Company lists · Data refreshed November 2026
Top 25 Heat network operators based in the United Kingdom
RevenueBase identified 83 company matches for heat network operators associated with the United Kingdom as of November 2026 and tracks 37,851 professional contacts across them, including 14,761 with verified work emails. London is the largest hub.
This list covers company matches for heat network operators 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 November 6, 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 heat network operators based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 26,526 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 4,460 contacts → | ||||
Exact match “It's on us to make new energy work.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 865 contacts → | ||||
Exact match “We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 772 contacts → | ||||
Exact match “We are Calisen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 771 contacts → | ||||
Exact match “Our 30+ years’ experience have involved us in the creation of major UK district heating networks in areas such as Sheffield, Nottingham and London.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 546 contacts → | ||||
Exact match “We are BUUK, the UK's leading independent provider of last-mile utility networks.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 534 contacts → | ||||
Exact match “Through our range of innovative energy solutions, we are delivering the future of smart energy – working closely with private and public sector partners to decarbonise the UK…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 247 contacts → | ||||
Exact match “Last Mile designs, builds, owns and manages essential utilities infrastructure so people across Great Britain have access to the heat, power, water and wastewater services they…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 230 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 162 contacts → | ||||
Exact match “Switch2 is the UK’s most experienced and capable provider of end-to-end solutions for residential heat networks.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 147 contacts → | ||||
Exact match “Together to Zero.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 132 contacts → | ||||
Exact match “We are Bring Energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 118 contacts → | ||||
Exact match “If you are operating a heat network, or planning a new heat network, then FairHeat can ensure that you get maximum efficiency from your heat networks while reducing operating and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 94 contacts → | ||||
Exact match “Heat network services that put you and your residents first.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 92 contacts → | ||||
Exact match “ESP Utilities Group Ltd is licensed to operate gas and electricity networks by the industry regulator Ofgem and has helped thousands across the country to make the connection.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 69 contacts → | ||||
Exact match “Rendesco is the UK’s leading clean energy tech developer and operator, focusing on the electrification of heat using heat pumps and heat networks to decarbonise Britain’s…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 44 contacts → | ||||
Exact match “Metropolitan is the leading independent district energy and multi-utility infrastructure provider – the only company combining all the traditional utility networks and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 43 contacts → | ||||
Exact match “Evinox delivers intelligent heat network hardware, technology & services that lower costs, reduce carbon emission & enhances residents comfort through smart real-time management…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 40 contacts → | ||||
Exact match “Sycous provides one solution for heat and energy network operators to meet their energy metering and billing requirements.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 34 contacts → | ||||
Exact match “ThermaMech is one of the UK’s fastest growing businesses within the District Heating Installation market, currently employing around 30 people in the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 34 contacts → | ||||
Exact match “DMG Delta is a leading provider of heat networks, maintenance, engineering and energy solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 33 contacts → | ||||
Exact match “Guru Systems creates intelligent technology to make energy systems more transparent, lower cost and lower carbon.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 32 contacts → | ||||
Exact match “Phoenix Gas Services is an established company, providing a wide range of gas installation and maintenance services to both the private and public sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 30 contacts → | ||||
Exact match “Chirpy Heat is a purpose-led, independent specialist supporting housing providers in running reliable and compliant heat networks.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 29 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 · Nov 6, 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 “heat network operators”. 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 83 heat network operators based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 14,761 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Heat network operators based in the United Kingdom at a glance
As of Nov 6, 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 83 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 “heat network operators” 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 14,761 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 November 6, 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 “heat network operators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many heat network operators are there based in the United Kingdom?
RevenueBase identified 83 company matches for heat network operators associated with the United Kingdom as of November 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 heat network operators?
London leads with 24 company records, followed by Blackburn (2) and Cardiff (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 14,761 professional contacts with verified work emails tracked across these 83 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 83 heat network operators based in the United Kingdom. Start with a free account, no credit card.
