Company lists · Data refreshed September 2026
Top 25 Hydrogen consulting firms based in the United States
RevenueBase identified 128 company matches for hydrogen consulting firms associated with the United States as of September 2026 and tracks 792 professional contacts across them, including 336 with verified work emails and 318 with mobile numbers. Houston is the largest hub.
This list covers company matches for hydrogen consulting firms 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 September 3, 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 hydrogen consulting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 128 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 2 | 46 contacts → | ||||
Exact match “EXCEL has evolved over the last four decades to meet the needs of the nuclear energy industry.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 3 | 33 contacts → | ||||
Exact match “Steelhead Composites is a world-class advanced manufacturing company, based in Golden, Colorado (USA).” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 4 | 28 contacts → | ||||
Exact match “At Stillwater, our associates leverage decades of work at major oil companies to help clients navigate challenges with the highest level of industry knowledge, strategic thinking…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 5 | 28 contacts → | ||||
Exact match “Information Trends is a premier market research firm based in Sterling, Virginia.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 6 | 27 contacts → | ||||
Exact match “Krishnan & Associates (K&A) is a full service power and energy industry consulting firm providing specialized marketing, market analytics, mergers & acquisitions and recruitment…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 7 | 23 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 · Sep 3, 2026 · View company records in RevenueBase | |||||
| 8 | 20 contacts → | ||||
Exact match “INNOVATIVE TECHNOLOGY PARTNERSHIPS LLC (ITP) conducts consulting for High Reliability Organizations (HROs) in the nuclear community.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 9 | 20 contacts → | ||||
Exact match “HOS Resources is a Lafayette, Louisiana-based energy consulting company.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 10 | 17 contacts → | ||||
Exact match “H2C is committed to accelerating the hydrogen economy by providing a breakthrough in the transportation and infrastructure required to bring green hydrogen to market now at a…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 11 | 14 contacts → | ||||
Exact match “We are an Atlanta-based energy research and consulting NGO equipped with sophisticated analytical technologies and deep industry knowledge in the clean energy space.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 12 | 13 contacts → | ||||
Exact match “Pearson Adair & Co, is an energy consulting practice founded on decades of industry experience.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 13 | 13 contacts → | ||||
Exact match “Bison Fuels develops hydrogen, advanced fuels, and distributed power infrastructure for industrial customers.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 14 | 13 contacts → | ||||
Exact match “APenergy (Air Power USA) is an independent and brand neutral consulting firm that has maintained that objectivity since our founding 35 years ago.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 15 | 11 contacts → | ||||
Exact match “FPoliSolutions specializes in the execution of complex analytical projects for industry segments that demands absolute reliability and safety.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 16 | 9 contacts → | ||||
Exact match “Greenway Energy is a group of dynamic and innovative consultants in the areas of hydrogen and methanol fuel cell technology and education.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 17 | 9 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “The Green Hydrogen Company Engineering | Manufacturing | Contracting” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “Your Renewable Energy Consultants of Choice!” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 20 | 6 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 21 | 6 contacts → | ||||
Exact match “EPC - Is the premier hydrogen infrastructure design, procurement, construction, and fabrication company leading the charge towards a sustainable hydrogen future.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “We are an engineering design firm serving the renewable energy, hydrogen and traditional oil & gas industries.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “KYLE Groundwater, Inc, was founded in response to demand for experienced and innovative hydrogeological solutions from our Southern California clients.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “Aion Energy LLC (Aion) provides strategic consulting services to the energy industry.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match “Main Line Energy Consultants LLC, a Westwood team (MLEC), has fully transitioned to Westwood after being acquired in 2019.” Recorded in the RevenueBase company graph · Sep 3, 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 “hydrogen consulting firms”. 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 128 hydrogen consulting firms based in the United States
See the full list, filter by size, metro and specialty, and access 336 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Hydrogen consulting firms based in the United States at a glance
As of Sep 3, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 “hydrogen consulting firms” 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 336 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 September 3, 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 “hydrogen consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many hydrogen consulting firms are there based in the United States?
