Company lists · Data refreshed October 2026
Top 25 Home energy efficiency firms based in the United Kingdom
RevenueBase identified 813 company matches for home energy efficiency firms associated with the United Kingdom as of October 2026 and tracks 15,812 professional contacts across them, including 4,714 with verified work emails. London is the largest hub.
This list covers company matches for home energy efficiency firms 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 October 14, 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 home energy efficiency firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,535 contacts → | ||||
Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 2 | 173 contacts → | ||||
Exact match “Changeworks is a leading organisation dedicated to decarbonising Scotland’s homes and a just transition to net zero.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 3 | 112 contacts → | ||||
Exact match “Managing business energy can be overwhelming.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 4 | 111 contacts → | ||||
Exact match “We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 5 | 109 contacts → | ||||
Exact match “Hometree is a home energy services company on a mission to accelerate the transition to net zero.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 6 | 96 contacts → | ||||
Exact match “We started out as a trailblazing boiler installation company in 2017 – the first to offer everything effortlessly online.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 7 | 94 contacts → | ||||
Exact match “Sustainable Building Services (UK) Ltd (SBS) is a purpose-led, multi-award-winning turnkey solutions provider specialising in retrofit energy efficiency and decarbonisation works…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 8 | 93 contacts → | ||||
Exact match “At City Energy Network, we help households across the UK improve energy efficiency, cut bills, and reduce carbon emissions.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 9 | 88 contacts → | ||||
Exact match “At LASER Energy, part of the Commercial Services Group Energy & Environment portfolio, a wholly-owned business unit of Kent County Council, we help public sector organisations…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 10 | 86 contacts → | ||||
Exact match “At AgilityEco our vision is a warm, healthy home for everyone.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 11 | 75 contacts → | ||||
Exact match “Established in 2016, we have grown to become one of the most reputable and reliable specialists within the renewable, heating, and insulation sectors in the United Kingdom.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 12 | 67 contacts → | ||||
Exact match “At 21 Degrees, we believe buildings should be designed for lower energy use, healthier spaces and better comfort.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 13 | 57 contacts → | ||||
Exact match “Since 2006, we’ve been on a mission to make home energy tech that’s easy to use and understand, reduces energy costs, increases comfort and looks great in people’s homes.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 14 | 54 contacts → | ||||
Exact match “IZ Energy is pioneering a sustainable future.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 15 | 47 contacts → | ||||
Exact match “Secure your greener future with renewable energy solutions!” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 16 | 46 contacts → | ||||
Exact match “Energy solutions made easy.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 17 | 46 contacts → | ||||
Exact match “Severn Wye changes the way people, businesses and communities use energy, to meet the urgent need for warm, healthy homes now, and to create a low-carbon future driven by clean…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 18 | 45 contacts → | ||||
Exact match “Sureserve Energy Services North is a leading national installer of insulation, heating solutions and renewable technologies.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 19 | 42 contacts → | ||||
Exact match “At Green Home Systems, we deliver whole-house retrofit solutions that make homes warmer, more energy efficient, and lower cost to run.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 20 | 42 contacts → | ||||
Exact match “At Golden Globe Merchants, we deliver high-performance, energy-efficient solutions designed to future-proof UK homes.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 21 | 41 contacts → | ||||
Exact match “Effective Home was established in 2016 to help homeowners make their homes more energy efficient, save money and reduce their carbon footprint.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 22 | 41 contacts → | ||||
Exact match “ECO Providers is a trusted leader in renewable and energy efficiency solutions, helping homeowners, businesses, and social housing organisations reduce energy costs, improve…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 23 | 40 contacts → | ||||
Exact match “Cenergist is a specialist energy and water efficiency company in the UK and Europe.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 24 | 39 contacts → | ||||
Exact match “At Carbon Rewind, we are optimistic about the energy future of the UK, and committed to doing our part to deliver the vision of a more sustainable future.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase | |||||
| 25 | 37 contacts → | ||||
Exact match “Avonside Energy: Your Partner in Sustainable Building Solutions At Avonside Energy, we are dedicated to delivering best-in-class services across: New Build Insulation…” Recorded in the RevenueBase company graph · Oct 14, 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 “home energy efficiency firms”. 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 813 home energy efficiency firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 4,714 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Home energy efficiency firms based in the United Kingdom at a glance
As of Oct 14, 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 813 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 “home energy efficiency firms” 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 4,714 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 October 14, 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.
Home energy efficiency firms 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 “home energy efficiency firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many home energy efficiency firms are there based in the United Kingdom?
RevenueBase identified 813 company matches for home energy efficiency firms associated with the United Kingdom as of October 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 home energy efficiency firms?
London leads with 88 company records, followed by Birmingham (18) and Manchester (17).
