Company lists · Data refreshed September 2026
Top 25 Pre nationalisation UK electric power companies based in the United Kingdom
RevenueBase identified 45 company matches for pre nationalisation UK electric power companies associated with the United Kingdom as of September 2026 and tracks 39,517 professional contacts across them, including 13,920 with verified work emails. London is the largest hub.
This list covers company matches for pre nationalisation UK electric power companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest pre nationalisation UK electric power companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 24,403 contacts → | ||||
Exact match “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 in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 8,188 contacts → | ||||
Exact match “EDF is leading the charge towards An Electric Britain to help make energy more affordable and sustainable.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 2,679 contacts → | ||||
Exact match “npower is one of Britain’s leading energy companies, serving domestic and business customers with electricity and gas.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 1,109 contacts → | ||||
Exact match “We're responsible for maintaining the electricity networks supplying over 3.9 million homes and businesses across central southern England and north of the Central Belt of…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 723 contacts → | ||||
Exact match “NIE Networks is responsible for the safe, secure and reliable supply of electricity to homes, farms and businesses across Northern Ireland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 504 contacts → | ||||
Exact match “We are BUUK, the UK's leading independent provider of last-mile utility networks.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 331 contacts → | ||||
Exact match “Welcome to Corona Energy – a leading independent energy supplier to UK businesses.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 263 contacts → | ||||
Exact match “Opus Energy is a leading independent supplier of renewable source electricity to businesses all across the UK.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 239 contacts → | ||||
Exact match “Based in Newmarket, Suffolk, we cover a wide range of industrial, commercial and residential smart metering and gas and electric applications across England, Scotland and Wales.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 214 contacts → | ||||
Exact match “With a capacity of 3.5GW, we are one of the leading power companies in the UK and Ireland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 174 contacts → | ||||
Exact match “Conrad Energy is a leading UK energy company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 94 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 37 contacts → | ||||
Exact match “EnBW Energie-Baden-Württemberg AG - the name reflects our roots and our commitment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 27 contacts → | ||||
Exact match “Yü Group PLC is driving innovation in energy and utility supply solutions for UK businesses.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 25 contacts → | ||||
Exact match “At Stark Works, we specialise in developing and implementing gas and electricity networks for diverse UK projects, be it commercial, industrial, or large residential spaces.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 12 contacts → | ||||
Exact match “Having been established over 60 years ago, Bonus Electrical wholesale continues to thrive as an independent supplier of all things electrical B2B and B2C.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 9 contacts → | ||||
Exact match “EPG is an independent electricity supplier serving Industrial & Commercial energy producers & consumers in UK.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “Green Frog Power Ltd is a utility company based at 17 The Courtyard, Gorsey Lane, Coleshill, Birmingham, B46 1JA.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 8 contacts → | ||||
Exact match “Chancery Contracts Limited is a company based in the West Midlands offering a full range of electrical services to the industrial, commercial, retail, and large domestic sectors…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 8 contacts → | ||||
Exact match “CALON ENERGY After buying its first gas fired power station, Baglan Bay Power Station in Port Talbot in October 2012, MPF Operations has since added two further gas fired power…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “MARBLE POWER LIMITED is an energy supply company based out of Kestrel Court, Waterwells Drive, Quedgeley, Gloucester, United Kingdom.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “Operating in England & Wales within the utility industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “MAST Energy Developments PLC (“MED”) is a public company, incorporated in England and Wales and with its main area of operations in England.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “Oakwood Energy Group provide Electrical, Renewable and Energy Procurement Services for home owners and businesses throughout the UK.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “pre nationalisation UK electric power companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 45 pre nationalisation UK electric power companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 13,920 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Pre nationalisation UK electric power companies based in the United Kingdom at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 45 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “pre nationalisation UK electric power companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 13,920 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “pre nationalisation UK electric power companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many pre nationalisation UK electric power companies are there based in the United Kingdom?
RevenueBase identified 45 company matches for pre nationalisation UK electric power companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
National Grid tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most pre nationalisation UK electric power companies?
London leads with 8 company records, followed by Chelmsford (2) and Nash (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 13,920 professional contacts with verified work emails tracked across these 45 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 45 pre nationalisation UK electric power companies based in the United Kingdom. Start with a free account, no credit card.
