25 of 2,036 company matches for hydrogen consultants worldwide, 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 matchDortmund, GermanyHQ recorded Sep 21, 20261,001-5,000691 contacts →

Exact match

“thyssenkrupp nucera offers world-leading technologies for high-efficiency electrolysis plants.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchLeatherhead, United KingdomHQ recorded Sep 21, 2026501-1,000648 contacts →

Exact match

“KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchDevens, MA, United StatesHQ recorded Sep 21, 2026201-500346 contacts →

Exact match

“Electric Hydrogen manufactures, delivers and commissions the world’s most powerful electrolyzers to make clean hydrogen projects economically viable today.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchOslo, NorwayHQ recorded Sep 21, 2026201-500327 contacts →

Exact match

“Nel has a history tracing back to 1927 and is today a leading pure play hydrogen electrolyser technology company with a global presence.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchSheffield, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6Exact matchIndiaHQ recorded Sep 21, 2026501-1,000275 contacts →

Exact match

“Global gas and power markets are expanding fast and becoming increasingly integrated and complex - and the need for market intelligence and informed advice based on deep industry…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 21, 2026501-1,000235 contacts →

Exact match

“Pt singgar mulia, engineering consultant in oil, gas and energy industry”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchOslo, NorwayHQ recorded Sep 21, 2026501-1,000214 contacts →

Exact match

“Hexagon Purus enables zero emission mobility for a cleaner energy future.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchRueil-malmaison, FranceHQ recorded Sep 21, 202651-200212 contacts →

Exact match

“Beicip-Franlab is a leading Energy Consultancy and Software Editor created in the 1960's with recognized worldwide hands-on expertise.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchNantes, FranceHQ recorded Sep 21, 202651-200210 contacts →

Exact match

“Lhyfe is a certain idea of the world, a world in which we can meet our energy needs by being part of the natural ecosystem rather than trying to dominate it.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchBurnaby, BC, CanadaHQ recorded Sep 21, 2026201-500191 contacts →

Exact match

“Greenlight Innovation is the leading global supplier of testing and manufacturing solutions for hydrogen fuel cells, electrolysers, and lithium batterie packs.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchSingaporeHQ recorded Sep 21, 2026201-500167 contacts →

Exact match

“Sunkonnect is a leading energy transition and renewable energy consulting company delivering end-to-end engineering, quality assurance, project management consultancy, and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchBenicia, CA, United StatesHQ recorded Sep 21, 202651-200152 contacts →

Exact match

“Serving critical infrastructure markets, RIX Industries is a global leader in the design, development, and manufacturing of hydrogen and gas generation systems, precision high…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchCranleigh, United KingdomHQ recorded Sep 21, 202651-200149 contacts →

Exact match

“AFC Energy is the leading provider of Hydrogen fuel cell technology to generate clean off-grid energy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchFoussemagne, FranceHQ recorded Sep 21, 2026201-500145 contacts →

Exact match

“As a leading "pure player" McPhy designs and manufactures a range of hydrogen production and valorization equipment, including electrolyzers built on robust and proven technology…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchLongview, NC, United StatesHQ recorded Sep 21, 202651-200130 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchParis, FranceHQ recorded Sep 21, 202651-200127 contacts →

Exact match

“Hynamics est la filiale 100% du groupe EDF qui produit et commercialise de l'hydrogène bas carbone; elle adresse les deux marchés les plus émetteurs de CO2 que sont l’industrie et…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchAlphen Aan Den Rijn, NetherlandsHQ recorded Sep 21, 2026201-500127 contacts →

Exact match

“As of December 2021, Frames is part of Plug Power.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchBlanquefort, FranceHQ recorded Sep 21, 202651-200123 contacts →

Exact match

“HDF Energy is a leading global player in the hydrogen industry, dedicated to developing large-scale hydrogen infrastructure and advanced multi-megawatt fuel cell technology.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchPuteaux, FranceHQ recorded Sep 21, 202651-200122 contacts →

Exact match

“SOFREGAZ is a leading independent engineering company, created in 1959 by Gaz de France, with over 1300 projects across 95 countries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchLe Bourget Du Lac, FranceHQ recorded Sep 21, 202651-200114 contacts →

Exact match

“In a fast-changing world in which companies and local authorities are working to decarbonize mobility, the development of recharging technologies represents a crucial challenge.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchGeretsried, GermanyHQ recorded Sep 21, 2026501-1,000109 contacts →

Exact match

“Die Tyczka Gruppe ist ein Gasespezialist mit Fokus auf Flüssiggas, Industriegase und Wasserstoff.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchVadodara, IndiaHQ recorded Sep 21, 202651-200109 contacts →

Exact match

“Rishabh Pro Engineering Services Private Limited is a leading multidisciplinary design engineering firm with over two decades of experience.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchHerning, DenmarkHQ recorded Sep 21, 2026201-500108 contacts →

Exact match

“Cavendish Hydrogen is a global leader in hydrogen fueling solutions for the mobility sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact 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

Showing 25 of 2,036 hydrogen consultants worldwide

See the full list, filter by size, metro and specialty, and access 5,823 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogen consultants worldwide at a glance

As of Sep 21, 2026
32.6%Verified-email coverage
8.8Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
1,284
11-50
523
51-200
153
201-500
51
501-1,000
12
1,001-5,000
6
10001+
4

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for hydrogen consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “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. 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 5,823 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.

Hydrogen consultants by location

11 lists · largest first

Every Hydrogen consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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

How many hydrogen consultants are there worldwide?

RevenueBase identified 2,036 company matches for hydrogen consultants worldwide 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?

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

Which country has the most hydrogen consultants?

The United States leads with 261 companies, followed by the United Kingdom (173) and Germany (166). Every hydrogen consultants list by country and city is linked on this page.

Which city has the most hydrogen consultants?

London leads with 49 company records, followed by Houston (21) and Calgary (19).

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 5,823 professional contacts with verified work emails tracked across these 2,036 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.