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 4,714 professional contacts with verified work emails tracked across these 813 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 October 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 813 home energy efficiency firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Home energy efficiency firms by geography
- Home energy efficiency firms based in Toronto, Canada
- Home energy efficiency firms based in Paris, France
- Home energy efficiency firms based in Barcelona, Spain
- Home energy efficiency firms based in London, United Kingdom
- Home energy efficiency firms based in New York, United States
- Home energy efficiency firms based in Australia
- Home energy efficiency firms based in Belgium
- Home energy efficiency firms based in Brazil
- Home energy efficiency firms based in Canada
- Home energy efficiency firms based in France
- Home energy efficiency firms based in Germany
- Home energy efficiency firms based in 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
- Home energy efficiency firms based in Toronto, Canada
- Home energy efficiency firms based in Paris, France
- Home energy efficiency firms based in Barcelona, Spain
- Home energy efficiency firms based in London, United Kingdom
- Home energy efficiency firms based in New York, United States
- Home energy efficiency firms based in Australia
Company intelligence · public preview
Top 25 home energy efficiency firms 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 813 matching company records for home energy efficiency firms based in the United Kingdom, with 15,812 tracked contacts and 4,714 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: October 14, 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 home energy efficiency firms 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 | 9,535 contacts → |
“Taking care of things.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Changeworkschangeworks.org.ukHQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 173 contacts → |
“Changeworks is a leading organisation dedicated to decarbonising Scotland’s homes and a just transition to net zero.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  TROOtroocost.comHQ: Doxford International Business Park, United KingdomReported employees: 51-200 | Doxford International Business Park, United Kingdom | 51-200 | Exact match | 112 contacts → |
“Managing business energy can be overwhelming.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Livgreenlivgreen.co.uk HQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 111 contacts → |
“We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Hometreehometree.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 109 contacts → |
“Hometree is a home energy services company on a mission to accelerate the transition to net zero.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  BOXTboxt.co.ukHQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 96 contacts → |
“We started out as a trailblazing boiler installation company in 2017 – the first to offer everything effortlessly online.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Sustainable Building Services UK LTDsustainablebuildinguk.com HQ: Skelmersdale, United KingdomReported employees: 51-200 | Skelmersdale, United Kingdom | 51-200 | Exact match | 94 contacts → |
“Sustainable Building Services (UK) Ltd (SBS) is a purpose-led, multi-award-winning turnkey solutions provider specialising in retrofit energy efficiency and decarbonisation works…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | City Energy Networkcityenergy.co.uk HQ: Cardiff, United KingdomReported employees: 51-200 | Cardiff, United Kingdom | 51-200 | Exact match | 93 contacts → |
“At City Energy Network, we help households across the UK improve energy efficiency, cut bills, and reduce carbon emissions.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Laser Energylaserenergy.org.ukHQ: West Malling, United KingdomReported employees: 51-200 | West Malling, United Kingdom | 51-200 | Exact match | 88 contacts → |
“At LASER Energy, part of the Commercial Services Group Energy & Environment portfolio, a wholly-owned business unit of Kent County Council, we help public sector organisations…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Agilityecoagilityeco.co.ukHQ: Sutton, United KingdomReported employees: 51-200 | Sutton, United Kingdom | 51-200 | Exact match | 86 contacts → |
“At AgilityEco our vision is a warm, healthy home for everyone.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Next Energynextenergyuk.co.uk HQ: Knowsley, United KingdomReported employees: 51-200 | Knowsley, United Kingdom | 51-200 | Exact match | 75 contacts → |
“Established in 2016, we have grown to become one of the most reputable and reliable specialists within the renewable, heating, and insulation sectors in the United Kingdom.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  21 Degrees21degrees.comHQ: Nationwide, United KingdomReported employees: 201-500 | Nationwide, United Kingdom | 201-500 | Exact match | 67 contacts → |
“At 21 Degrees, we believe buildings should be designed for lower energy use, healthier spaces and better comfort.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | GEO Green Energy Optionsgeotogether.com HQ: Hardwick, United KingdomReported employees: 51-200 | Hardwick, United Kingdom | 51-200 | Exact match | 57 contacts → |
“Since 2006, we’ve been on a mission to make home energy tech that’s easy to use and understand, reduces energy costs, increases comfort and looks great in people’s homes.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | IZ Energy Services LTDizenergy.co.uk HQ: Barking, United KingdomReported employees: 51-200 | Barking, United Kingdom | 51-200 | Exact match | 54 contacts → |
“IZ Energy is pioneering a sustainable future.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Cotswold Energy Groupcotswold.energyHQ: Stonehouse, United KingdomReported employees: 51-200 | Stonehouse, United Kingdom | 51-200 | Exact match | 47 contacts → |
“Secure your greener future with renewable energy solutions!” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  The Improveasy Groupimproveasy.comHQ: Altrincham, United KingdomReported employees: 51-200 | Altrincham, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Energy solutions made easy.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Severn WYEsevernwye.org.uk HQ: Gloucester, United KingdomReported employees: 51-200 | Gloucester, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Severn Wye changes the way people, businesses and communities use energy, to meet the urgent need for warm, healthy homes now, and to create a low-carbon future driven by clean…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Sureserve Energy Services Northsureserve.co.ukHQ: Brighouse, United KingdomReported employees: 1,001-5,000 | Brighouse, United Kingdom | 1,001-5,000 | Exact match | 45 contacts → |
