Company lists · Data refreshed November 2026

Top 25 Hydrogen companies worldwide

RevenueBase identified 2,848 company matches for hydrogen companies worldwide as of November 2026 and tracks 117,595 professional contacts across them, including 42,087 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for hydrogen 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 November 5, 2026. Country and city lists for hydrogen 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 Nov 5, 2026 How this list was built
2,848Companies
117,595Contacts tracked
42,087Verified emails
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The 25 largest hydrogen companies worldwide

Ranked by team size
Top 25 of 2,848 company matches for hydrogen companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchParis, JapanHQ recorded Nov 5, 202610001+32,830 contacts →

Exact match

“Oxygen, nitrogen, hydrogen, and many other essential small molecules are the invisible pillars of our world and our lives.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchParis, FranceHQ recorded Nov 5, 202610001+17,068 contacts →

Exact match

“Technip Energies is a global technology and engineering powerhouse.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchVienna, AustriaHQ recorded Nov 5, 202610001+7,750 contacts →

Exact match

“It is our purpose to reinvent everyday essentials.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchHyderabad, IndiaHQ recorded Nov 5, 20261,001-5,0002,737 contacts →

Exact match

“Greenko, is one of the World’s leading Energy Transition and Decarbonization solutions company, with an installed Renewable Energy capacity of ~7.5 GW across Wind, Solar and Hydro…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 20261,001-5,0002,485 contacts →

Exact match

“Bloom Energy empowers businesses and communities to responsibly take charge of their energy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchLatham, NY, United StatesHQ recorded Nov 5, 20261,001-5,0002,060 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 · Nov 5, 2026 · View company records in RevenueBase
7Exact matchMumbai, IndiaHQ recorded Nov 5, 20265,001-10,0001,956 contacts →

Exact match

“Avaada Group is a diversified clean energy conglomerate focused on the global energy transition, providing solutions in renewable power generation, solar PV manufacturing, green…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 5, 202610001+1,741 contacts →

Exact match

“Somos una compañía comprometida con la energía y la movilidad sostenibles basadas en moléculas verdes.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchDocklands, AustraliaHQ recorded Nov 5, 20265,001-10,0001,659 contacts →

Exact match

“A career with Viva Energy is more than just a job!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchSpring, TX, United StatesHQ recorded Nov 5, 20261,001-5,0001,507 contacts →

Exact match

“Founded in 1981, TETRA continues to apply its 40+ years of expertise in fluids chemistry to forge the pathway to future success while remaining the ONE trusted leader in the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchBrussels, BelgiumHQ recorded Nov 5, 20261,001-5,0001,123 contacts →

Exact match

“We are a fully independent infrastructure group headquartered in Belgium with almost 1,500 employees.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchBurnaby, CanadaHQ recorded Nov 5, 2026501-1,000796 contacts →

Exact match

“Ballard Power Systems Inc, is a world leader in the development, manufacture, sale and servicing of hydrogen fuel cell power systems.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchUnited StatesHQ recorded Nov 5, 20261,001-5,000764 contacts →

Exact match

“We’re Accelera by Cummins - the clean energy technology brand with a bold mission: to power a more sustainable world, one zero-emissions solution at a time.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchDortmund, GermanyHQ recorded Nov 5, 20261,001-5,000739 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchCairo, EgyptHQ recorded Nov 5, 20261,001-5,000727 contacts →

Exact match

“The Egyptian Natural Gas Company (GASCO) was established in March 1997 Pursuant to investment law no.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchÜbach-palenberg, GermanyHQ recorded Nov 5, 20261,001-5,000653 contacts →

Exact match

“NEUMAN & ESSER is a reliable partner to the industry, driving both the energy transition and the circular economy with integrated solutions for the energy infrastructure of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchPhoenix, AZ, United StatesHQ recorded Nov 5, 20261,001-5,000600 contacts →

Exact match

“Nikola is a technology disruptor and integrator, working to develop innovative energy and transportation solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchAdelaide, AustraliaHQ recorded Nov 5, 2026501-1,000595 contacts →

Exact match

“Our vision is to deliver infrastructure essential to a sustainable energy future.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchFremont, United StatesHQ recorded Nov 5, 2026501-1,000546 contacts →

Exact match

“Ohmium's mission is to accelerate the adoption of green hydrogen to decarbonize hard-to-abate sectors and enable a low-carbon future.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchEssen, GermanyHQ recorded Nov 5, 20265,001-10,000538 contacts →

Exact match

“The Steag Iqony Group combines the best of all energy worlds.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchEssen, GermanyHQ recorded Nov 5, 20261,001-5,000528 contacts →

Exact match

“OGE lässt gasförmige Moleküle fließen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchMiddlesex, NJ, United StatesHQ recorded Nov 5, 2026501-1,000504 contacts →

Exact match

“Galileo Technologies is a leading company in the engineering and manufacturing of high-value-added energy solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 5, 2026501-1,000488 contacts →

Exact match

“INEOS is a global chemical, manufacturing and energy company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchGuimarães, PortugalHQ recorded Nov 5, 20261,001-5,000462 contacts →

Exact match

“At Petrotec Group, we are more than a provider of mobility solutions, we are enablers of progress across multiple energy sources.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchDresden, GermanyHQ recorded Nov 5, 2026501-1,000460 contacts →

Exact match

“Established in 2010 and based in Dresden, Germany, Sunfire is a world-leading industrial electrolysis company with two differentiated technologies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 2,848 hydrogen companies worldwide

See the full list, filter by size, metro and specialty, and access 42,087 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogen companies worldwide at a glance

As of Nov 5, 2026
35.8%Verified-email coverage
41.3Average contacts per company
1-10Median size (employees)
1.9%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
1,435
11-50
855
51-200
324
201-500
124
501-1,000
35
1,001-5,000
34
5,001-10,000
9
10001+
18

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 companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “hydrogen 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 42,087 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 5, 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 companies by location

16 lists · largest first

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

How many hydrogen companies are there worldwide?

RevenueBase identified 2,848 company matches for hydrogen companies worldwide 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?

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

Which country has the most hydrogen companies?

The United States leads with 381 companies, followed by Germany (231) and the United Kingdom (214). Every hydrogen companies list by country and city is linked on this page.

Which city has the most hydrogen companies?

London leads with 55 company records, followed by Houston (37) and Madrid (28).

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 42,087 professional contacts with verified work emails tracked across these 2,848 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 5, 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.