Company lists · Data refreshed October 2026
Top 25 Green hydrogen engineering companies based in the United States
RevenueBase identified 166 company matches for green hydrogen engineering companies associated with the United States as of October 2026 and tracks 3,965 professional contacts across them, including 1,786 with verified work emails. Houston is the largest hub.
This list covers company matches for green hydrogen engineering companies associated with the United States, 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.
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.
The 25 largest green hydrogen engineering companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,024 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 | |||||
| 2 | 285 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 | |||||
| 3 | 155 contacts → | ||||
Exact match “Amogy provides carbon-free energy solutions to decarbonize hard-to-abate sectors like maritime shipping, power generation, and heavy industry.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 4 | 106 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 5 | 91 contacts → | ||||
Exact match “Utility enables economic industrial decarbonization at scale by delivering practical solutions that integrate with existing infrastructure and economics.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 6 | 86 contacts → | ||||
Exact match “Fueling and Service Technologies, Inc.(FASTECH) is an end-to-end energy solutions company.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 7 | 62 contacts → | ||||
Exact match “Verdagy is innovating advanced electrolysis technology for the large-scale production of clean hydrogen.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 8 | 47 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 9 | 44 contacts → | ||||
Exact match “BayoTech is committed to addressing the global need for reliable, cost-effective and low-carbon hydrogen.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 10 | 41 contacts → | ||||
Exact match “Founded in 2020, EVOLOH Inc.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 11 | 35 contacts → | ||||
Exact match “GenH2 is a technology leader in liquid hydrogen infrastructure systems, delivering breakthrough solutions to accelerate the clean energy transition.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 12 | 32 contacts → | ||||
Exact match “Our mission is to accelerate the transition to a clean energy economy.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 13 | 30 contacts → | ||||
Exact match “Green hydrogen today is too expensive, driven by sunk costs in fossil technologies, existing infrastructure, and decades of doing things the old way.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 14 | 27 contacts → | ||||
Exact match “Synergen Green Energy is the Green Ammonia vertical under the aegis of the Skeiron Group.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 15 | 27 contacts → | ||||
Exact match “Ecolectro is revolutionizing green hydrogen production with our groundbreaking Anion Exchange Membrane (AEM) technology, enabling affordable and sustainable hydrogen generation…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 16 | 24 contacts → | ||||
Exact match “The global energy transition to hydrogen is here, and Versogen is boldly leading the way.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 17 | 22 contacts → | ||||
Exact match “GTL is a high-technology company specializing in providing strategic technology breakthroughs and game-changing products to the Hydrogen Economy and the Transportation, Aviation…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 18 | 21 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 19 | 17 contacts → | ||||
Exact match “Q Hydrogen is redefining the future of energy through the development of our innovative Q Hydrogen -sustainable, cost-effective, and highly-efficient.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 20 | 12 contacts → | ||||
Exact match “Building hydrogen for industrial decarbonization with durable and efficient fuel cells and electrolyzers” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 21 | 12 contacts → | ||||
Exact match “Newpoint Gas, LLC is currently developing clean hydrogen, carbon sequestration, and manufacturing projects.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 22 | 11 contacts → | ||||
Exact match “Element 1 is a global leader in the development of clean energy technologies – including advanced hydrogen generation systems for the fuel cell industry.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 23 | 11 contacts → | ||||
Exact match “Ally Power is moving the country to a carbon-free future with our unique two-pronged approach to hydrogen fuel.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 24 | 11 contacts → | ||||
Exact match “We are a privately held green hydrogen production company working to make 100% zero-carbon renewable fuel alternatives widely available across the United States.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 25 | 11 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “green hydrogen engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 166 green hydrogen engineering companies based in the United States
See the full list, filter by size, metro and specialty, and access 1,786 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Green hydrogen engineering companies based in the United States at a glance
As of Oct 13, 2026Companies by employee count
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 166 companies.
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.
- What qualifies
- Company records associated with the United States 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 1,786 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.
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 based in the United States?
RevenueBase identified 166 company matches for green hydrogen engineering companies associated with the United States 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?
Plug Power tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most green hydrogen engineering companies?
Houston leads with 13 company records, followed by New York (8) and Austin (6).
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 1,786 professional contacts with verified work emails tracked across these 166 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.
