Company lists · Data refreshed September 2026
Top 25 Energy companies based in London, United Kingdom
RevenueBase lists 138 energy companies based in London, United Kingdom, with 161,353 business contacts and 45,393 email addresses. The directory covers organizations involved in producing, generating, transmitting, distributing, trading, or supplying energy. Across the United Kingdom, London is the largest hub for this category.
Energy companies produce, generate, transmit, distribute, trade, or supply energy and related energy products and services. This list covers companies that produce, generate, transmit, distribute, trade, or supply energy, including electricity, fuels, and renewable energy products. 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 25 largest energy companies based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 115,863 contacts → | ||||
Strong evidence “Shell is a global group of energy and petrochemical companies, employing people across 70+ countries.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 2 | 24,403 contacts → | ||||
Strong evidence “We power the lives of millions of people across Britain, New York and Massachusetts, moving energy from where it’s made to the communities that need it, every single day.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 3 | 8,188 contacts → | ||||
Strong evidence “EDF is leading the charge towards An Electric Britain to help make energy more affordable and sustainable.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 4 | 3,989 contacts → | ||||
Strong evidence “We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,211 contacts → | ||||
Strong evidence “HUNTING is an energy services provider to the world's leading national and international oil and gas companies, manufacturing and distributing products that enable the extraction…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 6 | 870 contacts → | ||||
Strong evidence “EDF Trading is a leader in the international wholesale energy markets.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 7 | 595 contacts → | ||||
Strong evidence “Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 8 | 587 contacts → | ||||
Strong evidence “Established in 2007, Energean is a London-listed FTSE 250 and Tel Aviv-listed TA-90 E&P company with operations in the Europe, Middle East and Africa (“EMEA”) region.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 9 | 387 contacts → | ||||
Indirect evidence “Please note Gazprom Marketing & Trading is now SEFE Marketing & Trading.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 10 | 383 contacts → | ||||
Strong evidence “The Prax Group is a British multinational, independent global energy conglomerate dealing in crude oil, petroleum products and biofuels, headquartered in London, with a complete…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 11 | 378 contacts → | ||||
Strong evidence “We do energy, you do you.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 12 | 314 contacts → | ||||
Indirect evidence “Northern Petroleum is an oil and gas exploration and production company quoted on the AIM Market of the London Stock Exchange.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 13 | 275 contacts → | ||||
Strong evidence “Established in 2002, Inatech is a global pioneer in intelligent cloud-based energy trading risk management (ETRM) and fuel management solutions.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 14 | 256 contacts → | ||||
Indirect evidence “Petroineos comprises trading and refining joint ventures between PetroChina International (London) Company Limited and INEOS.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 15 | 214 contacts → | ||||
Indirect evidence “With a capacity of 3.5GW, we are one of the leading power companies in the UK and Ireland.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 16 | 183 contacts → | ||||
Strong evidence “As a trusted end-to-end partner in the energy space, Brook Green Supply delivers the insight and expertise our customers need to make informed decisions, transact energy with…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 17 | 160 contacts → | ||||
Indirect evidence “TTEP is a flexible power generation company jointly owned by EPH and TotalEnergies.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 18 | 146 contacts → | ||||
Strong evidence “At Brady Technologies, we are at the forefront of the energy transition, helping market participants navigate new challenges and opportunities with confidence.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 19 | 141 contacts → | ||||
Indirect evidence “Bulb provided 100% renewable electricity to homes in the UK, France, Spain and Texas and 100% carbon offset gas in the UK.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 20 | 62 contacts → | ||||
Indirect evidence “Quantum Commodity Intelligence delivers daily pricing, exclusive news and market data for oil, biofuels, carbon, ammonia and hydrogen.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 21 | 45 contacts → | ||||
Indirect evidence “In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 22 | 37 contacts → | ||||
Strong evidence “EnBW Energie-Baden-Württemberg AG - the name reflects our roots and our commitment.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 23 | 33 contacts → | ||||
Indirect evidence “CalEnergy Resources Limited is a wholly-owned subsidiary of Northern Powergrid an electrical distribution company based in Newcastle Upon Tyne that delivers safe and reliable…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 24 | 32 contacts → | ||||
Strong evidence “Kistos is a high-growth, agile integrated energy company focused on unlocking value across its portfolio and through disciplined, value-accretive M&A.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 25 | 26 contacts → | ||||
Strong evidence “Utilidex delivers a range of integrated energy software products supporting end customers, consultants and energy suppliers/generators for data management, billing, trading…” 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: energy 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 energy companies.
