Company lists · Data refreshed September 2026

Top 25 Renewable hydrogen producers based in the United States

RevenueBase identified 83 renewable hydrogen producers headquartered in the United States as of September 2026 and tracks 3,386 professional contacts across them, including 1,567 with verified work emails. New York is the largest hub.

This list covers renewable hydrogen producers 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 17, 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 17, 2026 86% judged on-target in blind review
83Companies
3,386Contacts tracked
1,567Verified emails
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The 25 largest renewable hydrogen producers based in the United States

Ranked by team size
Top 25 of 83 renewable hydrogen producers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable hydrogen producers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLatham, NY, United StatesHQ checked Sep 17, 20261,001-5,0002,037 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 17, 2026
2Partial evidenceDevens, MA, United StatesHQ checked Sep 17, 2026201-500346 contacts →

Partial 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 17, 2026
3Indirect evidenceLongview, NC, United StatesHQ checked Sep 17, 202651-200130 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceMoss Landing, CA, United StatesHQ checked Sep 17, 202651-20076 contacts →

Partial evidence

“Verdagy is innovating advanced electrolysis technology for the large-scale production of clean hydrogen.”

Source: RevenueBase Database · checked Sep 17, 2026
5Partial evidenceAlbuquerque, NM, United StatesHQ checked Sep 17, 202651-20052 contacts →

Partial evidence

“BayoTech is committed to addressing the global need for reliable, cost-effective and low-carbon hydrogen.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidencePalo Alto, CA, United StatesHQ checked Sep 17, 2026n/a45 contacts →

Partial evidence

“Fourier is working on making on-site Hydrogen universally accessible.”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 17, 202611-5041 contacts →

Indirect evidence

“Founded in 2020, EVOLOH Inc.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceIthaca, NY, United StatesHQ checked Sep 17, 202611-5035 contacts →

Partial 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 17, 2026
9Partial evidenceWilmington, DE, United StatesHQ checked Sep 17, 202611-5026 contacts →

Partial evidence

“The global energy transition to hydrogen is here, and Versogen is boldly leading the way.”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidencePark City, UT, United StatesHQ checked Sep 17, 202611-5015 contacts →

Partial 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 17, 2026
11Partial evidenceKennedy Space Center, FL, United StatesHQ checked Sep 17, 202611-5015 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 17, 2026
12Partial evidenceLemont, IL, United StatesHQ checked Sep 17, 20261-1014 contacts →

Partial evidence

“Building hydrogen for industrial decarbonization with durable and efficient fuel cells and electrolyzers”

Source: RevenueBase Database · checked Sep 17, 2026
13Strong evidenceHouston, TX, United StatesHQ checked Sep 17, 20261-1013 contacts →

Strong 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 17, 2026
14Partial evidenceHouston, TX, United StatesHQ checked Sep 17, 20261-1013 contacts →

Partial evidence

“Green hydrogen represents one of our planet’s best hopes for a sustainable future.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceBend, OR, United StatesHQ checked Sep 17, 202611-5011 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 17, 2026
16Partial evidenceHouston, TX, United StatesHQ checked Sep 17, 202651-2009 contacts →

Partial 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 17, 2026
17Partial evidenceLouisville, CO, United StatesHQ checked Sep 17, 202611-508 contacts →

Partial evidence

“AquaHydrex is commercializing the ideal water electrolysis platform for producing Green Hydrogen.”

Source: RevenueBase Database · checked Sep 17, 2026
18Partial evidenceWaltham, MA, United StatesHQ checked Sep 17, 20261-108 contacts →

Partial evidence

“Ivys Energy Solutions, building on its founders’ decades of experience in the hydrogen fuel cell industry, is developing innovative technologies and products that will make a…”

Source: RevenueBase Database · checked Sep 17, 2026
19Strong evidencePortland, OR, United StatesHQ checked Sep 17, 20261-108 contacts →

Strong evidence

“RHA is a nonprofit trade association dedicated to promoting the production of hydrogen from renewable energy.”

Source: RevenueBase Database · checked Sep 17, 2026
20Partial evidenceHouston, TX, United StatesHQ checked Sep 17, 20261-107 contacts →

Partial evidence

HydrogenXT – Changing the Way the World Moves HydrogenXT, headquartered in Houston, Texas is at the forefront of a seismic shift in global energy production, pioneering a clean…”

Source: RevenueBase Database · checked Sep 17, 2026
21Partial evidencePasadena, CA, United StatesHQ checked Sep 17, 20261-106 contacts →

Partial evidence

“HGenium is focused on achieving the first commercialization of sustainable green hydrogen (H2) production via thermochemical water splitting using heat at temperatures below one…”

Source: RevenueBase Database · checked Sep 17, 2026
22Partial evidenceAustin, TX, United StatesHQ checked Sep 17, 202611-505 contacts →

Partial evidence

“Agastya Hydrogen is an Indian multinational clean energy technology company pioneering cost-effective, high-efficiency AEM electrolyzers, modular hydrogen refuelling stations, and…”

Source: RevenueBase Database · checked Sep 17, 2026
23Indirect evidenceSpokane, AZ, United StatesHQ checked Sep 17, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
24Partial evidenceShort Hills, NJ, United StatesHQ checked Sep 17, 202611-505 contacts →

Partial evidence

“Avina is a pioneer in the green hydrogen sector with an advanced and diverse portfolio of clean hydrogen plants under development and access to proprietary technology solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
25Partial evidenceGolden, CO, United StatesHQ checked Sep 17, 20261-105 contacts →

Partial evidence

“Our mission is to accelerate green hydrogen where it is needed most.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 83 renewable hydrogen producers based in the United States

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Renewable hydrogen producers based in the United States at a glance

As of Sep 17, 2026
46.3%Verified-email coverage
40.8Average contacts per company
1-10Median size (employees)
6.0%Largest-city concentration · New York
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
47
11-50
27
51-200
6
201-500
2
1,001-5,000
1

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 83 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 renewable hydrogen producers, 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 “renewable hydrogen producers”. 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 renewable hydrogen producers), 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 renewable hydrogen producers, 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, 1,567 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 17, 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 renewable hydrogen producers, 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 renewable hydrogen producers are there based in the United States?

RevenueBase identified 83 renewable hydrogen producers 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?

Plug Power, headquartered in Latham, tops this list with the largest team on record.

Which city has the most renewable hydrogen producers?

New York leads with 5 headquartered companies, followed by Austin (4) and Houston (4).

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 1,567 verified decision-maker contacts tracked across these 83 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 17, 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.