Company lists · Data refreshed September 2026
Top 25 Energy as a service companies based in the United Kingdom
RevenueBase identified 1,399 company matches for energy as a service companies associated with the United Kingdom as of September 2026 and tracks 42,585 professional contacts across them, including 14,973 with verified work emails. London is the largest hub.
This list covers company matches for energy as a service 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 15, 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 energy as a service companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,238 contacts → | ||||
Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 2 | 4,555 contacts → | ||||
Exact match “Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 3 | 3,989 contacts → | ||||
Exact match “We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 4 | 2,627 contacts → | ||||
Exact match “We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 5 | 1,064 contacts → | ||||
Exact match “Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 6 | 692 contacts → | ||||
Exact match “We are Calisen.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 7 | 658 contacts → | ||||
Exact match “We are passionate about driving sustainable change for our planet.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 8 | 595 contacts → | ||||
Exact match “Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 9 | 509 contacts → | ||||
Exact match “As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 10 | 402 contacts → | ||||
Exact match “Reon Energy is a leading Cleantech company deploying Intelligent Renewable Energy Microgrids across South Asia, GCC & African region.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 11 | 378 contacts → | ||||
Exact match “We do energy, you do you.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 12 | 373 contacts → | ||||
Exact match “Inspired PLC is a leading technology-enabled provider of energy and sustainability solutions that allow UK and Irish businesses to transition to net-zero carbon and manage their…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 13 | 316 contacts → | ||||
Exact match “EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 14 | 273 contacts → | ||||
Exact match “Yü Energy was built with a mission to shake up the UK business energy market, offering businesses innovative energy solutions that help save time and money.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 15 | 206 contacts → | ||||
Exact match “Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 16 | 190 contacts → | ||||
Exact match “Inenco Group has been acquired by Sustainable Energy First.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 17 | 183 contacts → | ||||
Exact match “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 in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 18 | 171 contacts → | ||||
Exact match “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 19 | 159 contacts → | ||||
Exact match “At Consultiv Utilities, we help organisations to take control of their energy strategy and support them in navigating the complexities of energy, with confidence.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 20 | 157 contacts → | ||||
Exact match “Zenergi supports and empowers your journey to net zero.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 21 | 142 contacts → | ||||
Exact match “Optimised exists to accelerate the shift to a low-carbon future by making energy management work; commercially, operationally and sustainably.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 22 | 129 contacts → | ||||
Exact match “Recognised as the Consultancy of the Year in 2021 by Energy Live News, Consultus delivers world-class consulting, buying and management services for Business Energy and Business…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 23 | 128 contacts → | ||||
Exact match “Utility Bidder is a revolutionary service, set up to ensure customers get the best gas and electricity tariffs on their business energy.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 24 | 125 contacts → | ||||
Exact match “Mitie Energy are an award-winning, UK-based energy, utilities and sustainability solutions business.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 25 | 124 contacts → | ||||
Exact match “We are an award-winning energy consultancy and certified B Corp™.” Recorded in the RevenueBase company graph · Sep 15, 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 “energy as a service 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 1,399 energy as a service companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 14,973 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy as a service companies based in the United Kingdom at a glance
As of Sep 15, 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 1,399 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 “energy as a service 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 14,973 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 15, 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.
Energy as a service companies by metro
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 “energy as a service companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy as a service companies are there based in the United Kingdom?
RevenueBase identified 1,399 company matches for energy as a service 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?
British GAS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy as a service companies?
London leads with 217 company records, followed by Manchester (44) and Leicester (25).