- Partial evidence
- Its own public description names part of energy companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy 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 25 of 138 energy companies based in London, United Kingdom
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Energy 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 14.0dCompany record updated
Median 77.0dHow 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 energy 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 “energy 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 energy 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 energy 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, 45,393 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
What are energy companies?
Energy companies produce, generate, transmit, distribute, trade, or supply energy and related products and services.
How many energy companies are based in London, United Kingdom?
The directory lists 138 energy companies based in London, United Kingdom, with 161,353 business contacts and 45,393 email addresses.
Which city in the United Kingdom has the most energy companies?
London leads the United Kingdom with 137 headquartered companies, followed by Aberdeen (9) and Manchester (9).
Ready to reach these companies? Verified emails and direct dials for all 138 energy companies based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Energy companies by geography
- Energy companies based in the United States
- Energy companies based in Italy
- Energy companies based in Germany
- Energy companies based in the United Kingdom
- Energy companies based in Spain
- Energy companies based in Brazil
- Energy companies based in France
- Energy companies based in Canada
- Energy companies based in the Netherlands
- Energy companies based in Poland
- Energy companies based in Switzerland
- Energy companies based in Australia
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 25 energy 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 138 matching company records for energy companies based in London, United Kingdom, with 161,353 tracked contacts and 45,393 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 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 25 energy 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 |  SHELLshell.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 115,863 contacts → |
“Shell is a global group of energy and petrochemical companies, employing people across 70+ countries.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  National Gridnationalgrid.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 24,403 contacts → |
“We power the lives of millions of people across Britain, New York and Massachusetts, moving energy from where it’s made to the communities that need it, every single day.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  EDF UKedfenergy.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 8,188 contacts → |
“EDF is leading the charge towards An Electric Britain to help make energy more affordable and sustainable.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Octopus Energyoctopus.energyHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,989 contacts → |
“We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Huntinghuntingplc.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,211 contacts → |
“HUNTING is an energy services provider to the world's leading national and international oil and gas companies, manufacturing and distributing products that enable the extraction…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  EDF Tradingedftrading.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 870 contacts → |
“EDF Trading is a leader in the international wholesale energy markets.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Kaluzakaluza.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 595 contacts → |
“Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Energeanenergean.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 587 contacts → |
“Established in 2007, Energean is a London-listed FTSE 250 and Tel Aviv-listed TA-90 E&P company with operations in the Europe, Middle East and Africa (“EMEA”) region.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Gazprom Marketing & Tradingsefe-mt.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 387 contacts → |
“Please note Gazprom Marketing & Trading is now SEFE Marketing & Trading.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  PRAXprax.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 383 contacts → |
“The Prax Group is a British multinational, independent global energy conglomerate dealing in crude oil, petroleum products and biofuels, headquartered in London, with a complete…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  SO Energyso.energyHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 378 contacts → |
“We do energy, you do you.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Northern Petroleum PLCnorthpet.comHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 314 contacts → |
“Northern Petroleum is an oil and gas exploration and production company quoted on the AIM Market of the London Stock Exchange.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Inatechinatech.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 275 contacts → |
“Established in 2002, Inatech is a global pioneer in intelligent cloud-based energy trading risk management (ETRM) and fuel management solutions.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Petroineos Trading Limitedpetroineos.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 256 contacts → |
“Petroineos comprises trading and refining joint ventures between PetroChina International (London) Company Limited and INEOS.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  VPIvpi.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 214 contacts → |
“With a capacity of 3.5GW, we are one of the leading power companies in the UK and Ireland.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Brook Green Supplybrookgreensupply.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 183 contacts → |
