Company lists · Data refreshed September 2026
Top 24 Hydrogen companies based in London, United Kingdom
Find 57 hydrogen companies based in London, United Kingdom, with 258 business contacts and 85 email addresses. Hydrogen companies on this list work across hydrogen production, processing, distribution, storage, equipment, and related services. Across the United Kingdom, London is the largest hub for this category.
Hydrogen companies produce, process, distribute, store, or use hydrogen and may provide related equipment, infrastructure, or services. This list covers companies whose products, facilities, or services directly support hydrogen production, processing, distribution, storage, mobility, power generation, or related industrial use. Ranked by team size, largest first. Data current as of September 12, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 24 largest hydrogen companies based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 36 contacts → | ||||
Indirect evidence “SONATRACH PETROLEUM CORPORATION is an oil & energy company based out of United Kingdom.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 2 | 21 contacts → | ||||
Strong evidence “Accelerating the hydrogen transition through actionable insights and networking.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 3 | 14 contacts → | ||||
Strong evidence “Oort Energy is a manufacturer of green hydrogen systems for energy storage and clean fuel.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 4 | 12 contacts → | ||||
Strong evidence “We provide unrivalled access, insight, and a human capital competitive advantage to industry leaders and pioneers across global Gas, LNG and Hydrogen industries advancing the…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 5 | 12 contacts → | ||||
Strong evidence “We're a hydrogen-specialist political strategy and communications agency.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 6 | 11 contacts → | ||||
Indirect evidence “Deltic Energy Plc is an AIM-listed North Sea E&P company focused on derisking and investing in high impact and low carbon exploration opportunities, which are close to existing…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 7 | 10 contacts → | ||||
Strong evidence “The HEA uses the collective voices of our membership to advocate strongly for a positive social, political and economic environment for the development of hydrogen and its…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 8 | 10 contacts → | ||||
Strong evidence “Hydrogen UK, formerly the Hydrogen Taskforce, is focused on delivering tangible policy developments for hydrogen production, development, and use in the UK.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Strong evidence “First Hydrogen is fast becoming the leading designer and manufacturer of zero-emission, long-range hydrogen-powered utility vehicles.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 contacts → | ||||
Strong evidence “Humble Hydrogen is a leading hydrogen solution provider and manufacturer.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Strong evidence “The energy industry's leading source for hydrogen news and analysis.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Strong evidence “Vedra’s Process makes Carbon Neutral Hydrogen at scale from in-situ oil while sequestering CO2.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Strong evidence “Meld Energy is a large scale UK green hydrogen developer with ambitions to produce 10%+ of country's electrolytic hydrogen powered by renewable energy.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Indirect evidence “AIM-quoted Prospex Energy plc is building a sizeable gas production and electricity generation investment portfolio focused on high impact, late stage onshore European…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Strong evidence “LNG TV is the globe’s first media channel dedicated to Gas, LNG and Hydrogen - providing unparalleled access and insight through a portfolio of programs, including dynamic…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Strong evidence “Tvisi Motors Limited is building the world’s first Software-Defined Hydrogen Commercial Vehicles (SDHVs), redefining how hydrogen fuel cell electric vehicles are engineered…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Strong evidence “Founded in 2020, HydroGenesis are a UK-based company building the leading position in natural hydrogen acreage and progressing exploration throughout the African continent.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Strong evidence “The Hydrogen Standard is a go-to portal for all news updates related to the hydrogen value chain and how it fits in the wider energy transition.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Strong evidence “At Exogen, we provide techno-economic insights and strategic consulting services for the global hydrogen economy, guiding businesses toward cost-effective decarbonization.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Strong evidence “Convert Well is on a mission to enable natural gas fields to be converted at source to produce more and lower-cost hydrogen for industrial use.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Strong evidence “HyViz Ltd is a leading low-cost Green Hydrogen and Green Ammonia producer.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Strong evidence “At Dolphyn Hydrogen, we share a common belief that hydrogen is a critical component of our low carbon energy future and supporting enhancement of energy security whilst supporting…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Strong evidence “Georgina Energy (#GEP) is a helium & hydrogen development & production company, based in Australia.” Source: RevenueBase Database · checked Sep 12, 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: hydrogen companies. 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 hydrogen companies.