Ready to reach these companies? Verified emails and direct dials for all 166 green hydrogen engineering companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Green hydrogen engineering companies by geography
- Green hydrogen engineering companies based in Madrid, Spain
- Green hydrogen engineering companies based in London, United Kingdom
- Green hydrogen engineering companies based in Australia
- Green hydrogen engineering companies based in Canada
- Green hydrogen engineering companies based in France
- Green hydrogen engineering companies based in Germany
- Green hydrogen engineering companies based in India
- Green hydrogen engineering companies based in Italy
- Green hydrogen engineering companies based in the Netherlands
- Green hydrogen engineering companies based in Norway
- Green hydrogen engineering companies based in Spain
- Green hydrogen engineering companies based in the United Kingdom
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Green hydrogen engineering companies based in Madrid, Spain
- Green hydrogen engineering companies based in London, United Kingdom
- Green hydrogen engineering companies based in Australia
- Green hydrogen engineering companies based in Canada
- Green hydrogen engineering companies based in France
- Green hydrogen engineering companies based in Germany
Company intelligence · public preview
Top 25 green hydrogen engineering companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 166 matching company records for green hydrogen engineering companies based in the United States, with 3,965 tracked contacts and 1,786 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 13, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 green hydrogen engineering companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Plug Powerplugpower.comHQ: Latham, NY, United StatesReported employees: 1,001-5,000 | Latham, NY, United States | 1,001-5,000 | Exact match | 2,024 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Electric Hydrogeneh2.comHQ: Devens, MA, United StatesReported employees: 201-500 | Devens, MA, United States | 201-500 | Exact match | 285 contacts → |
“Electric Hydrogen manufactures, delivers and commissions the world’s most powerful electrolyzers to make clean hydrogen projects economically viable today.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  AMOGYamogy.coHQ: Brooklyn, United StatesReported employees: 51-200 | Brooklyn, United States | 51-200 | Exact match | 155 contacts → |
“Amogy provides carbon-free energy solutions to decarbonize hard-to-abate sectors like maritime shipping, power generation, and heavy industry.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Oneh2, INConeh2.comHQ: Longview, NC, United StatesReported employees: 51-200 | Longview, NC, United States | 51-200 | Exact match | 106 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 5 |  Utilityutilityglobal.comHQ: Houston, CA, United StatesReported employees: 51-200 | Houston, CA, United States | 51-200 | Exact match | 91 contacts → |
“Utility enables economic industrial decarbonization at scale by delivering practical solutions that integrate with existing infrastructure and economics.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Fastechfastechus.comHQ: Buena Park, CA, United StatesReported employees: 51-200 | Buena Park, CA, United States | 51-200 | Exact match | 86 contacts → |
“Fueling and Service Technologies, Inc.(FASTECH) is an end-to-end energy solutions company.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Verdagyverdagy.comHQ: Moss Landing, CA, United StatesReported employees: 51-200 | Moss Landing, CA, United States | 51-200 | Exact match | 62 contacts → |
“Verdagy is innovating advanced electrolysis technology for the large-scale production of clean hydrogen.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Advent Technologies Holdings, INCadvent.energyHQ: Livermore, CA, United StatesReported employees: 51-200 | Livermore, CA, United States | 51-200 | Exact match | 47 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 |  Bayotech Hydrogenbayotech.usHQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 44 contacts → |
“BayoTech is committed to addressing the global need for reliable, cost-effective and low-carbon hydrogen.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Evolohevoloh.comHQ: Santa Clara, CA, United StatesReported employees: 11-50 | Santa Clara, CA, United States | 11-50 | Exact match | 41 contacts → |
“Founded in 2020, EVOLOH Inc.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Genh2genh2.comHQ: Titusville, FL, United StatesReported employees: 51-200 | Titusville, FL, United States | 51-200 | Exact match | 35 contacts → |
“GenH2 is a technology leader in liquid hydrogen infrastructure systems, delivering breakthrough solutions to accelerate the clean energy transition.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Power To Hydrogenpower-h2.com HQ: Columbus, OH, United StatesReported employees: 11-50 | Columbus, OH, United States | 11-50 | Exact match | 32 contacts → |