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Pre nationalisation UK electric power companies by geography
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Pre nationalisation UK electric power companies based in Germany
- Pre nationalisation UK electric power companies based in Italy
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
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Company intelligence · public preview
Top 25 pre nationalisation UK electric power companies based in the 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 45 matching company records for pre nationalisation UK electric power companies based in the United Kingdom, with 39,517 tracked contacts and 13,920 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 19, 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 pre nationalisation UK electric power companies based in the 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 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Npowernpower.comHQ: Swindon, United KingdomReported employees: 10001+ | Swindon, United Kingdom | 10001+ | Exact match | 2,679 contacts → |
“npower is one of Britain’s leading energy companies, serving domestic and business customers with electricity and gas.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Perth, United KingdomReported employees: 1,001-5,000 | Perth, United Kingdom | 1,001-5,000 | Exact match | 1,109 contacts → |
“We're responsible for maintaining the electricity networks supplying over 3.9 million homes and businesses across central southern England and north of the Central Belt of…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | NIE Networksnienetworks.co.uk HQ: Belfast, United KingdomReported employees: 1,001-5,000 | Belfast, United Kingdom | 1,001-5,000 | Exact match | 723 contacts → |
“NIE Networks is responsible for the safe, secure and reliable supply of electricity to homes, farms and businesses across Northern Ireland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Buuk Infrastructurebu-uk.co.uk HQ: Woolpit, United KingdomReported employees: 1,001-5,000 | Woolpit, United Kingdom | 1,001-5,000 | Exact match | 504 contacts → |
“We are BUUK, the UK's leading independent provider of last-mile utility networks.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Corona Energycoronaenergy.co.ukHQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 331 contacts → |
“Welcome to Corona Energy – a leading independent energy supplier to UK businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Opus Energyopusenergy.comHQ: Northampton, United KingdomReported employees: 501-1,000 | Northampton, United Kingdom | 501-1,000 | Exact match | 263 contacts → |
“Opus Energy is a leading independent supplier of renewable source electricity to businesses all across the UK.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Sureserve Energy Services Meterssureserve.co.ukHQ: Newmarket, United KingdomReported employees: 201-500 | Newmarket, United Kingdom | 201-500 | Exact match | 239 contacts → |
“Based in Newmarket, Suffolk, we cover a wide range of industrial, commercial and residential smart metering and gas and electric applications across England, Scotland and Wales.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Conrad Energyconradenergy.co.ukHQ: Abingdon, United KingdomReported employees: 51-200 | Abingdon, United Kingdom | 51-200 | Exact match | 174 contacts → |
“Conrad Energy is a leading UK energy company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | OVO Energy LTDovoenergy.com HQ: Bristol, United KingdomReported employees: 1,001-5,000 | Bristol, United Kingdom | 1,001-5,000 | Exact match | 94 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  YÜ Group PLCyugroupplc.comHQ: Nottingham, United KingdomReported employees: 51-200 | Nottingham, United Kingdom | 51-200 | Exact match | 27 contacts → |
“Yü Group PLC is driving innovation in energy and utility supply solutions for UK businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Stark Worksstark.co.uk HQ: Epsom, United KingdomReported employees: 11-50 | Epsom, United Kingdom | 11-50 | Exact match | 25 contacts → |
“At Stark Works, we specialise in developing and implementing gas and electricity networks for diverse UK projects, be it commercial, industrial, or large residential spaces.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Bonus Electricalbonuselectrical.co.uk HQ: Hull, United KingdomReported employees: 51-200 | Hull, United Kingdom | 51-200 | Exact match | 12 contacts → |
“Having been established over 60 years ago, Bonus Electrical wholesale continues to thrive as an independent supplier of all things electrical B2B and B2C.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  EPG Energyepgenergy.comHQ: Chelmsford, United KingdomReported employees: 1-10 | Chelmsford, United Kingdom | 1-10 | Exact match | 9 contacts → |
“EPG is an independent electricity supplier serving Industrial & Commercial energy producers & consumers in UK.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Green Frog Power LTDgreenfrogpower.co.uk HQ: Birmingham, United KingdomReported employees: 11-50 | Birmingham, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Green Frog Power Ltd is a utility company based at 17 The Courtyard, Gorsey Lane, Coleshill, Birmingham, B46 1JA.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Chancery Contracts Limitedchancerycontracts.co.uk HQ: Wolverhampton, United KingdomReported employees: 11-50 | Wolverhampton, United Kingdom | 11-50 | Exact match | 8 contacts → |