RevenueBase identified 128 company matches for hydrogen consulting firms associated with the United States as of September 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?
Oneh2, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most hydrogen consulting firms?
Houston leads with 14 company records, followed by New York (5) and Denver (3).
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 336 professional contacts with verified work emails tracked across these 128 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 September 3, 2026.
Ready to reach these companies? Verified emails and direct dials for all 128 hydrogen consulting firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Hydrogen consulting firms by geography
- Hydrogen consulting firms based in Germany
- Hydrogen consulting firms based in the United Kingdom
- Hydrogen consulting firms based in France
- Hydrogen consulting firms based in Canada
- Hydrogen consulting firms based in Brazil
- Hydrogen consulting firms based in Australia
- Hydrogen consulting firms based in Italy
- Hydrogen consulting firms based in the Netherlands
- Hydrogen consulting firms based in London, 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
- Hydrogen consulting firms based in Germany
- Hydrogen consulting firms based in the United Kingdom
- Hydrogen consulting firms based in France
- Hydrogen consulting firms based in Canada
- Hydrogen consulting firms based in Brazil
- Hydrogen consulting firms based in Australia
Company intelligence · public preview
Top 25 hydrogen consulting firms 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 128 matching company records for hydrogen consulting firms based in the United States, with 792 tracked contacts and 336 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: September 3, 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 hydrogen consulting firms 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 |  Oneh2, INConeh2.comHQ: Longview, NC, United StatesReported employees: 51-200 | Longview, NC, United States | 51-200 | Exact match | 128 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 |  Excel Services Corporationexcelservices.comHQ: Rockville, MD, United StatesReported employees: 51-200 | Rockville, MD, United States | 51-200 | Exact match | 46 contacts → |
“EXCEL has evolved over the last four decades to meet the needs of the nuclear energy industry.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Steelhead Compositessteelheadcomposites.comHQ: Golden, United StatesReported employees: 51-200 | Golden, United States | 51-200 | Exact match | 33 contacts → |
“Steelhead Composites is a world-class advanced manufacturing company, based in Golden, Colorado (USA).” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Stillwater Associates LLCstillwaterassociates.comHQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 28 contacts → |
“At Stillwater, our associates leverage decades of work at major oil companies to help clients navigate challenges with the highest level of industry knowledge, strategic thinking…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Information Trendsinformationtrends.comHQ: Sterling, VA, United StatesReported employees: 11-50 | Sterling, VA, United States | 11-50 | Exact match | 28 contacts → |
“Information Trends is a premier market research firm based in Sterling, Virginia.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Krishnan & Associates, INCkrishnaninc.comHQ: Stamford, OH, United StatesReported employees: 11-50 | Stamford, OH, United States | 11-50 | Exact match | 27 contacts → |
“Krishnan & Associates (K&A) is a full service power and energy industry consulting firm providing specialized marketing, market analytics, mergers & acquisitions and recruitment…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Hyperion Companies, INChyperion.incHQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 23 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 · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 20 contacts → |
“INNOVATIVE TECHNOLOGY PARTNERSHIPS LLC (ITP) conducts consulting for High Reliability Organizations (HROs) in the nuclear community.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  HOS Resources, LLChosresources.comHQ: Lafayette, United StatesReported employees: 11-50 | Lafayette, United States | 11-50 | Exact match | 20 contacts → |
“HOS Resources is a Lafayette, Louisiana-based energy consulting company.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  H2c H2 Clipper, INC H2c Safety Pipe, INCh2clipper.comHQ: Santa Barbara, CA, United StatesReported employees: 11-50 | Santa Barbara, CA, United States | 11-50 | Exact match | 17 contacts → |
“H2C is committed to accelerating the hydrogen economy by providing a breakthrough in the transportation and infrastructure required to bring green hydrogen to market now at a…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Greenlink Analyticsgreenlinkanalytics.orgHQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 14 contacts → |
