Company lists · Data refreshed September 2026
Top 25 Power generation companies britain worldwide
RevenueBase identified 899 power generation companies britain worldwide as of September 2026 and tracks 335,933 professional contacts across them, including 97,230 with verified work emails. Germany is the largest market and London the largest hub.
This list covers power generation companies britain worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for power generation companies britain follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest power generation companies britain worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 19,588 contacts → | ||||
Strong evidence “NTPC Limited is India’s largest power generation utility with roots planted way back in 1975 to accelerate power development in India.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 15,726 contacts → | ||||
Indirect evidence “We are a multinational company reshaping the future of energy and one of the world’s leading integrated electricity operators.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 15,504 contacts → | ||||
Indirect evidence “What if your next career adventure started with ENGIE?” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 14,673 contacts → | ||||
Indirect evidence “Hydro-Québec produit, transporte et distribue de l'électricité.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 11,015 contacts → | ||||
Partial evidence “At Entergy (NYSE: ETR), we power life.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 9,458 contacts → | ||||
Indirect evidence “Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the nation’s largest producer of reliable, emissions-free energy and a leading…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 9,414 contacts → | ||||
Partial evidence “Tata Power is one of India’s largest integrated power companies and together with its subsidiaries and jointly controlled entities, has an installed/managed capacity of 14,294 MW.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 8,955 contacts → | ||||
Strong evidence “At Ontario Power Generation (OPG), our power is changing the world as we strive to electrify life in one generation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 8,188 contacts → | ||||
Partial evidence “EDF is leading the charge towards An Electric Britain to help make energy more affordable and sustainable.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7,598 contacts → | ||||
Partial evidence “With more than 180 years of history, Iberdrola is today a global energy leader, the leading wind power producer and one of the largest electricity companies in the world in terms…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 7,483 contacts → | ||||
Indirect evidence “O futuro já chegou.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6,221 contacts → | ||||
Indirect evidence “NextEra Energy Resources, LLC, together with its affiliated entities,("NextEra Energy Resources") is one of the largest energy infrastructure companies in North America.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5,486 contacts → | ||||
Strong evidence “PT PLN Indonesia Power, known as PLN-IP, is a sub-holding company of PT PLN (Persero) holding which is conducting electric power generation and other supporting businesses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5,036 contacts → | ||||
Indirect evidence “High reliability, low prices and high customer satisfaction are cornerstones of our customer commitment, but it doesn't end there.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4,161 contacts → | ||||
Indirect evidence “Statkraft is a leading company in hydropower internationally and Europe’s largest generator of renewable energy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3,195 contacts → | ||||
Indirect evidence “The Israel Electric Corporation (IEC) is a public, government company, 99.85% of its shares are government-owned and traded on the Tel-Aviv and Singapore stock exchange.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2,554 contacts → | ||||
Strong evidence “Ansaldo Energia Group is an international leader in the power generation industry and a key player in the energy transition.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2,475 contacts → | ||||
Indirect evidence “The Tunisian Company of Electricity and Gas (STEG) as a public and a non administrative company, has the essential role to : • Electrify the country • Develop the natural gas…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2,466 contacts → | ||||
Strong evidence “Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company, based in Irving, Texas, that provides essential resources to customers…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2,112 contacts → | ||||
Indirect evidence “A business unit of Constellation (NASDAQ: CEG), Calpine Corporation is America’s largest generator of electricity from natural gas and geothermal resources with operations in…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2,049 contacts → | ||||
Indirect evidence “Com mais de 20 anos de atuação no Brasil, a EDP é uma das maiores empresas privadas do setor elétrico a operar em toda a cadeia de valor.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2,038 contacts → | ||||
Indirect evidence “Our 2300 people are united by a clear purpose.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,998 contacts → | ||||
Strong evidence “Kenya Electricity Generating Company PLC (KenGen) is the leading electric power generating company in East Africa.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,994 contacts → | ||||
Strong evidence “Korea Electric Power Corporation (“KEPCO”) is a state-owned, integrated electric utility company in the Republic of Korea, whose six generation subsidiaries produce the majority…” Source: RevenueBase Database · checked Sep 20, 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: power generation companies britain. 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 power generation companies britain.
- Partial evidence
- Its own public description names part of power generation companies britain, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name power generation companies britain. 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 899 power generation companies britain worldwide
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Power generation companies britain worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among power generation companies britain, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for power generation companies britain are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “power generation companies britain”. 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 power generation companies britain), 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 power generation companies britain, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 97,230 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 20, 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.
Power generation companies britain by location
8 lists · largest firstEvery Power generation companies britain list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Power generation companies britain based in Germany75
- Power generation companies britain based in Italy64
- Power generation companies britain based in the United States58
- Power generation companies britain based in the United Kingdom54
- Power generation companies britain based in Brazil39
- Power generation companies britain based in Türkiye31
- Power generation companies britain based in India29
- Power generation companies britain based in Spain25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names power generation companies britain, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many power generation companies britain are there worldwide?
RevenueBase identified 899 power generation companies britain worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
National Grid, headquartered in London, tops this list with the largest team on record.
Which country has the most power generation companies britain?
Germany leads with 75 companies, followed by Italy (64) and the United States (58). Every power generation companies britain list by country and city is linked on this page.
Which city has the most power generation companies britain?
London leads with 18 headquartered companies, followed by Sao Paulo (10) and Istanbul (9).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 97,230 verified decision-maker contacts tracked across these 899 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.