Company lists · Data refreshed September 2026
Top 25 Green hydrogen investment firms worldwide
RevenueBase identified 1,263 green hydrogen investment firms worldwide as of September 2026 and tracks 44,884 professional contacts across them, including 16,331 with verified work emails. The United States is the largest market and London the largest hub.
This list covers green hydrogen investment firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for green hydrogen investment firms follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest green hydrogen investment firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 11,181 contacts → | ||||
Indirect evidence “RWE is leading the way to a modern energy world.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,340 contacts → | ||||
Indirect evidence “ReNew is a leading decarbonisation solutions provider and the first Indian clean energy company to list on Nasdaq (Nasdaq: RNW).” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,578 contacts → | ||||
Indirect evidence “Greenko, is one of the World’s leading Energy Transition and Decarbonization solutions company, with an installed Renewable Energy capacity of ~7.5 GW across Wind, Solar and Hydro…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,242 contacts → | ||||
Indirect evidence “ACME Group is one of the leading global sustainable and renewable energy companies and a beacon of innovation in the sustainable energy landscape for the past 2 decades.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,037 contacts → | ||||
Strong evidence “Plug is building an end-to-end green hydrogen ecosystem, from production, storage and delivery to energy generation, to help its customers meet their business goals and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,961 contacts → | ||||
Partial evidence “Envision Energy is a world-leading green technology company that provides renewable energy solutions for global enterprises, governments, and institutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,747 contacts → | ||||
Partial evidence “Avaada Group is a diversified clean energy conglomerate focused on the global energy transition, providing solutions in renewable power generation, solar PV manufacturing, green…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,298 contacts → | ||||
Indirect evidence “Somos una compañía comprometida con la energía y la movilidad sostenibles basadas en moléculas verdes.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,026 contacts → | ||||
Indirect evidence “Established in 2006, Masdar is a global clean energy leader, transforming how the world produces and consumes energy through bold innovation and commercial excellence.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 711 contacts → | ||||
Partial evidence “Founded in 2020, Stegra (formerly H2 Green Steel) was created with the purpose to decarbonize hard-to-abate industry.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 691 contacts → | ||||
Indirect evidence “thyssenkrupp nucera offers world-leading technologies for high-efficiency electrolysis plants.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 565 contacts → | ||||
Partial evidence “Q ENERGY is Europe’s 360° green energy company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 547 contacts → | ||||
Strong evidence “Ohmium's mission is to accelerate the adoption of green hydrogen to decarbonize hard-to-abate sectors and enable a low-carbon future.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 544 contacts → | ||||
Indirect evidence “Hero Future Energies (An ISO 27001:2022 Certified Company) is a leading global renewable energy company and part of the illustrious Hero Group, one of the most respected business…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 284 contacts → | ||||
Partial evidence “We are a company that can organically connect renewable energy, clean hydrogen, energy solutions, and the LNG business to create synergy.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 260 contacts → | ||||
Strong evidence “NEOM Green Hydrogen Company (NGHC) is on a mission to make a carbon-free, climate-safe future a reality.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 216 contacts → | ||||
Indirect evidence “TCI GECOMP es una empresa de Ingeniería y Construcción especializada en Energías renovables e Hidrógeno Verde con presencia en España, Perú, Chile y Argentina.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 210 contacts → | ||||
Indirect evidence “Lhyfe is a certain idea of the world, a world in which we can meet our energy needs by being part of the natural ecosystem rather than trying to dominate it.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 198 contacts → | ||||
Indirect evidence “Gentari, a clean energy solutions company founded by PETRONAS, is focused on delivering the solutions required to put clean energy into action today, to transform how we live…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 196 contacts → | ||||
Indirect evidence “HASI invests in sustainable infrastructure assets advancing the energy transition.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 173 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 166 contacts → | ||||
Indirect evidence “BIG - A Climate Tech Company - is a leader in industrial gas and greenhouse gas reduction technology.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 154 contacts → | ||||
Strong evidence “TES is a global green energy company focused on developing giga-scale projects to produce hydrogen-based e-fuels, such as e-NG (electric natural gas made from green hydrogen and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 147 contacts → | ||||
Indirect evidence “Matrix Renewables is a global renewable energy platform created and backed by global alternative asset manager TPG and its $31 billion impact-investing platform.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 144 contacts → | ||||
Indirect evidence “Today, and for decades, global warming is a reality.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: green hydrogen investment firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names green hydrogen investment firms.
- Partial evidence
- Its own public description names part of green hydrogen investment firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name green hydrogen investment firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,263 green hydrogen investment firms worldwide
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Green hydrogen investment firms worldwide at a glance
As of Sep 28, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among green hydrogen investment firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for green hydrogen investment firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “green hydrogen investment firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names green hydrogen investment firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among green hydrogen investment firms, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 16,331 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Green hydrogen investment firms by location
13 lists · largest firstEvery Green hydrogen investment firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Green hydrogen investment firms based in the United States179
- Green hydrogen investment firms based in the United Kingdom117
- Green hydrogen investment firms based in Germany78
- Green hydrogen investment firms based in India70
- Green hydrogen investment firms based in Spain65
- Green hydrogen investment firms based in France48
- Green hydrogen investment firms based in Australia45
- Green hydrogen investment firms based in Canada37
- Green hydrogen investment firms based in the Netherlands33
- Green hydrogen investment firms based in Norway28
- Green hydrogen investment firms based in Italy26
Cities
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names green hydrogen investment firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many green hydrogen investment firms are there worldwide?
RevenueBase identified 1,263 green hydrogen investment firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
RWE, headquartered in Essen, tops this list with the largest team on record.
Which country has the most green hydrogen investment firms?
The United States leads with 179 companies, followed by the United Kingdom (117) and Germany (78). Every green hydrogen investment firms list by country and city is linked on this page.
Which city has the most green hydrogen investment firms?
London leads with 55 headquartered companies, followed by Madrid (31) and Houston (19).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 16,331 verified decision-maker contacts tracked across these 1,263 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.