“We are an Atlanta-based energy research and consulting NGO equipped with sophisticated analytical technologies and deep industry knowledge in the clean energy space.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Pearson Adair & COpearsonadair.comHQ: Plano, TX, United StatesReported employees: 1-10 | Plano, TX, United States | 1-10 | Exact match | 13 contacts → |
“Pearson Adair & Co, is an energy consulting practice founded on decades of industry experience.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Bison Fuelsbisonfuels.comHQ: New York Ny Houston, TX, United StatesReported employees: 11-50 | New York Ny Houston, TX, United States | 11-50 | Exact match | 13 contacts → |
“Bison Fuels develops hydrogen, advanced fuels, and distributed power infrastructure for industrial customers.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Apenergyapenergy.comHQ: Gahanna, OH, United StatesReported employees: 11-50 | Gahanna, OH, United States | 11-50 | Exact match | 13 contacts → |
“APenergy (Air Power USA) is an independent and brand neutral consulting firm that has maintained that objectivity since our founding 35 years ago.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Fpolisolutionsfpolisolutions.comHQ: Pittsburgh, PA, United StatesReported employees: 1-10 | Pittsburgh, PA, United States | 1-10 | Exact match | 11 contacts → |
“FPoliSolutions specializes in the execution of complex analytical projects for industry segments that demands absolute reliability and safety.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Greenway Energy LLCgreenway-energy.comHQ: Aiken, SC, United StatesReported employees: 1-10 | Aiken, SC, United States | 1-10 | Exact match | 9 contacts → |
“Greenway Energy is a group of dynamic and innovative consultants in the areas of hydrogen and methanol fuel cell technology and education.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Watson Millican & COwatsonmillican.com HQ: Allen, TX, United StatesReported employees: 1-10 | Allen, TX, United States | 1-10 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Element ONE Energyelement1nrg.com HQ: Colorado Springs, CO, United StatesReported employees: 11-50 | Colorado Springs, CO, United States | 11-50 | Exact match | 6 contacts → |
“The Green Hydrogen Company Engineering | Manufacturing | Contracting” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Renewable Power AZrenewablepoweraz.comHQ: Yuma, AZ, United StatesReported employees: 11-50 | Yuma, AZ, United States | 11-50 | Exact match | 6 contacts → |
“Your Renewable Energy Consultants of Choice!” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Stancil & COstancilco.comHQ: Irving, TX, United StatesReported employees: 11-50 | Irving, TX, United States | 11-50 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | HQ: Cheyenne, WY, United StatesReported employees: 11-50 | Cheyenne, WY, United States | 11-50 | Exact match | 6 contacts → |
“EPC - Is the premier hydrogen infrastructure design, procurement, construction, and fabrication company leading the charge towards a sustainable hydrogen future.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Creo Engineering Design & Consultingcreoedc.comHQ: Fort Worth, TX, United StatesReported employees: 1-10 | Fort Worth, TX, United States | 1-10 | Exact match | 5 contacts → |
“We are an engineering design firm serving the renewable energy, hydrogen and traditional oil & gas industries.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Kyle Groundwater, INCkylegroundwater.comHQ: Pomona, CA, United StatesReported employees: 1-10 | Pomona, CA, United States | 1-10 | Exact match | 4 contacts → |
“KYLE Groundwater, Inc, was founded in response to demand for experienced and innovative hydrogeological solutions from our Southern California clients.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Aion Energy LLCaionenergyllc.comHQ: Orlando, FL, United StatesReported employees: 1-10 | Orlando, FL, United States | 1-10 | Exact match | 3 contacts → |
“Aion Energy LLC (Aion) provides strategic consulting services to the energy industry.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Lansdale, PA, United StatesReported employees: 51-200 | Lansdale, PA, United States | 51-200 | Exact match | 3 contacts → |
“Main Line Energy Consultants LLC, a Westwood team (MLEC), has fully transitioned to Westwood after being acquired in 2019.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 128 company matches
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Hydrogen consulting firms: dataset insights
September 3, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
128 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.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 3, 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 hydrogen consulting firms?
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 hydrogen consulting firms did RevenueBase find based in the United States?