“Chancery Contracts Limited is a company based in the West Midlands offering a full range of electrical services to the industrial, commercial, retail, and large domestic sectors…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Calon Energy Limitedcalonenergy.com HQ: Newport, United KingdomReported employees: 11-50 | Newport, United Kingdom | 11-50 | Exact match | 8 contacts → |
“CALON ENERGY After buying its first gas fired power station, Baglan Bay Power Station in Port Talbot in October 2012, MPF Operations has since added two further gas fired power…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Marble Power Limitedmarble-power.comHQ: Newport, United KingdomReported employees: 11-50 | Newport, United Kingdom | 11-50 | Exact match | 8 contacts → |
“MARBLE POWER LIMITED is an energy supply company based out of Kestrel Court, Waterwells Drive, Quedgeley, Gloucester, United Kingdom.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Doocey Multi Utilitiesdooceygroup.co.uk HQ: Chapeltown, United KingdomReported employees: 201-500 | Chapeltown, United Kingdom | 201-500 | Exact match | 5 contacts → |
“Operating in England & Wales within the utility industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mast Energy Developments PLCmed.energy HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 3 contacts → |
“MAST Energy Developments PLC (“MED”) is a public company, incorporated in England and Wales and with its main area of operations in England.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Oakwood Energy LTDoakwoodenergygroup.co.uk HQ: Winsford, United KingdomReported employees: 1-10 | Winsford, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Oakwood Energy Group provide Electrical, Renewable and Energy Procurement Services for home owners and businesses throughout the UK.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ICD Energy Limitedicd-energy.com HQ: South Yorkshire, United KingdomReported employees: 1-10 | South Yorkshire, United Kingdom | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 45 company matches
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Pre nationalisation UK electric power companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
45 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 45 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 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 pre nationalisation UK electric power 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 pre nationalisation UK electric power companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 45 matching company records, 39,517 tracked contacts and 13,920 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 19, 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
Pre nationalisation UK electric power companies by geography
Cite this list
RevenueBase Data Team. Top 25 pre nationalisation UK electric power companies based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/pre-nationalisation-uk-electric-power-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Pre nationalisation UK electric power companies based in Germany
- Pre nationalisation UK electric power companies based in Italy
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom
- Media companies based in the United Kingdom
Company intelligence · public preview
Top 25 pre nationalisation UK electric power companies based in the United Kingdom
RevenueBase records 45 matching company records for pre nationalisation UK electric power companies based in the United Kingdom, with 39,517 tracked contacts and 13,920 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 19, 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 pre nationalisation UK electric power companies based in the 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 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Npowernpower.com HQ: Swindon, United KingdomReported employees: 10001+ | Swindon, United Kingdom | 10001+ | Exact match | 2,679 contacts → |
“npower is one of Britain’s leading energy companies, serving domestic and business customers with electricity and gas.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Perth, United KingdomReported employees: 1,001-5,000 | Perth, United Kingdom | 1,001-5,000 | Exact match | 1,109 contacts → |
“We're responsible for maintaining the electricity networks supplying over 3.9 million homes and businesses across central southern England and north of the Central Belt of…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | NIE Networksnienetworks.co.uk HQ: Belfast, United KingdomReported employees: 1,001-5,000 | Belfast, United Kingdom | 1,001-5,000 | Exact match | 723 contacts → |
“NIE Networks is responsible for the safe, secure and reliable supply of electricity to homes, farms and businesses across Northern Ireland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Buuk Infrastructurebu-uk.co.uk HQ: Woolpit, United KingdomReported employees: 1,001-5,000 | Woolpit, United Kingdom | 1,001-5,000 | Exact match | 504 contacts → |
“We are BUUK, the UK's leading independent provider of last-mile utility networks.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Corona Energycoronaenergy.co.uk HQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 331 contacts → |
“Welcome to Corona Energy – a leading independent energy supplier to UK businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Opus Energyopusenergy.com HQ: Northampton, United KingdomReported employees: 501-1,000 | Northampton, United Kingdom | 501-1,000 | Exact match | 263 contacts → |
“Opus Energy is a leading independent supplier of renewable source electricity to businesses all across the UK.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sureserve Energy Services Meterssureserve.co.uk HQ: Newmarket, United KingdomReported employees: 201-500 | Newmarket, United Kingdom | 201-500 | Exact match | 239 contacts → |