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Heat network operators 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
- Heat network operators based in Germany
- Heat network operators based in the Netherlands
- 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 heat network operators 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 83 matching company records for heat network operators based in the United Kingdom, with 37,851 tracked contacts and 14,761 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: November 6, 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 heat network operators 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 | 26,526 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  E.On UKeonenergy.comHQ: Coventry, United KingdomReported employees: 10001+ | Coventry, United Kingdom | 10001+ | Exact match | 4,460 contacts → |
“It's on us to make new energy work.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  BAXIbaxi.co.ukHQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 865 contacts → |
“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Calisencalisen.comHQ: Manchester, United KingdomReported employees: 1,001-5,000 | Manchester, United Kingdom | 1,001-5,000 | Exact match | 772 contacts → |
“We are Calisen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Vital Energivitalenergi.co.ukHQ: Blackburn, United KingdomReported employees: 501-1,000 | Blackburn, United Kingdom | 501-1,000 | Exact match | 771 contacts → |
“Our 30+ years’ experience have involved us in the creation of major UK district heating networks in areas such as Sheffield, Nottingham and London.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Buuk Infrastructurebu-uk.co.ukHQ: Woolpit, United KingdomReported employees: 1,001-5,000 | Woolpit, United Kingdom | 1,001-5,000 | Exact match | 546 contacts → |
“We are BUUK, the UK's leading independent provider of last-mile utility networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | SMS PLCsms-plc.com HQ: Glasgow, United KingdomReported employees: 1,001-5,000 | Glasgow, United Kingdom | 1,001-5,000 | Exact match | 534 contacts → |
“Through our range of innovative energy solutions, we are delivering the future of smart energy – working closely with private and public sector partners to decarbonise the UK…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Last Milelastmile.co.ukHQ: Glasgow, United KingdomReported employees: 501-1,000 | Glasgow, United Kingdom | 501-1,000 | Exact match | 247 contacts → |
“Last Mile designs, builds, owns and manages essential utilities infrastructure so people across Great Britain have access to the heat, power, water and wastewater services they…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  VPIvpi.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 230 contacts → |
“With a capacity of 3.5GW, we are one of the leading power companies in the UK and Ireland.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Switch2 Energy Limitedswitch2.co.ukHQ: Shipley, United KingdomReported employees: 201-500 | Shipley, United Kingdom | 201-500 | Exact match | 162 contacts → |
“Switch2 is the UK’s most experienced and capable provider of end-to-end solutions for residential heat networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Hemikohemiko.comHQ: Carlisle, United KingdomReported employees: 51-200 | Carlisle, United Kingdom | 51-200 | Exact match | 147 contacts → |
“Together to Zero.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Bring Energybringenergy.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 132 contacts → |
“We are Bring Energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Fairheatfairheat.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 118 contacts → |
“If you are operating a heat network, or planning a new heat network, then FairHeat can ensure that you get maximum efficiency from your heat networks while reducing operating and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Insite Energyinsite-energy.co.ukHQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 94 contacts → |
“Heat network services that put you and your residents first.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ESP Utilities Group LTDespug.com HQ: Leatherhead, United KingdomReported employees: 51-200 | Leatherhead, United Kingdom | 51-200 | Exact match | 92 contacts → |
“ESP Utilities Group Ltd is licensed to operate gas and electricity networks by the industry regulator Ofgem and has helped thousands across the country to make the connection.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Rendescorendesco.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 69 contacts → |
“Rendesco is the UK’s leading clean energy tech developer and operator, focusing on the electrification of heat using heat pumps and heat networks to decarbonise Britain’s…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Metropolitanmetropolitan-uk.co.ukHQ: Bury St Edmunds, United KingdomReported employees: 11-50 | Bury St Edmunds, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Metropolitan is the leading independent district energy and multi-utility infrastructure provider – the only company combining all the traditional utility networks and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Evinoxevinox.co.ukHQ: Chessington, United KingdomReported employees: 51-200 | Chessington, United Kingdom | 51-200 | Exact match | 43 contacts → |
“Evinox delivers intelligent heat network hardware, technology & services that lower costs, reduce carbon emission & enhances residents comfort through smart real-time management…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sycoussycous.comHQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 40 contacts → |