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 14,973 professional contacts with verified work emails tracked across these 1,399 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 15, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,399 energy as a service companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Energy as a service companies by geography
- Energy as a service companies based in Brisbane, Australia
- Energy as a service companies based in Melbourne, Australia
- Energy as a service companies based in Sydney, Australia
- Energy as a service companies based in Belo Horizonte, Brazil
- Energy as a service companies based in Porto Alegre, Brazil
- Energy as a service companies based in Rio De Janeiro, Brazil
- Energy as a service companies based in Sao Paulo, Brazil
- Energy as a service companies based in Berlin, Germany
- Energy as a service companies based in Hamburg, Germany
- Energy as a service companies based in Munich, Germany
- Energy as a service companies based in Ahmedabad, India
- Energy as a service companies based in Bangalore, India
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
- Energy as a service companies based in Brisbane, Australia
- Energy as a service companies based in Melbourne, Australia
- Energy as a service companies based in Sydney, Australia
- Energy as a service companies based in Belo Horizonte, Brazil
- Energy as a service companies based in Porto Alegre, Brazil
- Energy as a service companies based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 25 energy as a service 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 1,399 matching company records for energy as a service companies based in the United Kingdom, with 42,585 tracked contacts and 14,973 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 15, 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 as a service 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 |  British GASbritishgas.co.ukHQ: Windsor, United KingdomReported employees: 10001+ | Windsor, United Kingdom | 10001+ | Exact match | 9,238 contacts → |
“Taking care of things.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Centricacentrica.comHQ: Windsor, United KingdomReported employees: 10001+ | Windsor, United Kingdom | 10001+ | Exact match | 4,555 contacts → |
“Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Shell Energyshell.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,627 contacts → |
“We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Dalkia UKdalkia.co.ukHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 1,064 contacts → |
“Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Calisencalisen.comHQ: Manchester, United KingdomReported employees: 1,001-5,000 | Manchester, United Kingdom | 1,001-5,000 | Exact match | 692 contacts → |
“We are Calisen.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  KBC A Yokogawa Companykbc.globalHQ: Walton-on-thames, United KingdomReported employees: 201-500 | Walton-on-thames, United Kingdom | 201-500 | Exact match | 658 contacts → |
“We are passionate about driving sustainable change for our planet.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Northern GAS And Powerngpltd.co.ukHQ: Gateshead, United KingdomReported employees: 501-1,000 | Gateshead, United Kingdom | 501-1,000 | Exact match | 509 contacts → |
“As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Reon Energy Limitedreonenergy.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 402 contacts → |
“Reon Energy is a leading Cleantech company deploying Intelligent Renewable Energy Microgrids across South Asia, GCC & African region.” Recorded description excerpt · September 15, 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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Inspired PLCinspiredplc.co.uk HQ: Kirkham, United KingdomReported employees: 501-1,000 | Kirkham, United Kingdom | 501-1,000 | Exact match | 373 contacts → |
“Inspired PLC is a leading technology-enabled provider of energy and sustainability solutions that allow UK and Irish businesses to transition to net-zero carbon and manage their…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  EIC Partnershipeic.co.ukHQ: Redditch, United KingdomReported employees: 51-200 | Redditch, United Kingdom | 51-200 | Exact match | 316 contacts → |
“EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  YU Energyyuenergy.co.ukHQ: Nottingham, United KingdomReported employees: 51-200 | Nottingham, United Kingdom | 51-200 | Exact match | 273 contacts → |
“Yü Energy was built with a mission to shake up the UK business energy market, offering businesses innovative energy solutions that help save time and money.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  E.On Control Solutions LTDeon-controls.comHQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 206 contacts → |
“Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Inenco Groupsefirst.comHQ: Lytham, United KingdomReported employees: 501-1,000 | Lytham, United Kingdom | 501-1,000 | Exact match | 190 contacts → |
“Inenco Group has been acquired by Sustainable Energy First.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  CFP Energycfp.energyHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 171 contacts → |
“CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Consultiv Utilitiesconsultivutilities.comHQ: Hebburn, United KingdomReported employees: 201-500 | Hebburn, United Kingdom | 201-500 | Exact match | 159 contacts → |
“At Consultiv Utilities, we help organisations to take control of their energy strategy and support them in navigating the complexities of energy, with confidence.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Zenergizenergi.co.ukHQ: Chilworth, United KingdomReported employees: 51-200 | Chilworth, United Kingdom | 51-200 | Exact match | 157 contacts → |
“Zenergi supports and empowers your journey to net zero.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Optimisedoptimised.netHQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 142 contacts → |
“Optimised exists to accelerate the shift to a low-carbon future by making energy management work; commercially, operationally and sustainably.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Consultusconsultus.comHQ: Leicester, United KingdomReported employees: 51-200 | Leicester, United Kingdom | 51-200 | Exact match | 129 contacts → |
“Recognised as the Consultancy of the Year in 2021 by Energy Live News, Consultus delivers world-class consulting, buying and management services for Business Energy and Business…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Utility Bidder LTDutilitybidder.co.uk HQ: Corby, United KingdomReported employees: 51-200 | Corby, United Kingdom | 51-200 | Exact match | 128 contacts → |
“Utility Bidder is a revolutionary service, set up to ensure customers get the best gas and electricity tariffs on their business energy.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Mitie Energymitie.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 125 contacts → |
“Mitie Energy are an award-winning, UK-based energy, utilities and sustainability solutions business.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  AMBERamber.netHQ: Cardiff, United KingdomReported employees: 51-200 | Cardiff, United Kingdom | 51-200 | Exact match | 124 contacts → |
“We are an award-winning energy consultancy and certified B Corp™.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,399 company matches
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Energy as a service companies: dataset insights
September 15, 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
1,390 records in the displayed employee bands.