- Partial evidence
- Its own public description names part of hydrogen companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hydrogen companies. 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 24 of 57 hydrogen companies based in London, United Kingdom
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Hydrogen companies based in London, United Kingdom at a glance
As of Sep 12, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 15.0dCompany record updated
Median 59.0dHow 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 hydrogen companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in London, United Kingdom whose own description of what they do matches “hydrogen companies”. 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 hydrogen companies), 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 hydrogen companies, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 85 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 12, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many hydrogen companies are based in London, United Kingdom?
57 hydrogen companies are listed based in London, United Kingdom.
How many contacts and email addresses are available for hydrogen companies?
The list includes 258 business contacts and 85 email addresses for hydrogen companies.
Which city in the United Kingdom has the most hydrogen companies?
London leads the United Kingdom with 57 headquartered companies, followed by Bristol (6) and Cardiff (6).
Ready to reach these companies? Verified emails and direct dials for all 57 hydrogen companies based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Hydrogen companies by geography
- Hydrogen companies based in the United States
- Hydrogen companies based in Germany
- Hydrogen companies based in the United Kingdom
- Hydrogen companies based in France
- Hydrogen companies based in Australia
- Hydrogen companies based in Canada
- Hydrogen companies based in Spain
- Hydrogen companies based in the Netherlands
- Hydrogen companies based in Italy
- Hydrogen companies based in Norway
- Hydrogen companies based in Brazil
- Hydrogen companies based in Switzerland
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.
More company lists
Company intelligence · public preview
Top 24 hydrogen companies based in London, United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 57 matching company records for hydrogen companies based in London, United Kingdom, with 258 tracked contacts and 85 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 12, 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 24 hydrogen companies based in London, United Kingdom
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 |  Sonatrach Petroleum Corporationsonatrach.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 36 contacts → |
“SONATRACH PETROLEUM CORPORATION is an oil & energy company based out of United Kingdom.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  World Hydrogen Leadersworldhydrogenleaders.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Accelerating the hydrogen transition through actionable insights and networking.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Oort Energyoortenergy.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Oort Energy is a manufacturer of green hydrogen systems for energy storage and clean fuel.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Alchemy Energy Partnersaep.globalHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“We provide unrivalled access, insight, and a human capital competitive advantage to industry leaders and pioneers across global Gas, LNG and Hydrogen industries advancing the…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Beyond2050beyond2050.co.ukHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 12 contacts → |
“We're a hydrogen-specialist political strategy and communications agency.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Deltic Energydelticenergy.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 11 contacts → |
“Deltic Energy Plc is an AIM-listed North Sea E&P company focused on derisking and investing in high impact and low carbon exploration opportunities, which are close to existing…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Hydrogen Energy Associationukhea.co.ukHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 10 contacts → |
“The HEA uses the collective voices of our membership to advocate strongly for a positive social, political and economic environment for the development of hydrogen and its…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Hydrogen UKhydrogen-uk.orgHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Hydrogen UK, formerly the Hydrogen Taskforce, is focused on delivering tangible policy developments for hydrogen production, development, and use in the UK.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  First Hydrogenfirsthydrogen.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 7 contacts → |
“First Hydrogen is fast becoming the leading designer and manufacturer of zero-emission, long-range hydrogen-powered utility vehicles.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Humble Hydrogen LTDhumblehydrogen.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 6 contacts → |
“Humble Hydrogen is a leading hydrogen solution provider and manufacturer.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Hydrogen Insighthydrogeninsight.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“The energy industry's leading source for hydrogen news and analysis.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Vedra Hydrogenvedra-hydrogen.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Vedra’s Process makes Carbon Neutral Hydrogen at scale from in-situ oil while sequestering CO2.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Meld Energymeld.energyHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Meld Energy is a large scale UK green hydrogen developer with ambitions to produce 10%+ of country's electrolytic hydrogen powered by renewable energy.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Prospex Energy PLCprospex.energyHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“AIM-quoted Prospex Energy plc is building a sizeable gas production and electricity generation investment portfolio focused on high impact, late stage onshore European…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  LNG TVlngtv.