“Based in Newmarket, Suffolk, we cover a wide range of industrial, commercial and residential smart metering and gas and electric applications across England, Scotland and Wales.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Conrad Energyconradenergy.co.uk HQ: Abingdon, United KingdomReported employees: 51-200 | Abingdon, United Kingdom | 51-200 | Exact match | 174 contacts → |
“Conrad Energy is a leading UK energy company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | OVO Energy LTDovoenergy.com HQ: Bristol, United KingdomReported employees: 1,001-5,000 | Bristol, United Kingdom | 1,001-5,000 | Exact match | 94 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | YÜ Group PLCyugroupplc.com HQ: Nottingham, United KingdomReported employees: 51-200 | Nottingham, United Kingdom | 51-200 | Exact match | 27 contacts → |
“Yü Group PLC is driving innovation in energy and utility supply solutions for UK businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Stark Worksstark.co.uk HQ: Epsom, United KingdomReported employees: 11-50 | Epsom, United Kingdom | 11-50 | Exact match | 25 contacts → |
“At Stark Works, we specialise in developing and implementing gas and electricity networks for diverse UK projects, be it commercial, industrial, or large residential spaces.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Bonus Electricalbonuselectrical.co.uk HQ: Hull, United KingdomReported employees: 51-200 | Hull, United Kingdom | 51-200 | Exact match | 12 contacts → |
“Having been established over 60 years ago, Bonus Electrical wholesale continues to thrive as an independent supplier of all things electrical B2B and B2C.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | EPG Energyepgenergy.com HQ: Chelmsford, United KingdomReported employees: 1-10 | Chelmsford, United Kingdom | 1-10 | Exact match | 9 contacts → |
“EPG is an independent electricity supplier serving Industrial & Commercial energy producers & consumers in UK.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Green Frog Power LTDgreenfrogpower.co.uk HQ: Birmingham, United KingdomReported employees: 11-50 | Birmingham, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Green Frog Power Ltd is a utility company based at 17 The Courtyard, Gorsey Lane, Coleshill, Birmingham, B46 1JA.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Chancery Contracts Limitedchancerycontracts.co.uk HQ: Wolverhampton, United KingdomReported employees: 11-50 | Wolverhampton, United Kingdom | 11-50 | Exact match | 8 contacts → |
“Chancery Contracts Limited is a company based in the West Midlands offering a full range of electrical services to the industrial, commercial, retail, and large domestic sectors…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Calon Energy Limitedcalonenergy.com HQ: Newport, United KingdomReported employees: 11-50 | Newport, United Kingdom | 11-50 | Exact match | 8 contacts → |
“CALON ENERGY After buying its first gas fired power station, Baglan Bay Power Station in Port Talbot in October 2012, MPF Operations has since added two further gas fired power…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Marble Power Limitedmarble-power.com HQ: Newport, United KingdomReported employees: 11-50 | Newport, United Kingdom | 11-50 | Exact match | 8 contacts → |
“MARBLE POWER LIMITED is an energy supply company based out of Kestrel Court, Waterwells Drive, Quedgeley, Gloucester, United Kingdom.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Doocey Multi Utilitiesdooceygroup.co.uk HQ: Chapeltown, United KingdomReported employees: 201-500 | Chapeltown, United Kingdom | 201-500 | Exact match | 5 contacts → |
“Operating in England & Wales within the utility industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mast Energy Developments PLCmed.energy HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 3 contacts → |
“MAST Energy Developments PLC (“MED”) is a public company, incorporated in England and Wales and with its main area of operations in England.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Oakwood Energy LTDoakwoodenergygroup.co.uk HQ: Winsford, United KingdomReported employees: 1-10 | Winsford, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Oakwood Energy Group provide Electrical, Renewable and Energy Procurement Services for home owners and businesses throughout the UK.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ICD Energy Limitedicd-energy.com HQ: South Yorkshire, United KingdomReported employees: 1-10 | South Yorkshire, United Kingdom | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 45 company matches
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Pre nationalisation UK electric power companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
45 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 45 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 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 pre nationalisation UK electric power 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 pre nationalisation UK electric power companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 45 matching company records, 39,517 tracked contacts and 13,920 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 19, 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
Pre nationalisation UK electric power companies by geography
Cite this list
RevenueBase Data Team. Top 25 pre nationalisation UK electric power companies based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/pre-nationalisation-uk-electric-power-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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