9 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 1,399 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 15, 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 ↗
Energy as a service companies by metro
Questions about this company list
What does Exact match mean for energy as a service 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 as a service companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,399 matching company records, 42,585 tracked contacts and 14,973 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 15, 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 as a service companies by geography
- Energy as a service companies based in Brisbane, Australia
- Energy as a service companies based in Melbourne, Australia
- Energy as a service companies based in Sydney, Australia
- Energy as a service companies based in Belo Horizonte, Brazil
- Energy as a service companies based in Porto Alegre, Brazil
- Energy as a service companies based in Rio De Janeiro, Brazil
- Energy as a service companies based in Sao Paulo, Brazil
- Energy as a service companies based in Berlin, Germany
- Energy as a service companies based in Hamburg, Germany
- Energy as a service companies based in Munich, Germany
- Energy as a service companies based in Ahmedabad, India
- Energy as a service companies based in Bangalore, India
Cite this list
RevenueBase Data Team. Top 25 energy as a service companies based in the United Kingdom. Snapshot: September 15, 2026. https://revenuebase.ai/companies/energy-as-a-service-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
- Energy as a service companies based in Brisbane, Australia
- Energy as a service companies based in Melbourne, Australia
- Energy as a service companies based in Sydney, Australia
- Energy as a service companies based in Belo Horizonte, Brazil
- Energy as a service companies based in Porto Alegre, Brazil
- Energy as a service companies based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 25 energy as a service companies based in the United Kingdom
RevenueBase records 1,399 matching company records for energy as a service companies based in the United Kingdom, with 42,585 tracked contacts and 14,973 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 15, 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 as a service 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 | British GASbritishgas.co.uk HQ: Windsor, United KingdomReported employees: 10001+ | Windsor, United Kingdom | 10001+ | Exact match | 9,238 contacts → |
“Taking care of things.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Centricacentrica.com HQ: Windsor, United KingdomReported employees: 10001+ | Windsor, United Kingdom | 10001+ | Exact match | 4,555 contacts → |
“Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Shell Energyshell.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,627 contacts → |
“We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Dalkia UKdalkia.co.uk HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 1,064 contacts → |
“Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Calisencalisen.com HQ: Manchester, United KingdomReported employees: 1,001-5,000 | Manchester, United Kingdom | 1,001-5,000 | Exact match | 692 contacts → |
“We are Calisen.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | KBC A Yokogawa Companykbc.global HQ: Walton-on-thames, United KingdomReported employees: 201-500 | Walton-on-thames, United Kingdom | 201-500 | Exact match | 658 contacts → |
“We are passionate about driving sustainable change for our planet.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Northern GAS And Powerngpltd.co.uk HQ: Gateshead, United KingdomReported employees: 501-1,000 | Gateshead, United Kingdom | 501-1,000 | Exact match | 509 contacts → |
“As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Reon Energy Limitedreonenergy.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 402 contacts → |
“Reon Energy is a leading Cleantech company deploying Intelligent Renewable Energy Microgrids across South Asia, GCC & African region.” Recorded description excerpt · September 15, 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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Inspired PLCinspiredplc.co.uk HQ: Kirkham, United KingdomReported employees: 501-1,000 | Kirkham, United Kingdom | 501-1,000 | Exact match | 373 contacts → |
“Inspired PLC is a leading technology-enabled provider of energy and sustainability solutions that allow UK and Irish businesses to transition to net-zero carbon and manage their…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | EIC Partnershipeic.co.uk HQ: Redditch, United KingdomReported employees: 51-200 | Redditch, United Kingdom | 51-200 | Exact match | 316 contacts → |
“EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | YU Energyyuenergy.co.uk HQ: Nottingham, United KingdomReported employees: 51-200 | Nottingham, United Kingdom | 51-200 | Exact match | 273 contacts → |