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“LNG TV is the globe’s first media channel dedicated to Gas, LNG and Hydrogen - providing unparalleled access and insight through a portfolio of programs, including dynamic…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Tvisi Motorstvisimotors.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Tvisi Motors Limited is building the world’s first Software-Defined Hydrogen Commercial Vehicles (SDHVs), redefining how hydrogen fuel cell electric vehicles are engineered…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Hydrogenesishydrogenesis.co.ukHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Founded in 2020, HydroGenesis are a UK-based company building the leading position in natural hydrogen acreage and progressing exploration throughout the African continent.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Hydrogen Standardthehydrogenstandard.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“The Hydrogen Standard is a go-to portal for all news updates related to the hydrogen value chain and how it fits in the wider energy transition.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Hydrogen Challenge LTDhydrogenchallenge.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  Exogen Hydrogen Solutionsexogen.energyHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“At Exogen, we provide techno-economic insights and strategic consulting services for the global hydrogen economy, guiding businesses toward cost-effective decarbonization.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Convert Well LTDconvert-well.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Convert Well is on a mission to enable natural gas fields to be converted at source to produce more and lower-cost hydrogen for industrial use.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HYVIZhyviz.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 1 contacts → |
“HyViz Ltd is a leading low-cost Green Hydrogen and Green Ammonia producer.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Dolphyn Hydrogendolphynhydrogen.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“At Dolphyn Hydrogen, we share a common belief that hydrogen is a critical component of our low carbon energy future and supporting enhancement of energy security whilst supporting…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Georgina Energygeorginaenergy.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Georgina Energy (#GEP) is a helium & hydrogen development & production company, based in Australia.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 57 company matches
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Hydrogen companies: dataset insights
September 12, 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
57 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 were verified and the company information checked
Email last verified
Median 15.0dCompany record updated
Median 59.0dHow 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 12, 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 companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many hydrogen companies did RevenueBase find based in London, United Kingdom?
The saved snapshot records 57 matching company records, 258 tracked contacts and 85 verified emails. The public preview displays 24 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 12, 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 companies by geography
- Hydrogen companies based in the United States
- Hydrogen companies based in Germany
- Hydrogen companies based in the United Kingdom
- Hydrogen companies based in France
- Hydrogen companies based in Australia
- Hydrogen companies based in Canada
- Hydrogen companies based in Spain
- Hydrogen companies based in the Netherlands
- Hydrogen companies based in Italy
- Hydrogen companies based in Norway
- Hydrogen companies based in Brazil
- Hydrogen companies based in Switzerland
Cite this list
RevenueBase Data Team. Top 24 hydrogen companies based in London, United Kingdom. Snapshot: September 12, 2026. https://revenuebase.ai/companies/hydrogen-companies/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 24 hydrogen companies based in London, United Kingdom
RevenueBase records 57 matching company records for hydrogen companies based in London, United Kingdom, with 258 tracked contacts and 85 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 12, 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 24 hydrogen companies based in London, United Kingdom
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 | Sonatrach Petroleum Corporationsonatrach.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 36 contacts → |
“SONATRACH PETROLEUM CORPORATION is an oil & energy company based out of United Kingdom.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | World Hydrogen Leadersworldhydrogenleaders.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Accelerating the hydrogen transition through actionable insights and networking.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Oort Energyoortenergy.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Oort Energy is a manufacturer of green hydrogen systems for energy storage and clean fuel.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Alchemy Energy Partnersaep.global HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“We provide unrivalled access, insight, and a human capital competitive advantage to industry leaders and pioneers across global Gas, LNG and Hydrogen industries advancing the…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Beyond2050beyond2050.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 12 contacts → |
“We're a hydrogen-specialist political strategy and communications agency.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Deltic Energydelticenergy.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 11 contacts → |
“Deltic Energy Plc is an AIM-listed North Sea E&P company focused on derisking and investing in high impact and low carbon exploration opportunities, which are close to existing…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Hydrogen Energy Associationukhea.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 10 contacts → |
