Company lists · Data refreshed September 2026

Top 25 Hydrogen economy consulting firms worldwide

RevenueBase identified 1,003 company matches for hydrogen economy consulting firms worldwide as of September 2026 and tracks 9,356 professional contacts across them, including 3,453 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for hydrogen economy consulting firms 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 28, 2026. Country and city lists for hydrogen economy consulting firms 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 28, 2026 How this list was built
1,003Companies
9,356Contacts tracked
3,453Verified emails
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The 25 largest hydrogen economy consulting firms worldwide

Ranked by team size
Top 25 of 1,003 company matches for hydrogen economy consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchLatham, NY, United StatesHQ recorded Sep 28, 20261,001-5,0002,037 contacts →

Exact match

“Plug is building an end-to-end green hydrogen ecosystem, from production, storage and delivery to energy generation, to help its customers meet their business goals and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchDortmund, GermanyHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3Exact matchNantes, FranceHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4Exact matchLongview, NC, United StatesHQ recorded Sep 28, 202651-200130 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchParis, FranceHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
6Exact matchRedwood City, CA, United StatesHQ recorded Sep 28, 2026201-500113 contacts →

Exact match

“Energy Experts International is a leader in providing management consultation to companies, organizations and end-users on energy issues, both domestically and globally.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchHerning, DenmarkHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8Exact matchBristol, United KingdomHQ recorded Sep 28, 202651-200100 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchWaltham, MA, United StatesHQ recorded Sep 28, 202651-20088 contacts →

Exact match

“Emerging Questions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchBrussels, BelgiumHQ recorded Sep 28, 202651-20076 contacts →

Exact match

“Founded in 2006, HINICIO is a strategic consulting firm specialized in the decarbonization challenges of hard-to-abate sectors, with more than 20 years of experience in hydrogen…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchLisboa, PortugalHQ recorded Sep 28, 202651-20076 contacts →

Exact match

“Patented technologies delivering industrial performance, lower operating costs, and reduced CO₂ emissions through combustion optimization.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchGraz, AustriaHQ recorded Sep 28, 202651-20072 contacts →

Exact match

“The HyCentA Research GmbH at Graz University of Technology is the only extra-university research institution in Austria exclusively focusing on hydrogen technologies.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchMississauga, ON, CanadaHQ recorded Sep 28, 2026201-50071 contacts →

Exact match

“SHIFT POWER ENERGIZE YOUR WORLD Hydrogenics, a Cummins company, is an industry leader in designing, manufacturing, building and installing industrial and commercial Hydrogen…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchHerning, DenmarkHQ recorded Sep 28, 202651-20066 contacts →

Exact match

“Everfuel is the new fueling hydrogen fuel company in Europe.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchUnited StatesHQ recorded Sep 28, 202611-5059 contacts →

Exact match

“Koloma is a geologic hydrogen company that leverages its technology, proprietary data, and human capital advantages to identify and commercialize these resources on a global scale.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchWeeze, GermanyHQ recorded Sep 28, 2026201-50056 contacts →

Exact match

“Hexagon Purus hat sich auf Leichtbaukomponenten und -systeme aus Faserverbundwerkstoffen spezialisiert und ist weltweit führend in Schlüsseltechnologien für emissionsfreie…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchVilliers-Saint-Frederic, FranceHQ recorded Sep 28, 202651-20050 contacts →

Exact match

“HYVIA: the new path to hydrogen mobility HYVIA is the first company to offer turnkey solutions for hydrogen mobility.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchParis, FranceHQ recorded Sep 28, 202611-5049 contacts →

Exact match

“Our company was born in 2021 from the combination of Ardian, one of the world's leading private equity firms, and FiveT Hydrogen, a hydrogen focused investment platform.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchCuarte ( Huesca), SpainHQ recorded Sep 28, 202611-5048 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchBremen, GermanyHQ recorded Sep 28, 202651-20043 contacts →

Exact match

“ENGINIUS steht für innovative alternative Antriebe made in Germany und eine saubere Zukunft.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchEssen, GermanyHQ recorded Sep 28, 202651-20041 contacts →

Exact match

“Energiekonzepte für die nächsten Generationen.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchAix En Provence Cedex 4, FranceHQ recorded Sep 28, 202651-20039 contacts →

Exact match

“With over 20 years of experience, HELION Hydrogen Power, subsidiary of Alstom, is a leading high-power hydrogen fuel cell manufacturer based in Aix-en-Provence, France.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchGenova, ItalyHQ recorded Sep 28, 202611-5038 contacts →

Exact match

“Fichtner Italia è una società indipendente, appartenente al Gruppo Fichtner, attiva sin dalla data di fondazione nel fornire servizi di consulenza di ingegneria a gruppi…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchAmersfoort, NetherlandsHQ recorded Sep 28, 202651-20038 contacts →

Exact match

“Enabling emissions-free industries with green hydrogen”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchUnited StatesHQ recorded Sep 28, 202611-5038 contacts →

Exact match

“We are TEAL Mobility, and we believe heavy transport deserves a clean future.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 1,003 hydrogen economy consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 3,453 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogen economy consulting firms worldwide at a glance

As of Sep 28, 2026
36.9%Verified-email coverage
9.3Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
666
11-50
253
51-200
49
201-500
23
501-1,000
4
1,001-5,000
5
10001+
2

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 economy consulting firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “hydrogen economy consulting firms” 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 3,453 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 28, 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 economy consulting firms by location

9 lists · largest first

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

Countries

Cities

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

How many hydrogen economy consulting firms are there worldwide?

RevenueBase identified 1,003 company matches for hydrogen economy consulting firms 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?

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

Which country has the most hydrogen economy consulting firms?

The United States leads with 130 companies, followed by Germany (89) and the United Kingdom (83). Every hydrogen economy consulting firms list by country and city is linked on this page.

Which city has the most hydrogen economy consulting firms?

London leads with 37 company records, followed by Calgary (13) and Berlin (11).

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 3,453 professional contacts with verified work emails tracked across these 1,003 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 28, 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.