Company lists · Data refreshed September 2026
Top 25 Green hydrogen investment firms based in the United States
RevenueBase identified 179 company matches for green hydrogen investment firms associated with the United States as of September 2026 and tracks 3,868 professional contacts across them, including 1,799 with verified work emails. New York is the largest hub.
This list covers company matches for green hydrogen investment 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 28, 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 investment firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,037 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 · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 196 contacts → | ||||
Exact match “HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 173 contacts → | ||||
Exact match “Founded in 1998, Quantum Capital Group is a leading provider of private equity, credit, and venture capital to the global energy and energy transition industry, having managed…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 52 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 · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 52 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 46 contacts → | ||||
Exact match “Founded in 2004, Denham Capital is a global Energy Transition investment firm, having raised more than $12 billion of capital across multiple sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 37 contacts → | ||||
Exact match “GEC invests in innovative energy technology and software companies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 36 contacts → | ||||
Exact match “Energy to Move the World.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 9 | 36 contacts → | ||||
Exact match “We are a private investment firm dedicated exclusively to building businesses that help transform the world’s energy infrastructure.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 35 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 · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 34 contacts → | ||||
Exact match “Energize Capital invests in climate solutions with ambition.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 32 contacts → | ||||
Exact match “The Westly Group is one of the largest venture funds in North America focused on the digitization and sustainability of the energy, mobility, building, and industrial sectors…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 31 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 · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 25 contacts → | ||||
Exact match “Founded in 1993, Fortistar is a privately owned investment firm focused on accelerating the transition to a lower carbon future.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 25 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 28, 2026 · View company records in RevenueBase | |||||
| 16 | 25 contacts → | ||||
Exact match “MCJ is an early-stage fund for the energy and industry transition and the inevitable impacts of climate change.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 23 contacts → | ||||
Exact match “Founded in 2017, Javelin Capital is a boutique investment banking firm for companies in the renewable energy, energy storage and green chemistry sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 22 contacts → | ||||
Exact match “Skyview Ventures is a management company that was founded in December 2008 to pursue investment opportunities in renewable energy and energy efficiency.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 19 contacts → | ||||
Exact match “Captona is a leading North America-focused energy transition investment firm driving the next era of growth in the clean energy future.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 20 | 19 contacts → | ||||
Exact match “Hudson Sustainable Group is an investment firm with a 20-year commitment to advancing clean energy and sustainable infrastructure.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 17 contacts → | ||||
Exact match “AMPYR Energy USA is working toward a sustainable and net zero emissions future by investing in, developing, managing and operating sustainable real assets that generate positive…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 15 contacts → | ||||
Exact match “8090 is a global investment firm at the frontier of industrial innovation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 23 | 15 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 · Sep 28, 2026 · View company records in RevenueBase | |||||
| 24 | 13 contacts → | ||||
Exact match “Volta is a new model for investing in energy technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 25 | 13 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 · Sep 28, 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 investment 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 179 green hydrogen investment firms based in the United States
See the full list, filter by size, metro and specialty, and access 1,799 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Green hydrogen investment firms based in the United States at a glance
As of Sep 28, 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 179 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 investment 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 1,799 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 28, 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 investment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many green hydrogen investment firms are there based in the United States?
RevenueBase identified 179 company matches for green hydrogen investment 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?
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 investment firms?