“Our mission is to accelerate the transition to a clean energy economy.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Advanced Ionicsadvanced-ionics.comHQ: Milwaukee, WI, United StatesReported employees: 11-50 | Milwaukee, WI, United States | 11-50 | Exact match | 30 contacts → |
“Green hydrogen today is too expensive, driven by sunk costs in fossil technologies, existing infrastructure, and decades of doing things the old way.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Synergen Green Energysynergengreen.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 27 contacts → |
“Synergen Green Energy is the Green Ammonia vertical under the aegis of the Skeiron Group.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Ecolectroecolectro.comHQ: Ithaca, NY, United StatesReported employees: 11-50 | Ithaca, NY, United States | 11-50 | Exact match | 27 contacts → |
“Ecolectro is revolutionizing green hydrogen production with our groundbreaking Anion Exchange Membrane (AEM) technology, enabling affordable and sustainable hydrogen generation…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Versogenversogen.com HQ: Wilmington, DE, United StatesReported employees: 11-50 | Wilmington, DE, United States | 11-50 | Exact match | 24 contacts → |
“The global energy transition to hydrogen is here, and Versogen is boldly leading the way.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Gloyer-Taylor Laboratories, INCgtlcompany.com HQ: Tullahoma, TN, United StatesReported employees: 11-50 | Tullahoma, TN, United States | 11-50 | Exact match | 22 contacts → |
“GTL is a high-technology company specializing in providing strategic technology breakthroughs and game-changing products to the Hydrogen Economy and the Transportation, Aviation…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Hyperion Companies, INChyperion.incHQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 21 contacts → |
“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.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Q Hydrogen Companiesqhydrogen.com HQ: Park City, UT, United StatesReported employees: 11-50 | Park City, UT, United States | 11-50 | Exact match | 17 contacts → |
“Q Hydrogen is redefining the future of energy through the development of our innovative Q Hydrogen -sustainable, cost-effective, and highly-efficient.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Celadyne Technologiesceladynetech.comHQ: Lemont, IL, United StatesReported employees: 1-10 | Lemont, IL, United States | 1-10 | Exact match | 12 contacts → |
“Building hydrogen for industrial decarbonization with durable and efficient fuel cells and electrolyzers” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Newpoint Gas, LLCnewpointgas.com HQ: Columbus, TX, United StatesReported employees: 11-50 | Columbus, TX, United States | 11-50 | Exact match | 12 contacts → |
“Newpoint Gas, LLC is currently developing clean hydrogen, carbon sequestration, and manufacturing projects.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Element 1e1na.comHQ: Bend, OR, United StatesReported employees: 11-50 | Bend, OR, United States | 11-50 | Exact match | 11 contacts → |
“Element 1 is a global leader in the development of clean energy technologies – including advanced hydrogen generation systems for the fuel cell industry.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ally Power INCallypowerinc.comHQ: Hyattsville, MD, United StatesReported employees: 1-10 | Hyattsville, MD, United States | 1-10 | Exact match | 11 contacts → |
“Ally Power is moving the country to a carbon-free future with our unique two-pronged approach to hydrogen fuel.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Element Resources INCelementresources.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 11 contacts → |
“We are a privately held green hydrogen production company working to make 100% zero-carbon renewable fuel alternatives widely available across the United States.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Green Hydrogen Coalitionghcoalition.org HQ: Sacramento, CA, United StatesReported employees: 11-50 | Sacramento, CA, United States | 11-50 | Exact match | 11 contacts → |
“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.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 166 company matches
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Green hydrogen engineering companies: dataset insights
October 13, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
166 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 166 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 13, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for green hydrogen engineering companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many green hydrogen engineering companies did RevenueBase find based in the United States?
