Company lists · Data refreshed September 2026

Top 25 Sustainable hydrogen manufacturers based in the United States

Name: Sustainable hydrogen manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 138 companies tracked

RevenueBase identified 138 sustainable hydrogen manufacturers headquartered in the United States as of September 2026 and tracks 5,809 professional contacts across them, including 3,140 with verified work emails. Houston is the largest hub.

This list covers sustainable hydrogen manufacturers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 18, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 18, 2026 86% judged on-target in blind review

138Companies

5,809Contacts tracked

3,140Verified emails

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The 25 largest sustainable hydrogen manufacturers based in the United States

Ranked by team size

Top 25 of 138 sustainable hydrogen manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable hydrogen manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bloom Energy	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 18, 2026	1,001-5,000	2,221 contacts →
	Indirect evidence “Bloom Energy empowers businesses and communities to responsibly take charge of their energy.” Source: RevenueBase Database · checked Sep 18, 2026
2	Plug Power	Partial evidence	Latham, NY, United StatesHQ checked Sep 18, 2026	1,001-5,000	2,037 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 18, 2026
3	Electric Hydrogen	Strong evidence	Devens, MA, United StatesHQ checked Sep 18, 2026	201-500	346 contacts →
	Strong evidence “Electric Hydrogen manufactures, delivers and commissions the world’s most powerful electrolyzers to make clean hydrogen projects economically viable today.” Source: RevenueBase Database · checked Sep 18, 2026
4	HYZON	Partial evidence	Bolingbrook, MI, United StatesHQ checked Sep 18, 2026	201-500	88 contacts →
	Partial evidence “Hyzon (NASDAQ:HYZN) is a global supplier of high-performance hydrogen fuel cell technology focused on providing zero-emission power to decarbonize demanding industries.” Source: RevenueBase Database · checked Sep 18, 2026
5	Verdagy	Partial evidence	Moss Landing, CA, United StatesHQ checked Sep 18, 2026	51-200	76 contacts →
	Partial evidence “Verdagy is innovating advanced electrolysis technology for the large-scale production of clean hydrogen.” Source: RevenueBase Database · checked Sep 18, 2026
6	Bayotech Hydrogen	Partial evidence	Albuquerque, NM, United StatesHQ checked Sep 18, 2026	51-200	52 contacts →
	Partial evidence “BayoTech is committed to addressing the global need for reliable, cost-effective and low-carbon hydrogen.” Source: RevenueBase Database · checked Sep 18, 2026
7	Fourier	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 18, 2026	n/a	45 contacts →
	Partial evidence “Fourier is working on making on-site Hydrogen universally accessible.” Source: RevenueBase Database · checked Sep 18, 2026
8	Evoloh	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 18, 2026	11-50	41 contacts →
	Indirect evidence “Founded in 2020, EVOLOH Inc.” Source: RevenueBase Database · checked Sep 18, 2026
9	Ecolectro	Strong evidence	Ithaca, NY, United StatesHQ checked Sep 18, 2026	11-50	35 contacts →
	Strong evidence “Ecolectro is revolutionizing green hydrogen production with our groundbreaking Anion Exchange Membrane (AEM) technology, enabling affordable and sustainable hydrogen generation…” Source: RevenueBase Database · checked Sep 18, 2026
10	Advanced Ionics	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 18, 2026	11-50	31 contacts →
	Partial evidence “Green hydrogen today is too expensive, driven by sunk costs in fossil technologies, existing infrastructure, and decades of doing things the old way.” Source: RevenueBase Database · checked Sep 18, 2026
11	Versogen	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 18, 2026	11-50	26 contacts →
	Partial evidence “The global energy transition to hydrogen is here, and Versogen is boldly leading the way.” Source: RevenueBase Database · checked Sep 18, 2026
12	Hyperion Companies, INC	Partial evidence	Orange, CA, United StatesHQ checked Sep 18, 2026	51-200	25 contacts →
	Partial evidence “Hyperion Companies was founded in 2011 with the goal of bringing a new wave of clean energy to the market in the form of hydrogen.” Source: RevenueBase Database · checked Sep 18, 2026
13	Q Hydrogen Companies	Strong evidence	Park City, UT, United StatesHQ checked Sep 18, 2026	11-50	15 contacts →
	Strong evidence “Q Hydrogen is redefining the future of energy through the development of our innovative Q Hydrogen -sustainable, cost-effective, and highly-efficient.” Source: RevenueBase Database · checked Sep 18, 2026
14	JOI Scientific	Partial evidence	Kennedy Space Center, FL, United StatesHQ checked Sep 18, 2026	11-50	15 contacts →
	Partial evidence “Joi Scientific was founded by a group of global business leaders, technologists and social entrepreneurs who believe that plentiful hydrogen holds the key to giving the world a…” Source: RevenueBase Database · checked Sep 18, 2026
15	Celadyne Technologies	Partial evidence	Lemont, IL, United StatesHQ checked Sep 18, 2026	1-10	14 contacts →