“Yü Energy was built with a mission to shake up the UK business energy market, offering businesses innovative energy solutions that help save time and money.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | E.On Control Solutions LTDeon-controls.com HQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 206 contacts → |
“Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Inenco Groupsefirst.com HQ: Lytham, United KingdomReported employees: 501-1,000 | Lytham, United Kingdom | 501-1,000 | Exact match | 190 contacts → |
“Inenco Group has been acquired by Sustainable Energy First.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | 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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | CFP Energycfp.energy HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 171 contacts → |
“CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Consultiv Utilitiesconsultivutilities.com HQ: Hebburn, United KingdomReported employees: 201-500 | Hebburn, United Kingdom | 201-500 | Exact match | 159 contacts → |
“At Consultiv Utilities, we help organisations to take control of their energy strategy and support them in navigating the complexities of energy, with confidence.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Zenergizenergi.co.uk HQ: Chilworth, United KingdomReported employees: 51-200 | Chilworth, United Kingdom | 51-200 | Exact match | 157 contacts → |
“Zenergi supports and empowers your journey to net zero.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Optimisedoptimised.net HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 142 contacts → |
“Optimised exists to accelerate the shift to a low-carbon future by making energy management work; commercially, operationally and sustainably.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Consultusconsultus.com HQ: Leicester, United KingdomReported employees: 51-200 | Leicester, United Kingdom | 51-200 | Exact match | 129 contacts → |
“Recognised as the Consultancy of the Year in 2021 by Energy Live News, Consultus delivers world-class consulting, buying and management services for Business Energy and Business…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Utility Bidder LTDutilitybidder.co.uk HQ: Corby, United KingdomReported employees: 51-200 | Corby, United Kingdom | 51-200 | Exact match | 128 contacts → |
“Utility Bidder is a revolutionary service, set up to ensure customers get the best gas and electricity tariffs on their business energy.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Mitie Energymitie.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 125 contacts → |
“Mitie Energy are an award-winning, UK-based energy, utilities and sustainability solutions business.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | AMBERamber.net HQ: Cardiff, United KingdomReported employees: 51-200 | Cardiff, United Kingdom | 51-200 | Exact match | 124 contacts → |
“We are an award-winning energy consultancy and certified B Corp™.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,399 company matches
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Energy as a service companies: dataset insights
September 15, 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
1,390 records in the displayed employee bands.
9 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 1,399 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 15, 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 ↗
Energy as a service companies by metro
Questions about this company list
What does Exact match mean for energy as a service 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 as a service companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,399 matching company records, 42,585 tracked contacts and 14,973 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 15, 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 as a service companies by geography
- Energy as a service companies based in Brisbane, Australia
- Energy as a service companies based in Melbourne, Australia
- Energy as a service companies based in Sydney, Australia
- Energy as a service companies based in Belo Horizonte, Brazil
- Energy as a service companies based in Porto Alegre, Brazil
- Energy as a service companies based in Rio De Janeiro, Brazil
- Energy as a service companies based in Sao Paulo, Brazil
- Energy as a service companies based in Berlin, Germany
- Energy as a service companies based in Hamburg, Germany
- Energy as a service companies based in Munich, Germany
- Energy as a service companies based in Ahmedabad, India
- Energy as a service companies based in Bangalore, India
Cite this list
RevenueBase Data Team. Top 25 energy as a service companies based in the United Kingdom. Snapshot: September 15, 2026. https://revenuebase.ai/companies/energy-as-a-service-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
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- Energy as a service companies based in Brisbane, Australia
- Energy as a service companies based in Melbourne, Australia
- Energy as a service companies based in Sydney, Australia
- Energy as a service companies based in Belo Horizonte, Brazil
- Energy as a service companies based in Porto Alegre, Brazil
- Energy as a service companies based in Rio De Janeiro, Brazil