“Sycous provides one solution for heat and energy network operators to meet their energy metering and billing requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Thermamechthermamech.comHQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 34 contacts → |
“ThermaMech is one of the UK’s fastest growing businesses within the District Heating Installation market, currently employing around 30 people in the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  DMG Deltadmgdelta.co.ukHQ: Birchanger, United KingdomReported employees: 11-50 | Birchanger, United Kingdom | 11-50 | Exact match | 34 contacts → |
“DMG Delta is a leading provider of heat networks, maintenance, engineering and energy solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Guru Systems LTDgurusystems.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 33 contacts → |
“Guru Systems creates intelligent technology to make energy systems more transparent, lower cost and lower carbon.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Phoenix GAS Services LTDphoenixgasservices.co.uk HQ: Stoke-On-Trent, United KingdomReported employees: 51-200 | Stoke-On-Trent, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Phoenix Gas Services is an established company, providing a wide range of gas installation and maintenance services to both the private and public sectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Chirpy Heatchirpyheat.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 30 contacts → |
“Chirpy Heat is a purpose-led, independent specialist supporting housing providers in running reliable and compliant heat networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Stark Worksstark.co.ukHQ: Epsom, United KingdomReported employees: 11-50 | Epsom, United Kingdom | 11-50 | Exact match | 29 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 83 company matches
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Heat network operators: dataset insights
November 6, 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
81 records in the displayed employee bands.
2 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 83 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: November 6, 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 heat network operators?
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 heat network operators did RevenueBase find based in the United Kingdom?
The saved snapshot records 83 matching company records, 37,851 tracked contacts and 14,761 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: November 6, 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
Heat network operators by geography
Cite this list
RevenueBase Data Team. Top 25 heat network operators based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/heat-network-operators/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
- Heat network operators based in Germany
- Heat network operators based in the Netherlands
- 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 heat network operators based in the United Kingdom
RevenueBase records 83 matching company records for heat network operators based in the United Kingdom, with 37,851 tracked contacts and 14,761 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: November 6, 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 heat network operators 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 | 26,526 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | E.On UKeonenergy.com HQ: Coventry, United KingdomReported employees: 10001+ | Coventry, United Kingdom | 10001+ | Exact match | 4,460 contacts → |
“It's on us to make new energy work.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | BAXIbaxi.co.uk HQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 865 contacts → |
“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Calisencalisen.com HQ: Manchester, United KingdomReported employees: 1,001-5,000 | Manchester, United Kingdom | 1,001-5,000 | Exact match | 772 contacts → |
“We are Calisen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Vital Energivitalenergi.co.uk HQ: Blackburn, United KingdomReported employees: 501-1,000 | Blackburn, United Kingdom | 501-1,000 | Exact match | 771 contacts → |
“Our 30+ years’ experience have involved us in the creation of major UK district heating networks in areas such as Sheffield, Nottingham and London.” Recorded description excerpt · November 6, 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 | 546 contacts → |
“We are BUUK, the UK's leading independent provider of last-mile utility networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | SMS PLCsms-plc.com HQ: Glasgow, United KingdomReported employees: 1,001-5,000 | Glasgow, United Kingdom | 1,001-5,000 | Exact match | 534 contacts → |
“Through our range of innovative energy solutions, we are delivering the future of smart energy – working closely with private and public sector partners to decarbonise the UK…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Last Milelastmile.co.uk HQ: Glasgow, United KingdomReported employees: 501-1,000 | Glasgow, United Kingdom | 501-1,000 | Exact match | 247 contacts → |
“Last Mile designs, builds, owns and manages essential utilities infrastructure so people across Great Britain have access to the heat, power, water and wastewater services they…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | VPIvpi.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 230 contacts → |
“With a capacity of 3.5GW, we are one of the leading power companies in the UK and Ireland.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Switch2 Energy Limitedswitch2.co.uk HQ: Shipley, United KingdomReported employees: 201-500 | Shipley, United Kingdom | 201-500 | Exact match | 162 contacts → |