The saved snapshot records 128 matching company records, 792 tracked contacts and 336 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: September 3, 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
Hydrogen consulting firms by geography
- Hydrogen consulting firms based in Germany
- Hydrogen consulting firms based in the United Kingdom
- Hydrogen consulting firms based in France
- Hydrogen consulting firms based in Canada
- Hydrogen consulting firms based in Brazil
- Hydrogen consulting firms based in Australia
- Hydrogen consulting firms based in Italy
- Hydrogen consulting firms based in the Netherlands
- Hydrogen consulting firms based in London, United Kingdom
Cite this list
RevenueBase Data Team. Top 25 hydrogen consulting firms based in the United States. Snapshot: September 3, 2026. https://revenuebase.ai/companies/hydrogen-consulting-firms/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
- Hydrogen consulting firms based in Germany
- Hydrogen consulting firms based in the United Kingdom
- Hydrogen consulting firms based in France
- Hydrogen consulting firms based in Canada
- Hydrogen consulting firms based in Brazil
- Hydrogen consulting firms based in Australia
Company intelligence · public preview
Top 25 hydrogen consulting firms based in the United States
RevenueBase records 128 matching company records for hydrogen consulting firms based in the United States, with 792 tracked contacts and 336 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: September 3, 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 hydrogen consulting firms 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 | Oneh2, INConeh2.com HQ: Longview, NC, United StatesReported employees: 51-200 | Longview, NC, United States | 51-200 | Exact match | 128 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 | Excel Services Corporationexcelservices.com HQ: Rockville, MD, United StatesReported employees: 51-200 | Rockville, MD, United States | 51-200 | Exact match | 46 contacts → |
“EXCEL has evolved over the last four decades to meet the needs of the nuclear energy industry.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Steelhead Compositessteelheadcomposites.com HQ: Golden, United StatesReported employees: 51-200 | Golden, United States | 51-200 | Exact match | 33 contacts → |
“Steelhead Composites is a world-class advanced manufacturing company, based in Golden, Colorado (USA).” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Stillwater Associates LLCstillwaterassociates.com HQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 28 contacts → |
“At Stillwater, our associates leverage decades of work at major oil companies to help clients navigate challenges with the highest level of industry knowledge, strategic thinking…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Information Trendsinformationtrends.com HQ: Sterling, VA, United StatesReported employees: 11-50 | Sterling, VA, United States | 11-50 | Exact match | 28 contacts → |
“Information Trends is a premier market research firm based in Sterling, Virginia.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Krishnan & Associates, INCkrishnaninc.com HQ: Stamford, OH, United StatesReported employees: 11-50 | Stamford, OH, United States | 11-50 | Exact match | 27 contacts → |
“Krishnan & Associates (K&A) is a full service power and energy industry consulting firm providing specialized marketing, market analytics, mergers & acquisitions and recruitment…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Hyperion Companies, INChyperion.inc HQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 23 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 · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 20 contacts → |
“INNOVATIVE TECHNOLOGY PARTNERSHIPS LLC (ITP) conducts consulting for High Reliability Organizations (HROs) in the nuclear community.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HOS Resources, LLChosresources.com HQ: Lafayette, United StatesReported employees: 11-50 | Lafayette, United States | 11-50 | Exact match | 20 contacts → |
“HOS Resources is a Lafayette, Louisiana-based energy consulting company.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | H2c H2 Clipper, INC H2c Safety Pipe, INCh2clipper.com HQ: Santa Barbara, CA, United StatesReported employees: 11-50 | Santa Barbara, CA, United States | 11-50 | Exact match | 17 contacts → |
“H2C is committed to accelerating the hydrogen economy by providing a breakthrough in the transportation and infrastructure required to bring green hydrogen to market now at a…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Greenlink Analyticsgreenlinkanalytics.org HQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 14 contacts → |
“We are an Atlanta-based energy research and consulting NGO equipped with sophisticated analytical technologies and deep industry knowledge in the clean energy space.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Pearson Adair & COpearsonadair.com HQ: Plano, TX, United StatesReported employees: 1-10 | Plano, TX, United States | 1-10 | Exact match | 13 contacts → |