“As a trusted end-to-end partner in the energy space, Brook Green Supply delivers the insight and expertise our customers need to make informed decisions, transact energy with…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  TTEPepuki.co.ukHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 160 contacts → |
“TTEP is a flexible power generation company jointly owned by EPH and TotalEnergies.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Brady Technologiesbradytechnologies.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 146 contacts → |
“At Brady Technologies, we are at the forefront of the energy transition, helping market participants navigate new challenges and opportunities with confidence.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  BULBbulb.co.ukHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 141 contacts → |
“Bulb provided 100% renewable electricity to homes in the UK, France, Spain and Texas and 100% carbon offset gas in the UK.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Quantum Commodity Intelligenceqcintel.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 62 contacts → |
“Quantum Commodity Intelligence delivers daily pricing, exclusive news and market data for oil, biofuels, carbon, ammonia and hydrogen.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  GAS Strategiesgasstrategies.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 45 contacts → |
“In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Enbw Generation UKenbw.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 37 contacts → |
“EnBW Energie-Baden-Württemberg AG - the name reflects our roots and our commitment.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Calenergy Resources Limitedcalenergyresources.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 33 contacts → |
“CalEnergy Resources Limited is a wholly-owned subsidiary of Northern Powergrid an electrical distribution company based in Newcastle Upon Tyne that delivers safe and reliable…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Kistoskistosplc.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Kistos is a high-growth, agile integrated energy company focused on unlocking value across its portfolio and through disciplined, value-accretive M&A.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Utilidexutilidex.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Utilidex delivers a range of integrated energy software products supporting end customers, consultants and energy suppliers/generators for data management, billing, trading…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 138 company matches
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Energy 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
135 records in the displayed employee bands.
3 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 14.0dCompany record updated
Median 77.0dHow 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 energy 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 energy companies did RevenueBase find based in London, United Kingdom?
The saved snapshot records 138 matching company records, 161,353 tracked contacts and 45,393 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 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
Energy companies by geography
- Energy companies based in the United States
- Energy companies based in Italy
- Energy companies based in Germany
- Energy companies based in the United Kingdom
- Energy companies based in Spain
- Energy companies based in Brazil
- Energy companies based in France
- Energy companies based in Canada
- Energy companies based in the Netherlands
- Energy companies based in Poland
- Energy companies based in Switzerland
- Energy companies based in Australia
Cite this list
RevenueBase Data Team. Top 25 energy companies based in London, United Kingdom. Snapshot: September 12, 2026. https://revenuebase.ai/companies/energy-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 25 energy companies based in London, United Kingdom
RevenueBase records 138 matching company records for energy companies based in London, United Kingdom, with 161,353 tracked contacts and 45,393 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 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 25 energy 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 | SHELLshell.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 115,863 contacts → |
“Shell is a global group of energy and petrochemical companies, employing people across 70+ countries.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | National Gridnationalgrid.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 24,403 contacts → |
“We power the lives of millions of people across Britain, New York and Massachusetts, moving energy from where it’s made to the communities that need it, every single day.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | EDF UKedfenergy.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 8,188 contacts → |
“EDF is leading the charge towards An Electric Britain to help make energy more affordable and sustainable.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Octopus Energyoctopus.energy HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,989 contacts → |
“We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Huntinghuntingplc.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,211 contacts → |
“HUNTING is an energy services provider to the world's leading national and international oil and gas companies, manufacturing and distributing products that enable the extraction…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | EDF Tradingedftrading.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 870 contacts → |
“EDF Trading is a leader in the international wholesale energy markets.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Kaluzakaluza.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 595 contacts → |
“Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Energeanenergean.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 587 contacts → |
