Company lists · Data refreshed November 2026

Top 25 Hydrogen production plant builders worldwide

RevenueBase identified 727 company matches for hydrogen production plant builders worldwide as of November 2026 and tracks 67,367 professional contacts across them, including 17,041 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for hydrogen production plant builders 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 6, 2026. Country and city lists for hydrogen production plant builders 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 6, 2026 How this list was built
727Companies
67,367Contacts tracked
17,041Verified emails
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The 25 largest hydrogen production plant builders worldwide

Ranked by team size
Top 25 of 727 company matches for hydrogen production plant builders worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchHouston, TX, United StatesHQ recorded Nov 6, 202610001+21,606 contacts →

Exact match

“McDermott is a premier provider of engineering and construction solutions to the energy industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCourbevoie, FranceHQ recorded Nov 6, 20265,001-10,0006,903 contacts →

Exact match

“Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMenasha, WI, United StatesHQ recorded Nov 6, 20265,001-10,0002,999 contacts →

Exact match

“Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchChiba-shi Mihama-ku, JapanHQ recorded Nov 6, 20261,001-5,0002,912 contacts →

Exact match

“Toyo Engineering is an engineering company that constructs the plant in a global stage centering on the plant engineering field.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPune, IndiaHQ recorded Nov 6, 20261,001-5,0001,501 contacts →

Exact match

“TKIL Industries Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 202610001+1,159 contacts →

Exact match

“Electrical Power Construction Co, Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchKuwaitHQ recorded Nov 6, 20261,001-5,0001,155 contacts →

Exact match

“Established in 1970, IMCO started as a pioneer in the Industrial Electrical and Instrumentation Fields in Kuwait.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBangalore, IndiaHQ recorded Nov 6, 2026201-500796 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchDortmund, GermanyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
10Exact matchÜbach-palenberg, GermanyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
11Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 20261,001-5,000547 contacts →

Exact match

“ARB Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchFremont, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
13Exact matchEdmonton, AB, CanadaHQ recorded Nov 6, 2026501-1,000304 contacts →

Exact match

“Thermo Design (TDE) is an innovative energy solutions company and a recognized leader in the design and engineering, fabrication, manufacturing, construction management…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDevens, MA, United StatesHQ recorded Nov 6, 2026201-500283 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSurrey, BC, CanadaHQ recorded Nov 6, 2026201-500264 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNanterre, FranceHQ recorded Nov 6, 2026201-500250 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSouth Windsor, CT, United StatesHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAlmería, SpainHQ recorded Nov 6, 2026501-1,000237 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSesto San Giovanni, ItalyHQ recorded Nov 6, 2026201-500217 contacts →

Exact match

“We are an Engineering & Contracting Company with a portfolio of almost 60 years of experience and 300 completed projects in more than 30 countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNantes, FranceHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPadua, ItalyHQ recorded Nov 6, 202651-200193 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchForli, ItalyHQ recorded Nov 6, 202651-200171 contacts →

Exact match

“Fores Engineering is an Italian company, part of the Rosetti Marino Group, specialized in the Engineering, Integration and Construction of turnkey systems for offshore and onshore…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBenicia, NV, United StatesHQ recorded Nov 6, 202651-200161 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchVitoria-gasteiz, SpainHQ recorded Nov 6, 202651-200150 contacts →

Exact match

“NOVARGI GROUP, is a global integral engineering solutions contractor for the Energy and Fertilizer Industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPuteaux, FranceHQ recorded Nov 6, 202651-200142 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 · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 727 hydrogen production plant builders worldwide

See the full list, filter by size, metro and specialty, and access 17,041 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogen production plant builders worldwide at a glance

As of Nov 6, 2026
25.3%Verified-email coverage
92.7Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
260
11-50
244
51-200
140
201-500
44
501-1,000
11
1,001-5,000
15
5,001-10,000
3
10001+
7

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 production plant builders are linked below.
What qualifies
Company records worldwide whose business descriptions match “hydrogen production plant builders” 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 17,041 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 6, 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 production plant builders by location

7 lists · largest first

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

How many hydrogen production plant builders are there worldwide?

RevenueBase identified 727 company matches for hydrogen production plant builders 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?

Mcdermott International, LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most hydrogen production plant builders?

The United States leads with 89 companies, followed by Germany (79) and India (55). Every hydrogen production plant builders list by country and city is linked on this page.

Which city has the most hydrogen production plant builders?

Houston leads with 11 company records, followed by Paris (8) and London (7).

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 17,041 professional contacts with verified work emails tracked across these 727 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 6, 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.