	Partial evidence “Building hydrogen for industrial decarbonization with durable and efficient fuel cells and electrolyzers” Source: RevenueBase Database · checked Sep 18, 2026
16	ICE Thermal Harvesting	Indirect evidence	Houston, United StatesHQ checked Sep 18, 2026	11-50	13 contacts →
	Indirect evidence “ICE Thermal Harvesting is based in Houston, TX and focuses on supplying zero-emission power in various regions around the world.” Source: RevenueBase Database · checked Sep 18, 2026
17	Element Resources INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 18, 2026	1-10	13 contacts →
	Partial evidence “We are a privately held green hydrogen production company working to make 100% zero-carbon renewable fuel alternatives widely available across the United States.” Source: RevenueBase Database · checked Sep 18, 2026
18	Bison Fuels	Strong evidence	Houston, TX, United StatesHQ checked Sep 18, 2026	1-10	13 contacts →
	Strong evidence “Green hydrogen represents one of our planet’s best hopes for a sustainable future.” Source: RevenueBase Database · checked Sep 18, 2026
19	Clean Hydrogen Technologies, Corp, USA	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	11-50	13 contacts →
	Partial evidence “We produce hydrogen using less energy, at less cost and with less impact to your business We don’t burn natural gas, we process it and produce what’s called Turquoise hydrogen.” Source: RevenueBase Database · checked Sep 18, 2026
20	Newpoint Gas, LLC	Partial evidence	Columbus, TX, United StatesHQ checked Sep 18, 2026	11-50	13 contacts →
	Partial evidence “Newpoint Gas, LLC is currently developing clean hydrogen, carbon sequestration, and manufacturing projects.” Source: RevenueBase Database · checked Sep 18, 2026
21	Element 1	Partial evidence	Bend, OR, United StatesHQ checked Sep 18, 2026	11-50	11 contacts →
	Partial evidence “Element 1 is a global leader in the development of clean energy technologies – including advanced hydrogen generation systems for the fuel cell industry.” Source: RevenueBase Database · checked Sep 18, 2026
22	Ally Power INC	Partial evidence	Hyattsville, MD, United StatesHQ checked Sep 18, 2026	1-10	10 contacts →
	Partial evidence “Ally Power is moving the country to a carbon-free future with our unique two-pronged approach to hydrogen fuel.” Source: RevenueBase Database · checked Sep 18, 2026
23	Green Hydrogen Coalition	Partial evidence	Sacramento, CA, United StatesHQ checked Sep 18, 2026	11-50	10 contacts →
	Partial evidence “Founded in 2019, the Green Hydrogen Coalition (GHC) is the only 501(c)3 non-profit dedicated to deploying green hydrogen at scale for multi-sectoral decarbonization.” Source: RevenueBase Database · checked Sep 18, 2026
24	Splitwaters	Strong evidence	Houston, TX, United StatesHQ checked Sep 18, 2026	51-200	9 contacts →
	Strong evidence “Splitwaters is the leading electrolyzer manufacturer and engineering, procurement, and construction (EPC) company in Houston, TX, and has revolutionized the way green hydrogen…” Source: RevenueBase Database · checked Sep 18, 2026
25	Aquahydrex	Partial evidence	Louisville, CO, United StatesHQ checked Sep 18, 2026	11-50	8 contacts →
	Partial evidence “AquaHydrex is commercializing the ideal water electrolysis platform for producing Green Hydrogen.” Source: RevenueBase Database · checked Sep 18, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sustainable hydrogen manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names sustainable hydrogen manufacturers.
Partial evidence: Its own public description names part of sustainable hydrogen manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable hydrogen manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 138 sustainable hydrogen manufacturers based in the United States

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Sustainable hydrogen manufacturers based in the United States at a glance

As of Sep 18, 2026

54.1%Verified-email coverage

42.1Average contacts per company

1-10Median size (employees)

7.2%Largest-city concentration · Houston

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 138 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sustainable hydrogen manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “sustainable hydrogen manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sustainable hydrogen manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among sustainable hydrogen manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,140 across the full list. 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 18, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sustainable hydrogen manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sustainable hydrogen manufacturers are there based in the United States?

RevenueBase identified 138 sustainable hydrogen manufacturers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Bloom Energy, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most sustainable hydrogen manufacturers?

Houston leads with 10 headquartered companies, followed by New York (9) and Austin (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,140 verified decision-maker contacts tracked across these 138 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 18, 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 Smart Search, 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.