Company lists · Data refreshed October 2026

Top 25 Hydrogen energy consulting companies worldwide

RevenueBase identified 1,264 company matches for hydrogen energy consulting companies worldwide as of October 2026 and tracks 11,906 professional contacts across them, including 4,036 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for hydrogen energy consulting companies 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 October 14, 2026. Country and city lists for hydrogen energy consulting companies 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 Oct 14, 2026 How this list was built
1,264Companies
11,906Contacts tracked
4,036Verified emails
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The 25 largest hydrogen energy consulting companies worldwide

Ranked by team size
Top 25 of 1,264 company matches for hydrogen energy consulting companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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 Oct 14, 20261,001-5,0002,024 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 · Oct 14, 2026 · View company records in RevenueBase
2Exact matchDortmund, GermanyHQ recorded Oct 14, 20261,001-5,000719 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3Exact matchAlmería, SpainHQ recorded Oct 14, 2026501-1,000232 contacts →

Exact match

“TCI GECOMP es una empresa de Ingeniería y Construcción especializada en Energías renovables e Hidrógeno Verde con presencia en España, Perú, Chile y Argentina.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
4Exact matchRueil-malmaison, FranceHQ recorded Oct 14, 202651-200224 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 · Oct 14, 2026 · View company records in RevenueBase
5Exact matchNantes, FranceHQ recorded Oct 14, 202651-200205 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 · Oct 14, 2026 · View company records in RevenueBase
6Exact matchSingaporeHQ recorded Oct 14, 2026201-500169 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 · Oct 14, 2026 · View company records in RevenueBase
7Exact matchNewcastle, United KingdomHQ recorded Oct 14, 202651-200163 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 · Oct 14, 2026 · View company records in RevenueBase
8Exact matchPuteaux, FranceHQ recorded Oct 14, 202651-200133 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 · Oct 14, 2026 · View company records in RevenueBase
9Exact matchAlphen Aan Den Rijn, NetherlandsHQ recorded Oct 14, 2026201-500124 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
10Exact matchVadodara, IndiaHQ recorded Oct 14, 202651-200115 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 · Oct 14, 2026 · View company records in RevenueBase
11Exact matchBlanquefort, FranceHQ recorded Oct 14, 202651-200115 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 · Oct 14, 2026 · View company records in RevenueBase
12Exact matchRedwood City, CA, United StatesHQ recorded Oct 14, 2026201-500112 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 · Oct 14, 2026 · View company records in RevenueBase
13Exact matchParis, FranceHQ recorded Oct 14, 202651-200111 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 · Oct 14, 2026 · View company records in RevenueBase
14Exact matchLongview, NC, United StatesHQ recorded Oct 14, 202651-200106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15Exact matchBristol, United KingdomHQ recorded Oct 14, 202651-200104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16Exact matchFoussemagne, FranceHQ recorded Oct 14, 2026201-500100 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 · Oct 14, 2026 · View company records in RevenueBase
17Exact matchMladá Boleslav, Czech RepublicHQ recorded Oct 14, 202651-20097 contacts →

Exact match

“We are a major Czech integrator of hydrogen systems in energy and transport.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18Exact matchAlkhobar, Saudi ArabiaHQ recorded Oct 14, 2026201-50095 contacts →

Exact match

“The Fichtner Group is one of the leading independent engineering consultancy firms in the world.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19Exact matchNoida, IndiaHQ recorded Oct 14, 202651-20093 contacts →

Exact match

“GH2 Solar is India’s only integrated green hydrogen platform from electron to molecule.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20Exact matchLisbon, PortugalHQ recorded Oct 14, 202651-20086 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21Exact matchBuena Park, CA, United StatesHQ recorded Oct 14, 202651-20086 contacts →

Exact match

“Fueling and Service Technologies, Inc.(FASTECH) is an end-to-end energy solutions company.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22Exact matchBrussels, BelgiumHQ recorded Oct 14, 202651-20074 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 · Oct 14, 2026 · View company records in RevenueBase
23Exact matchGraz, AustriaHQ recorded Oct 14, 202651-20073 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 · Oct 14, 2026 · View company records in RevenueBase
24Exact matchMontevideo, UruguayHQ recorded Oct 14, 202611-5070 contacts →

Exact match

“SEG Ingeniería es una compañía multinacional uruguaya con 26 años de trayectoria en la región integrada por un grupo de empresas cuyas áreas de negocio son: Eficiencia Energética…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25Exact matchMississauga, ON, CanadaHQ recorded Oct 14, 2026201-50067 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 · Oct 14, 2026 · View company records in RevenueBase

Showing 25 of 1,264 hydrogen energy consulting companies worldwide

See the full list, filter by size, metro and specialty, and access 4,036 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogen energy consulting companies worldwide at a glance

As of Oct 14, 2026
33.9%Verified-email coverage
9.4Average contacts per company
1-10Median size (employees)
3.1%Largest-city concentration · London
Oct 14, 2026Page data refreshed

Companies by employee count

1-10
819
11-50
317
51-200
88
201-500
28
501-1,000
4
1,001-5,000
5
10001+
1

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 energy consulting companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “hydrogen energy consulting 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. 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 4,036 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 October 14, 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 energy consulting companies by location

11 lists · largest first

Every Hydrogen energy consulting companies 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 energy consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrogen energy consulting companies are there worldwide?

RevenueBase identified 1,264 company matches for hydrogen energy consulting companies worldwide as of October 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 energy consulting companies?

The United States leads with 158 companies, followed by Germany (108) and the United Kingdom (103). Every hydrogen energy consulting companies list by country and city is linked on this page.

Which city has the most hydrogen energy consulting companies?

London leads with 39 company records, followed by Houston (19) and Madrid (17).

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 4,036 professional contacts with verified work emails tracked across these 1,264 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 October 14, 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.