Company lists · Data refreshed October 2026

Top 25 Green hydrogen engineering companies worldwide

RevenueBase identified 1,568 company matches for green hydrogen engineering companies worldwide as of October 2026 and tracks 37,409 professional contacts across them, including 11,477 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for green hydrogen engineering 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 13, 2026. Country and city lists for green hydrogen engineering 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 13, 2026 How this list was built
1,568Companies
37,409Contacts tracked
11,477Verified emails
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The 25 largest green hydrogen engineering companies worldwide

Ranked by team size
Top 25 of 1,568 company matches for green hydrogen engineering companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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 matchGurgaon, IndiaHQ recorded Oct 13, 20261,001-5,0004,430 contacts →

Exact match

“ReNew is a leading decarbonisation solutions provider and the first Indian clean energy company to list on Nasdaq (Nasdaq: RNW).”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2Exact matchHyderabad, IndiaHQ recorded Oct 13, 20261,001-5,0002,621 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 · Oct 13, 2026 · View company records in RevenueBase
3Exact matchHuangpu District, ChinaHQ recorded Oct 13, 20261,001-5,0002,204 contacts →

Exact match

“Envision Energy is a world-leading green technology company that provides renewable energy solutions for global enterprises, governments, and institutions.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4Exact matchLatham, NY, United StatesHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Oct 13, 202610001+1,667 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6Exact matchBangalore, IndiaHQ recorded Oct 13, 2026201-500761 contacts →

Exact match

“GPS Renewables is India's leading full-stack biofuels firm, offering technology & EPC to project development solutions for bioCNG, Ethanol & Green H2.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
7Exact matchDortmund, GermanyHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
8Exact matchStockholm, SwedenHQ recorded Oct 13, 2026201-500698 contacts →

Exact match

“Founded in 2020, Stegra (formerly H2 Green Steel) was created with the purpose to decarbonize hard-to-abate industry.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9Exact matchFremont, United StatesHQ recorded Oct 13, 2026501-1,000529 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 · Oct 13, 2026 · View company records in RevenueBase
10Exact matchDresden, GermanyHQ recorded Oct 13, 2026501-1,000447 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 · Oct 13, 2026 · View company records in RevenueBase
11Exact matchAugsburg, GermanyHQ recorded Oct 13, 2026501-1,000333 contacts →

Exact match

“As a technological pioneer, Quest One develops and produces innovative PEM electrolyzers and electrolyzer stacks.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12Exact matchSheffield, United KingdomHQ recorded Oct 13, 2026201-500298 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 · Oct 13, 2026 · View company records in RevenueBase
13Exact matchKorea, South KoreaHQ recorded Oct 13, 2026501-1,000294 contacts →

Exact match

“We are a company that can organically connect renewable energy, clean hydrogen, energy solutions, and the LNG business to create synergy.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14Exact matchTabuk, Saudi ArabiaHQ recorded Oct 13, 202651-200292 contacts →

Exact match

“NEOM Green Hydrogen Company (NGHC) is on a mission to make a carbon-free, climate-safe future a reality.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15Exact matchOslo, NorwayHQ recorded Oct 13, 2026201-500291 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 · Oct 13, 2026 · View company records in RevenueBase
16Exact matchDevens, MA, United StatesHQ recorded Oct 13, 2026201-500285 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 · Oct 13, 2026 · View company records in RevenueBase
17Exact matchSurrey, BC, CanadaHQ recorded Oct 13, 2026201-500257 contacts →

Exact match

“Solaris MCI leads engineering, procurement, and project execution with a focus on agility and reliability, specializing in natural gas, LNG, hydrogen, ammonia, methanol, carbon…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18Exact matchNanterre, FranceHQ recorded Oct 13, 2026201-500241 contacts →

Exact match

“Entrepose Contracting, a subsidiary of VINCI Construction Grands Projets, designs and delivers critical energy infrastructure for the storage, treatment, and transportation of…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19Exact matchAlmería, SpainHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
20Exact matchBergen, BC, NorwayHQ recorded Oct 13, 2026201-500228 contacts →

Exact match

“Corvus Energy is the world’s leading supplier of safe, innovative and reliable zero-emission solutions for maritime, offshore, port, and subsea applications-in the form of marine…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21Exact matchNantes, FranceHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
22Exact matchQuimper, FranceHQ recorded Oct 13, 2026201-500196 contacts →

Exact match

“Entech develops solar production, storage, and electricity conversion solutions controlled by smart software systems that promote the increasing and profitable integration of…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23Exact matchGurgaon, IndiaHQ recorded Oct 13, 2026501-1,000193 contacts →

Exact match

“Greenfuel is India's Tier 1 supplier of green mobility and clean energy solutions to top OEMs.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24Exact matchPadua, ItalyHQ recorded Oct 13, 202651-200188 contacts →

Exact match

“Since June 2025, STE Energy has been acquired by, becoming part of the world.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25Exact matchBangrak, ThailandHQ recorded Oct 13, 2026201-500179 contacts →

Exact match

“BIG - A Climate Tech Company - is a leader in industrial gas and greenhouse gas reduction technology.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

Showing 25 of 1,568 green hydrogen engineering companies worldwide

See the full list, filter by size, metro and specialty, and access 11,477 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Green hydrogen engineering companies worldwide at a glance

As of Oct 13, 2026
30.7%Verified-email coverage
23.9Average contacts per company
1-10Median size (employees)
1.9%Largest-city concentration · London
Oct 13, 2026Page data refreshed

Companies by employee count

1-10
835
11-50
492
51-200
152
201-500
57
501-1,000
14
1,001-5,000
14
5,001-10,000
1
10001+
3

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 green hydrogen engineering companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “green hydrogen engineering 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 11,477 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 13, 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.

Green hydrogen engineering companies by location

13 lists · largest first

Every Green hydrogen engineering 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 “green hydrogen engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many green hydrogen engineering companies are there worldwide?

RevenueBase identified 1,568 company matches for green hydrogen engineering 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?

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

Which country has the most green hydrogen engineering companies?

The United States leads with 166 companies, followed by Germany (139) and the United Kingdom (129). Every green hydrogen engineering companies list by country and city is linked on this page.

Which city has the most green hydrogen engineering companies?

London leads with 30 company records, followed by Madrid (27) and Paris (16).

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 11,477 professional contacts with verified work emails tracked across these 1,568 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 13, 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.