The saved snapshot records 166 matching company records, 3,965 tracked contacts and 1,786 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 13, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Green hydrogen engineering companies by geography
- Green hydrogen engineering companies based in Madrid, Spain
- Green hydrogen engineering companies based in London, United Kingdom
- Green hydrogen engineering companies based in Australia
- Green hydrogen engineering companies based in Canada
- Green hydrogen engineering companies based in France
- Green hydrogen engineering companies based in Germany
- Green hydrogen engineering companies based in India
- Green hydrogen engineering companies based in Italy
- Green hydrogen engineering companies based in the Netherlands
- Green hydrogen engineering companies based in Norway
- Green hydrogen engineering companies based in Spain
- Green hydrogen engineering companies based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 green hydrogen engineering companies based in the United States. Snapshot: October 13, 2026. https://revenuebase.ai/companies/green-hydrogen-engineering-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Green hydrogen engineering companies based in Madrid, Spain
- Green hydrogen engineering companies based in London, United Kingdom
- Green hydrogen engineering companies based in Australia
- Green hydrogen engineering companies based in Canada
- Green hydrogen engineering companies based in France
- Green hydrogen engineering companies based in Germany
Company intelligence · public preview
Top 25 green hydrogen engineering companies based in the United States
RevenueBase records 166 matching company records for green hydrogen engineering companies based in the United States, with 3,965 tracked contacts and 1,786 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 13, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 green hydrogen engineering companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Plug Powerplugpower.com HQ: Latham, NY, United StatesReported employees: 1,001-5,000 | Latham, NY, United States | 1,001-5,000 | Exact match | 2,024 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Electric Hydrogeneh2.com HQ: Devens, MA, United StatesReported employees: 201-500 | Devens, MA, United States | 201-500 | Exact match | 285 contacts → |
“Electric Hydrogen manufactures, delivers and commissions the world’s most powerful electrolyzers to make clean hydrogen projects economically viable today.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | AMOGYamogy.co HQ: Brooklyn, United StatesReported employees: 51-200 | Brooklyn, United States | 51-200 | Exact match | 155 contacts → |
“Amogy provides carbon-free energy solutions to decarbonize hard-to-abate sectors like maritime shipping, power generation, and heavy industry.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Oneh2, INConeh2.com HQ: Longview, NC, United StatesReported employees: 51-200 | Longview, NC, United States | 51-200 | Exact match | 106 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 5 | Utilityutilityglobal.com HQ: Houston, CA, United StatesReported employees: 51-200 | Houston, CA, United States | 51-200 | Exact match | 91 contacts → |
“Utility enables economic industrial decarbonization at scale by delivering practical solutions that integrate with existing infrastructure and economics.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Fastechfastechus.com HQ: Buena Park, CA, United StatesReported employees: 51-200 | Buena Park, CA, United States | 51-200 | Exact match | 86 contacts → |
“Fueling and Service Technologies, Inc.(FASTECH) is an end-to-end energy solutions company.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Verdagyverdagy.com HQ: Moss Landing, CA, United StatesReported employees: 51-200 | Moss Landing, CA, United States | 51-200 | Exact match | 62 contacts → |
“Verdagy is innovating advanced electrolysis technology for the large-scale production of clean hydrogen.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Advent Technologies Holdings, INCadvent.energy HQ: Livermore, CA, United StatesReported employees: 51-200 | Livermore, CA, United States | 51-200 | Exact match | 47 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | Bayotech Hydrogenbayotech.us HQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 44 contacts → |
“BayoTech is committed to addressing the global need for reliable, cost-effective and low-carbon hydrogen.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Evolohevoloh.com HQ: Santa Clara, CA, United StatesReported employees: 11-50 | Santa Clara, CA, United States | 11-50 | Exact match | 41 contacts → |
“Founded in 2020, EVOLOH Inc.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Genh2genh2.com HQ: Titusville, FL, United StatesReported employees: 51-200 | Titusville, FL, United States | 51-200 | Exact match | 35 contacts → |
“GenH2 is a technology leader in liquid hydrogen infrastructure systems, delivering breakthrough solutions to accelerate the clean energy transition.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Power To Hydrogenpower-h2.com HQ: Columbus, OH, United StatesReported employees: 11-50 | Columbus, OH, United States | 11-50 | Exact match | 32 contacts → |
“Our mission is to accelerate the transition to a clean energy economy.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Advanced Ionicsadvanced-ionics.com HQ: Milwaukee, WI, United StatesReported employees: 11-50 | Milwaukee, WI, United States | 11-50 | Exact match | 30 contacts → |
“Green hydrogen today is too expensive, driven by sunk costs in fossil technologies, existing infrastructure, and decades of doing things the old way.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Synergen Green Energysynergengreen.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 27 contacts → |