“Established in 2007, Energean is a London-listed FTSE 250 and Tel Aviv-listed TA-90 E&P company with operations in the Europe, Middle East and Africa (“EMEA”) region.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Gazprom Marketing & Tradingsefe-mt.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 387 contacts → |
“Please note Gazprom Marketing & Trading is now SEFE Marketing & Trading.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | PRAXprax.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 383 contacts → |
“The Prax Group is a British multinational, independent global energy conglomerate dealing in crude oil, petroleum products and biofuels, headquartered in London, with a complete…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | SO Energyso.energy HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 378 contacts → |
“We do energy, you do you.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Northern Petroleum PLCnorthpet.com HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 314 contacts → |
“Northern Petroleum is an oil and gas exploration and production company quoted on the AIM Market of the London Stock Exchange.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Inatechinatech.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 275 contacts → |
“Established in 2002, Inatech is a global pioneer in intelligent cloud-based energy trading risk management (ETRM) and fuel management solutions.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Petroineos Trading Limitedpetroineos.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 256 contacts → |
“Petroineos comprises trading and refining joint ventures between PetroChina International (London) Company Limited and INEOS.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | VPIvpi.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 214 contacts → |
“With a capacity of 3.5GW, we are one of the leading power companies in the UK and Ireland.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Brook Green Supplybrookgreensupply.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 183 contacts → |
“As a trusted end-to-end partner in the energy space, Brook Green Supply delivers the insight and expertise our customers need to make informed decisions, transact energy with…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | TTEPepuki.co.uk HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 160 contacts → |
“TTEP is a flexible power generation company jointly owned by EPH and TotalEnergies.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Brady Technologiesbradytechnologies.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 146 contacts → |
“At Brady Technologies, we are at the forefront of the energy transition, helping market participants navigate new challenges and opportunities with confidence.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | BULBbulb.co.uk HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 141 contacts → |
“Bulb provided 100% renewable electricity to homes in the UK, France, Spain and Texas and 100% carbon offset gas in the UK.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Quantum Commodity Intelligenceqcintel.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 62 contacts → |
“Quantum Commodity Intelligence delivers daily pricing, exclusive news and market data for oil, biofuels, carbon, ammonia and hydrogen.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | GAS Strategiesgasstrategies.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 45 contacts → |
“In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Enbw Generation UKenbw.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 37 contacts → |
“EnBW Energie-Baden-Württemberg AG - the name reflects our roots and our commitment.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Calenergy Resources Limitedcalenergyresources.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 33 contacts → |
“CalEnergy Resources Limited is a wholly-owned subsidiary of Northern Powergrid an electrical distribution company based in Newcastle Upon Tyne that delivers safe and reliable…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Kistoskistosplc.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Kistos is a high-growth, agile integrated energy company focused on unlocking value across its portfolio and through disciplined, value-accretive M&A.” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Utilidexutilidex.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Utilidex delivers a range of integrated energy software products supporting end customers, consultants and energy suppliers/generators for data management, billing, trading…” Recorded description excerpt · September 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 138 company matches
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Energy 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
135 records in the displayed employee bands.
3 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 14.0dCompany record updated
Median 77.0dHow 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 energy 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 energy companies did RevenueBase find based in London, United Kingdom?
The saved snapshot records 138 matching company records, 161,353 tracked contacts and 45,393 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 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
Energy companies by geography
- Energy companies based in the United States
- Energy companies based in Italy
- Energy companies based in Germany
- Energy companies based in the United Kingdom
- Energy companies based in Spain
- Energy companies based in Brazil
- Energy companies based in France
- Energy companies based in Canada
- Energy companies based in the Netherlands
- Energy companies based in Poland
- Energy companies based in Switzerland
- Energy companies based in Australia
Cite this list
RevenueBase Data Team. Top 25 energy companies based in London, United Kingdom. Snapshot: September 12, 2026. https://revenuebase.ai/companies/energy-companies/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