“Switch2 is the UK’s most experienced and capable provider of end-to-end solutions for residential heat networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Hemikohemiko.com HQ: Carlisle, United KingdomReported employees: 51-200 | Carlisle, United Kingdom | 51-200 | Exact match | 147 contacts → |
“Together to Zero.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Bring Energybringenergy.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 132 contacts → |
“We are Bring Energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Fairheatfairheat.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 118 contacts → |
“If you are operating a heat network, or planning a new heat network, then FairHeat can ensure that you get maximum efficiency from your heat networks while reducing operating and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Insite Energyinsite-energy.co.uk HQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 94 contacts → |
“Heat network services that put you and your residents first.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ESP Utilities Group LTDespug.com HQ: Leatherhead, United KingdomReported employees: 51-200 | Leatherhead, United Kingdom | 51-200 | Exact match | 92 contacts → |
“ESP Utilities Group Ltd is licensed to operate gas and electricity networks by the industry regulator Ofgem and has helped thousands across the country to make the connection.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Rendescorendesco.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 69 contacts → |
“Rendesco is the UK’s leading clean energy tech developer and operator, focusing on the electrification of heat using heat pumps and heat networks to decarbonise Britain’s…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Metropolitanmetropolitan-uk.co.uk HQ: Bury St Edmunds, United KingdomReported employees: 11-50 | Bury St Edmunds, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Metropolitan is the leading independent district energy and multi-utility infrastructure provider – the only company combining all the traditional utility networks and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Evinoxevinox.co.uk HQ: Chessington, United KingdomReported employees: 51-200 | Chessington, United Kingdom | 51-200 | Exact match | 43 contacts → |
“Evinox delivers intelligent heat network hardware, technology & services that lower costs, reduce carbon emission & enhances residents comfort through smart real-time management…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sycoussycous.com HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 40 contacts → |
“Sycous provides one solution for heat and energy network operators to meet their energy metering and billing requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Thermamechthermamech.com HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 34 contacts → |
“ThermaMech is one of the UK’s fastest growing businesses within the District Heating Installation market, currently employing around 30 people in the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | DMG Deltadmgdelta.co.uk HQ: Birchanger, United KingdomReported employees: 11-50 | Birchanger, United Kingdom | 11-50 | Exact match | 34 contacts → |
“DMG Delta is a leading provider of heat networks, maintenance, engineering and energy solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Guru Systems LTDgurusystems.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 33 contacts → |
“Guru Systems creates intelligent technology to make energy systems more transparent, lower cost and lower carbon.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Phoenix GAS Services LTDphoenixgasservices.co.uk HQ: Stoke-On-Trent, United KingdomReported employees: 51-200 | Stoke-On-Trent, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Phoenix Gas Services is an established company, providing a wide range of gas installation and maintenance services to both the private and public sectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Chirpy Heatchirpyheat.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 30 contacts → |
“Chirpy Heat is a purpose-led, independent specialist supporting housing providers in running reliable and compliant heat networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Stark Worksstark.co.uk HQ: Epsom, United KingdomReported employees: 11-50 | Epsom, United Kingdom | 11-50 | Exact match | 29 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 83 company matches
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Heat network operators: dataset insights
November 6, 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
81 records in the displayed employee bands.
2 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 83 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: November 6, 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 heat network operators?
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 heat network operators did RevenueBase find based in the United Kingdom?
The saved snapshot records 83 matching company records, 37,851 tracked contacts and 14,761 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: November 6, 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
Heat network operators by geography
Cite this list
RevenueBase Data Team. Top 25 heat network operators based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/heat-network-operators/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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