“Synergen Green Energy is the Green Ammonia vertical under the aegis of the Skeiron Group.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ecolectroecolectro.com HQ: Ithaca, NY, United StatesReported employees: 11-50 | Ithaca, NY, United States | 11-50 | Exact match | 27 contacts → |
“Ecolectro is revolutionizing green hydrogen production with our groundbreaking Anion Exchange Membrane (AEM) technology, enabling affordable and sustainable hydrogen generation…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Versogenversogen.com HQ: Wilmington, DE, United StatesReported employees: 11-50 | Wilmington, DE, United States | 11-50 | Exact match | 24 contacts → |
“The global energy transition to hydrogen is here, and Versogen is boldly leading the way.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Gloyer-Taylor Laboratories, INCgtlcompany.com HQ: Tullahoma, TN, United StatesReported employees: 11-50 | Tullahoma, TN, United States | 11-50 | Exact match | 22 contacts → |
“GTL is a high-technology company specializing in providing strategic technology breakthroughs and game-changing products to the Hydrogen Economy and the Transportation, Aviation…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hyperion Companies, INChyperion.inc HQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 21 contacts → |
“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.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Q Hydrogen Companiesqhydrogen.com HQ: Park City, UT, United StatesReported employees: 11-50 | Park City, UT, United States | 11-50 | Exact match | 17 contacts → |
“Q Hydrogen is redefining the future of energy through the development of our innovative Q Hydrogen -sustainable, cost-effective, and highly-efficient.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Celadyne Technologiesceladynetech.com HQ: Lemont, IL, United StatesReported employees: 1-10 | Lemont, IL, United States | 1-10 | Exact match | 12 contacts → |
“Building hydrogen for industrial decarbonization with durable and efficient fuel cells and electrolyzers” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Newpoint Gas, LLCnewpointgas.com HQ: Columbus, TX, United StatesReported employees: 11-50 | Columbus, TX, United States | 11-50 | Exact match | 12 contacts → |
“Newpoint Gas, LLC is currently developing clean hydrogen, carbon sequestration, and manufacturing projects.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Element 1e1na.com HQ: Bend, OR, United StatesReported employees: 11-50 | Bend, OR, United States | 11-50 | Exact match | 11 contacts → |
“Element 1 is a global leader in the development of clean energy technologies – including advanced hydrogen generation systems for the fuel cell industry.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ally Power INCallypowerinc.com HQ: Hyattsville, MD, United StatesReported employees: 1-10 | Hyattsville, MD, United States | 1-10 | Exact match | 11 contacts → |
“Ally Power is moving the country to a carbon-free future with our unique two-pronged approach to hydrogen fuel.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Element Resources INCelementresources.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 11 contacts → |
“We are a privately held green hydrogen production company working to make 100% zero-carbon renewable fuel alternatives widely available across the United States.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Green Hydrogen Coalitionghcoalition.org HQ: Sacramento, CA, United StatesReported employees: 11-50 | Sacramento, CA, United States | 11-50 | Exact match | 11 contacts → |
“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.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Green hydrogen engineering companies: dataset insights
October 13, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
166 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 166 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 13, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for green hydrogen engineering companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many green hydrogen engineering companies did RevenueBase find based in the United States?
The saved snapshot records 166 matching company records, 3,965 tracked contacts and 1,786 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 13, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Green hydrogen engineering companies by geography
- Green hydrogen engineering companies based in Madrid, Spain
- Green hydrogen engineering companies based in London, United Kingdom
- Green hydrogen engineering companies based in Australia
- Green hydrogen engineering companies based in Canada
- Green hydrogen engineering companies based in France
- Green hydrogen engineering companies based in Germany
- Green hydrogen engineering companies based in India
- Green hydrogen engineering companies based in Italy
- Green hydrogen engineering companies based in the Netherlands
- Green hydrogen engineering companies based in Norway
- Green hydrogen engineering companies based in Spain
- Green hydrogen engineering companies based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 green hydrogen engineering companies based in the United States. Snapshot: October 13, 2026. https://revenuebase.ai/companies/green-hydrogen-engineering-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Green hydrogen engineering companies based in Madrid, Spain
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- Green hydrogen engineering companies based in Australia
- Green hydrogen engineering companies based in Canada
- Green hydrogen engineering companies based in France
- Green hydrogen engineering companies based in Germany