“The HEA uses the collective voices of our membership to advocate strongly for a positive social, political and economic environment for the development of hydrogen and its…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Hydrogen UKhydrogen-uk.org HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Hydrogen UK, formerly the Hydrogen Taskforce, is focused on delivering tangible policy developments for hydrogen production, development, and use in the UK.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | First Hydrogenfirsthydrogen.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 7 contacts → |
“First Hydrogen is fast becoming the leading designer and manufacturer of zero-emission, long-range hydrogen-powered utility vehicles.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Humble Hydrogen LTDhumblehydrogen.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 6 contacts → |
“Humble Hydrogen is a leading hydrogen solution provider and manufacturer.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Hydrogen Insighthydrogeninsight.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“The energy industry's leading source for hydrogen news and analysis.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Vedra Hydrogenvedra-hydrogen.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Vedra’s Process makes Carbon Neutral Hydrogen at scale from in-situ oil while sequestering CO2.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Meld Energymeld.energy HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Meld Energy is a large scale UK green hydrogen developer with ambitions to produce 10%+ of country's electrolytic hydrogen powered by renewable energy.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Prospex Energy PLCprospex.energy HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“AIM-quoted Prospex Energy plc is building a sizeable gas production and electricity generation investment portfolio focused on high impact, late stage onshore European…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | LNG TVlngtv.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“LNG TV is the globe’s first media channel dedicated to Gas, LNG and Hydrogen - providing unparalleled access and insight through a portfolio of programs, including dynamic…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Tvisi Motorstvisimotors.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Tvisi Motors Limited is building the world’s first Software-Defined Hydrogen Commercial Vehicles (SDHVs), redefining how hydrogen fuel cell electric vehicles are engineered…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Hydrogenesishydrogenesis.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Founded in 2020, HydroGenesis are a UK-based company building the leading position in natural hydrogen acreage and progressing exploration throughout the African continent.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hydrogen Standardthehydrogenstandard.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“The Hydrogen Standard is a go-to portal for all news updates related to the hydrogen value chain and how it fits in the wider energy transition.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Hydrogen Challenge LTDhydrogenchallenge.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Exogen Hydrogen Solutionsexogen.energy HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“At Exogen, we provide techno-economic insights and strategic consulting services for the global hydrogen economy, guiding businesses toward cost-effective decarbonization.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Convert Well LTDconvert-well.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Convert Well is on a mission to enable natural gas fields to be converted at source to produce more and lower-cost hydrogen for industrial use.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HYVIZhyviz.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 1 contacts → |
“HyViz Ltd is a leading low-cost Green Hydrogen and Green Ammonia producer.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Dolphyn Hydrogendolphynhydrogen.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“At Dolphyn Hydrogen, we share a common belief that hydrogen is a critical component of our low carbon energy future and supporting enhancement of energy security whilst supporting…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Georgina Energygeorginaenergy.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Georgina Energy (#GEP) is a helium & hydrogen development & production company, based in Australia.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 57 company matches
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Hydrogen companies: dataset insights
September 12, 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
57 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 were verified and the company information checked
Email last verified
Median 15.0dCompany record updated
Median 59.0dHow 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 12, 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 companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many hydrogen companies did RevenueBase find based in London, United Kingdom?
The saved snapshot records 57 matching company records, 258 tracked contacts and 85 verified emails. The public preview displays 24 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 12, 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 companies by geography
- Hydrogen companies based in the United States
- Hydrogen companies based in Germany
- Hydrogen companies based in the United Kingdom
- Hydrogen companies based in France
- Hydrogen companies based in Australia
- Hydrogen companies based in Canada
- Hydrogen companies based in Spain
- Hydrogen companies based in the Netherlands
- Hydrogen companies based in Italy
- Hydrogen companies based in Norway
- Hydrogen companies based in Brazil
- Hydrogen companies based in Switzerland
Cite this list
RevenueBase Data Team. Top 24 hydrogen companies based in London, United Kingdom. Snapshot: September 12, 2026. https://revenuebase.ai/companies/hydrogen-companies/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