New York leads with 20 company records, followed by Houston (19) 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 1,799 professional contacts with verified work emails tracked across these 179 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 179 green hydrogen investment firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Green hydrogen investment firms by geography
- Green hydrogen investment firms based in Madrid, Spain
- Green hydrogen investment firms based in London, United Kingdom
- Green hydrogen investment firms based in Australia
- Green hydrogen investment firms based in Canada
- Green hydrogen investment firms based in France
- Green hydrogen investment firms based in Germany
- Green hydrogen investment firms based in India
- Green hydrogen investment firms based in Italy
- Green hydrogen investment firms based in the Netherlands
- Green hydrogen investment firms based in Norway
- Green hydrogen investment firms based in Spain
- Green hydrogen investment firms 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 investment firms based in Madrid, Spain
- Green hydrogen investment firms based in London, United Kingdom
- Green hydrogen investment firms based in Australia
- Green hydrogen investment firms based in Canada
- Green hydrogen investment firms based in France
- Green hydrogen investment firms based in Germany
Company intelligence · public preview
Top 25 green hydrogen investment 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 179 matching company records for green hydrogen investment firms based in the United States, with 3,868 tracked contacts and 1,799 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 28, 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 investment 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 |  Plug Powerplugpower.comHQ: Latham, NY, United StatesReported employees: 1,001-5,000 | Latham, NY, United States | 1,001-5,000 | Exact match | 2,037 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 · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  HASIhasi.comHQ: Annapolis, MD, United StatesReported employees: 51-200 | Annapolis, MD, United States | 51-200 | Exact match | 196 contacts → |
“HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Quantum Capital Groupquantumcap.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 173 contacts → |
“Founded in 1998, Quantum Capital Group is a leading provider of private equity, credit, and venture capital to the global energy and energy transition industry, having managed…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Bayotech Hydrogenbayotech.usHQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 52 contacts → |
“BayoTech is committed to addressing the global need for reliable, cost-effective and low-carbon hydrogen.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Tokyo GAS America LTDtgamerica.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 52 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 | Denham Capital Managementdenhamcapital.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 46 contacts → |
“Founded in 2004, Denham Capital is a global Energy Transition investment firm, having raised more than $12 billion of capital across multiple sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  GECgeclp.comHQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 37 contacts → |
“GEC invests in innovative energy technology and software companies.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Greenlake Energygreenlakeenergy.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 36 contacts → |
“Energy to Move the World.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Sandbrook Capitalsandbrook.comHQ: Stamford, CT, United StatesReported employees: 11-50 | Stamford, CT, United States | 11-50 | Exact match | 36 contacts → |
“We are a private investment firm dedicated exclusively to building businesses that help transform the world’s energy infrastructure.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ecolectroecolectro.comHQ: Ithaca, NY, United StatesReported employees: 11-50 | Ithaca, NY, United States | 11-50 | Exact match | 35 contacts → |
“Ecolectro is revolutionizing green hydrogen production with our groundbreaking Anion Exchange Membrane (AEM) technology, enabling affordable and sustainable hydrogen generation…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Energize Capitalenergizecap.comHQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 34 contacts → |
“Energize Capital invests in climate solutions with ambition.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  The Westly Groupwestlygroup.comHQ: Menlo Park, CA, United StatesReported employees: 11-50 | Menlo Park, CA, United States | 11-50 | Exact match | 32 contacts → |
“The Westly Group is one of the largest venture funds in North America focused on the digitization and sustainability of the energy, mobility, building, and industrial sectors…” Recorded description excerpt · September 28, 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 | 31 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 · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Fortistarfortistar.comHQ: White Plains, NY, United StatesReported employees: 201-500 | White Plains, NY, United States | 201-500 | Exact match | 25 contacts → |
“Founded in 1993, Fortistar is a privately owned investment firm focused on accelerating the transition to a lower carbon future.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Hyperion Companies, INChyperion.incHQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 25 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  MCJmcj.vcHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 25 contacts → |
“MCJ is an early-stage fund for the energy and industry transition and the inevitable impacts of climate change.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Javelin Capitalco.jllHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 23 contacts → |
“Founded in 2017, Javelin Capital is a boutique investment banking firm for companies in the renewable energy, energy storage and green chemistry sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Skyview Venturesskyviewventures.com HQ: Nashville, TN, United StatesReported employees: 11-50 | Nashville, TN, United States | 11-50 | Exact match | 22 contacts → |
“Skyview Ventures is a management company that was founded in December 2008 to pursue investment opportunities in renewable energy and energy efficiency.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Captonacaptona.com HQ: NY, United StatesReported employees: 11-50 | NY, United States | 11-50 | Exact match | 19 contacts → |
“Captona is a leading North America-focused energy transition investment firm driving the next era of growth in the clean energy future.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Hudson Sustainable Grouphudsonsustainable.comHQ: Miami, FL, United StatesReported employees: 11-50 | Miami, FL, United States | 11-50 | Exact match | 19 contacts → |
“Hudson Sustainable Group is an investment firm with a 20-year commitment to advancing clean energy and sustainable infrastructure.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ampyr Energy USAampyrenergyusa.com HQ: Long Beach, CA, United StatesReported employees: 11-50 | Long Beach, CA, United States | 11-50 | Exact match | 17 contacts → |
“AMPYR Energy USA is working toward a sustainable and net zero emissions future by investing in, developing, managing and operating sustainable real assets that generate positive…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  8090 Industries8090industries.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 15 contacts → |
“8090 is a global investment firm at the frontier of industrial innovation.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Q Hydrogen Companiesqhydrogen.com HQ: Park City, UT, United StatesReported employees: 11-50 | Park City, UT, United States | 11-50 | Exact match | 15 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 · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Volta Energy Technologiesvolta.vc HQ: Warrenville, IL, United StatesReported employees: 11-50 | Warrenville, IL, United States | 11-50 | Exact match | 13 contacts → |
“Volta is a new model for investing in energy technology.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Element Resources INCelementresources.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 13 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 · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 179 company matches
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Green hydrogen investment firms: dataset insights
September 28, 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
179 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 179 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: September 28, 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 investment 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 green hydrogen investment firms did RevenueBase find based in the United States?