“Pearson Adair & Co, is an energy consulting practice founded on decades of industry experience.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Bison Fuelsbisonfuels.com HQ: New York Ny Houston, TX, United StatesReported employees: 11-50 | New York Ny Houston, TX, United States | 11-50 | Exact match | 13 contacts → |
“Bison Fuels develops hydrogen, advanced fuels, and distributed power infrastructure for industrial customers.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Apenergyapenergy.com HQ: Gahanna, OH, United StatesReported employees: 11-50 | Gahanna, OH, United States | 11-50 | Exact match | 13 contacts → |
“APenergy (Air Power USA) is an independent and brand neutral consulting firm that has maintained that objectivity since our founding 35 years ago.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Fpolisolutionsfpolisolutions.com HQ: Pittsburgh, PA, United StatesReported employees: 1-10 | Pittsburgh, PA, United States | 1-10 | Exact match | 11 contacts → |
“FPoliSolutions specializes in the execution of complex analytical projects for industry segments that demands absolute reliability and safety.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Greenway Energy LLCgreenway-energy.com HQ: Aiken, SC, United StatesReported employees: 1-10 | Aiken, SC, United States | 1-10 | Exact match | 9 contacts → |
“Greenway Energy is a group of dynamic and innovative consultants in the areas of hydrogen and methanol fuel cell technology and education.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Watson Millican & COwatsonmillican.com HQ: Allen, TX, United StatesReported employees: 1-10 | Allen, TX, United States | 1-10 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Element ONE Energyelement1nrg.com HQ: Colorado Springs, CO, United StatesReported employees: 11-50 | Colorado Springs, CO, United States | 11-50 | Exact match | 6 contacts → |
“The Green Hydrogen Company Engineering | Manufacturing | Contracting” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Renewable Power AZrenewablepoweraz.com HQ: Yuma, AZ, United StatesReported employees: 11-50 | Yuma, AZ, United States | 11-50 | Exact match | 6 contacts → |
“Your Renewable Energy Consultants of Choice!” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Stancil & COstancilco.com HQ: Irving, TX, United StatesReported employees: 11-50 | Irving, TX, United States | 11-50 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | HQ: Cheyenne, WY, United StatesReported employees: 11-50 | Cheyenne, WY, United States | 11-50 | Exact match | 6 contacts → |
“EPC - Is the premier hydrogen infrastructure design, procurement, construction, and fabrication company leading the charge towards a sustainable hydrogen future.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Creo Engineering Design & Consultingcreoedc.com HQ: Fort Worth, TX, United StatesReported employees: 1-10 | Fort Worth, TX, United States | 1-10 | Exact match | 5 contacts → |
“We are an engineering design firm serving the renewable energy, hydrogen and traditional oil & gas industries.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Kyle Groundwater, INCkylegroundwater.com HQ: Pomona, CA, United StatesReported employees: 1-10 | Pomona, CA, United States | 1-10 | Exact match | 4 contacts → |
“KYLE Groundwater, Inc, was founded in response to demand for experienced and innovative hydrogeological solutions from our Southern California clients.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Aion Energy LLCaionenergyllc.com HQ: Orlando, FL, United StatesReported employees: 1-10 | Orlando, FL, United States | 1-10 | Exact match | 3 contacts → |
“Aion Energy LLC (Aion) provides strategic consulting services to the energy industry.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Lansdale, PA, United StatesReported employees: 51-200 | Lansdale, PA, United States | 51-200 | Exact match | 3 contacts → |
“Main Line Energy Consultants LLC, a Westwood team (MLEC), has fully transitioned to Westwood after being acquired in 2019.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 128 company matches
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Hydrogen consulting firms: dataset insights
September 3, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
128 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.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 3, 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 hydrogen consulting firms?
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 hydrogen consulting firms did RevenueBase find based in the United States?
The saved snapshot records 128 matching company records, 792 tracked contacts and 336 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: September 3, 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
Hydrogen consulting firms by geography
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Cite this list
RevenueBase Data Team. Top 25 hydrogen consulting firms based in the United States. Snapshot: September 3, 2026. https://revenuebase.ai/companies/hydrogen-consulting-firms/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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