The saved snapshot records 179 matching company records, 3,868 tracked contacts and 1,799 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 28, 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 investment firms by geography
- Green hydrogen investment firms based in Madrid, Spain
- Green hydrogen investment firms based in London, United Kingdom
- Green hydrogen investment firms based in Australia
- Green hydrogen investment firms based in Canada
- Green hydrogen investment firms based in France
- Green hydrogen investment firms based in Germany
- Green hydrogen investment firms based in India
- Green hydrogen investment firms based in Italy
- Green hydrogen investment firms based in the Netherlands
- Green hydrogen investment firms based in Norway
- Green hydrogen investment firms based in Spain
- Green hydrogen investment firms based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 green hydrogen investment firms based in the United States. Snapshot: September 28, 2026. https://revenuebase.ai/companies/green-hydrogen-investment-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
- Green hydrogen investment firms based in Madrid, Spain
- Green hydrogen investment firms based in London, United Kingdom
- Green hydrogen investment firms based in Australia
- Green hydrogen investment firms based in Canada
- Green hydrogen investment firms based in France
- Green hydrogen investment firms based in Germany
Company intelligence · public preview
Top 25 green hydrogen investment firms based in the United States
RevenueBase records 179 matching company records for green hydrogen investment firms based in the United States, with 3,868 tracked contacts and 1,799 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 28, 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 investment 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 | Plug Powerplugpower.com HQ: Latham, NY, United StatesReported employees: 1,001-5,000 | Latham, NY, United States | 1,001-5,000 | Exact match | 2,037 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 · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HASIhasi.com HQ: Annapolis, MD, United StatesReported employees: 51-200 | Annapolis, MD, United States | 51-200 | Exact match | 196 contacts → |
“HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Quantum Capital Groupquantumcap.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 173 contacts → |
“Founded in 1998, Quantum Capital Group is a leading provider of private equity, credit, and venture capital to the global energy and energy transition industry, having managed…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Bayotech Hydrogenbayotech.us HQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 52 contacts → |
“BayoTech is committed to addressing the global need for reliable, cost-effective and low-carbon hydrogen.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Tokyo GAS America LTDtgamerica.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 52 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 | Denham Capital Managementdenhamcapital.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 46 contacts → |
“Founded in 2004, Denham Capital is a global Energy Transition investment firm, having raised more than $12 billion of capital across multiple sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | GECgeclp.com HQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 37 contacts → |
“GEC invests in innovative energy technology and software companies.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Greenlake Energygreenlakeenergy.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 36 contacts → |
“Energy to Move the World.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sandbrook Capitalsandbrook.com HQ: Stamford, CT, United StatesReported employees: 11-50 | Stamford, CT, United States | 11-50 | Exact match | 36 contacts → |
“We are a private investment firm dedicated exclusively to building businesses that help transform the world’s energy infrastructure.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ecolectroecolectro.com HQ: Ithaca, NY, United StatesReported employees: 11-50 | Ithaca, NY, United States | 11-50 | Exact match | 35 contacts → |
“Ecolectro is revolutionizing green hydrogen production with our groundbreaking Anion Exchange Membrane (AEM) technology, enabling affordable and sustainable hydrogen generation…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Energize Capitalenergizecap.com HQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 34 contacts → |
“Energize Capital invests in climate solutions with ambition.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | The Westly Groupwestlygroup.com HQ: Menlo Park, CA, United StatesReported employees: 11-50 | Menlo Park, CA, United States | 11-50 | Exact match | 32 contacts → |
“The Westly Group is one of the largest venture funds in North America focused on the digitization and sustainability of the energy, mobility, building, and industrial sectors…” Recorded description excerpt · September 28, 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 | 31 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 · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Fortistarfortistar.com HQ: White Plains, NY, United StatesReported employees: 201-500 | White Plains, NY, United States | 201-500 | Exact match | 25 contacts → |
“Founded in 1993, Fortistar is a privately owned investment firm focused on accelerating the transition to a lower carbon future.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Hyperion Companies, INChyperion.inc HQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 25 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | MCJmcj.vc HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 25 contacts → |
“MCJ is an early-stage fund for the energy and industry transition and the inevitable impacts of climate change.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Javelin Capitalco.jll HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 23 contacts → |
“Founded in 2017, Javelin Capital is a boutique investment banking firm for companies in the renewable energy, energy storage and green chemistry sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Skyview Venturesskyviewventures.com HQ: Nashville, TN, United StatesReported employees: 11-50 | Nashville, TN, United States | 11-50 | Exact match | 22 contacts → |
“Skyview Ventures is a management company that was founded in December 2008 to pursue investment opportunities in renewable energy and energy efficiency.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Captonacaptona.com HQ: NY, United StatesReported employees: 11-50 | NY, United States | 11-50 | Exact match | 19 contacts → |
“Captona is a leading North America-focused energy transition investment firm driving the next era of growth in the clean energy future.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Hudson Sustainable Grouphudsonsustainable.com HQ: Miami, FL, United StatesReported employees: 11-50 | Miami, FL, United States | 11-50 | Exact match | 19 contacts → |
“Hudson Sustainable Group is an investment firm with a 20-year commitment to advancing clean energy and sustainable infrastructure.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ampyr Energy USAampyrenergyusa.com HQ: Long Beach, CA, United StatesReported employees: 11-50 | Long Beach, CA, United States | 11-50 | Exact match | 17 contacts → |
“AMPYR Energy USA is working toward a sustainable and net zero emissions future by investing in, developing, managing and operating sustainable real assets that generate positive…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 8090 Industries8090industries.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 15 contacts → |
“8090 is a global investment firm at the frontier of industrial innovation.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Q Hydrogen Companiesqhydrogen.com HQ: Park City, UT, United StatesReported employees: 11-50 | Park City, UT, United States | 11-50 | Exact match | 15 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 · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Volta Energy Technologiesvolta.vc HQ: Warrenville, IL, United StatesReported employees: 11-50 | Warrenville, IL, United States | 11-50 | Exact match | 13 contacts → |
“Volta is a new model for investing in energy technology.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Element Resources INCelementresources.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 13 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 · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 179 company matches
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Green hydrogen investment firms: dataset insights
September 28, 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
179 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 179 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: September 28, 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 investment 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 green hydrogen investment firms did RevenueBase find based in the United States?
The saved snapshot records 179 matching company records, 3,868 tracked contacts and 1,799 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 28, 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 investment firms by geography
- Green hydrogen investment firms based in Madrid, Spain
- Green hydrogen investment firms based in London, United Kingdom
- Green hydrogen investment firms based in Australia
- Green hydrogen investment firms based in Canada
- Green hydrogen investment firms based in France
- Green hydrogen investment firms based in Germany
- Green hydrogen investment firms based in India
- Green hydrogen investment firms based in Italy
- Green hydrogen investment firms based in the Netherlands
- Green hydrogen investment firms based in Norway
- Green hydrogen investment firms based in Spain
- Green hydrogen investment firms based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 green hydrogen investment firms based in the United States. Snapshot: September 28, 2026. https://revenuebase.ai/companies/green-hydrogen-investment-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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- Green hydrogen investment firms based in Madrid, Spain
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- Green hydrogen investment firms based in Australia
- Green hydrogen investment firms based in Canada
- Green hydrogen investment firms based in France
- Green hydrogen investment firms based in Germany