“Sureserve Energy Services North is a leading national installer of insulation, heating solutions and renewable technologies.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Green Home Systemsgreenhomesystems.co.uk HQ: Irvine, United KingdomReported employees: 51-200 | Irvine, United Kingdom | 51-200 | Exact match | 42 contacts → |
“At Green Home Systems, we deliver whole-house retrofit solutions that make homes warmer, more energy efficient, and lower cost to run.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Golden Globe Merchants LTDgoldenglobeltd.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 42 contacts → |
“At Golden Globe Merchants, we deliver high-performance, energy-efficient solutions designed to future-proof UK homes.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Effective Homeeffectivehome.co.ukHQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Effective Home was established in 2016 to help homeowners make their homes more energy efficient, save money and reduce their carbon footprint.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  ECO Providersecoproviders.co.ukHQ: Clitheroe, United KingdomReported employees: 51-200 | Clitheroe, United Kingdom | 51-200 | Exact match | 41 contacts → |
“ECO Providers is a trusted leader in renewable and energy efficiency solutions, helping homeowners, businesses, and social housing organisations reduce energy costs, improve…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cenergistcenergist.comHQ: Washington, United KingdomReported employees: 201-500 | Washington, United Kingdom | 201-500 | Exact match | 40 contacts → |
“Cenergist is a specialist energy and water efficiency company in the UK and Europe.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Carbon Rewindcarbonrewind.com HQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 39 contacts → |
“At Carbon Rewind, we are optimistic about the energy future of the UK, and committed to doing our part to deliver the vision of a more sustainable future.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Avonside Energyavonsideenergy.co.ukHQ: Rearsby, United KingdomReported employees: 201-500 | Rearsby, United Kingdom | 201-500 | Exact match | 37 contacts → |
“Avonside Energy: Your Partner in Sustainable Building Solutions At Avonside Energy, we are dedicated to delivering best-in-class services across: New Build Insulation…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 813 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Home energy efficiency firms: dataset insights
October 14, 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
807 records in the displayed employee bands.
6 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 813 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: October 14, 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 ↗
Home energy efficiency firms by metro
Questions about this company list
What does Exact match mean for home energy efficiency firms?
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 home energy efficiency firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 813 matching company records, 15,812 tracked contacts and 4,714 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: October 14, 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
Home energy efficiency firms by geography
- Home energy efficiency firms based in Toronto, Canada
- Home energy efficiency firms based in Paris, France
- Home energy efficiency firms based in Barcelona, Spain
- Home energy efficiency firms based in London, United Kingdom
- Home energy efficiency firms based in New York, United States
- Home energy efficiency firms based in Australia
- Home energy efficiency firms based in Belgium
- Home energy efficiency firms based in Brazil
- Home energy efficiency firms based in Canada
- Home energy efficiency firms based in France
- Home energy efficiency firms based in Germany
- Home energy efficiency firms based in India
Cite this list
RevenueBase Data Team. Top 25 home energy efficiency firms based in the United Kingdom. Snapshot: October 14, 2026. https://revenuebase.ai/companies/home-energy-efficiency-firms/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
- Home energy efficiency firms based in Toronto, Canada
- Home energy efficiency firms based in Paris, France
- Home energy efficiency firms based in Barcelona, Spain
- Home energy efficiency firms based in London, United Kingdom
- Home energy efficiency firms based in New York, United States
- Home energy efficiency firms based in Australia
Company intelligence · public preview
Top 25 home energy efficiency firms based in the United Kingdom
RevenueBase records 813 matching company records for home energy efficiency firms based in the United Kingdom, with 15,812 tracked contacts and 4,714 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: October 14, 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 home energy efficiency firms 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 | 9,535 contacts → |
“Taking care of things.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Changeworkschangeworks.org.uk HQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 173 contacts → |
“Changeworks is a leading organisation dedicated to decarbonising Scotland’s homes and a just transition to net zero.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | TROOtroocost.com HQ: Doxford International Business Park, United KingdomReported employees: 51-200 | Doxford International Business Park, United Kingdom | 51-200 | Exact match | 112 contacts → |
“Managing business energy can be overwhelming.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Livgreenlivgreen.co.uk HQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 111 contacts → |
“We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Hometreehometree.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 109 contacts → |
“Hometree is a home energy services company on a mission to accelerate the transition to net zero.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | BOXTboxt.co.uk HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 96 contacts → |
“We started out as a trailblazing boiler installation company in 2017 – the first to offer everything effortlessly online.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Sustainable Building Services UK LTDsustainablebuildinguk.com HQ: Skelmersdale, United KingdomReported employees: 51-200 | Skelmersdale, United Kingdom | 51-200 | Exact match | 94 contacts → |
“Sustainable Building Services (UK) Ltd (SBS) is a purpose-led, multi-award-winning turnkey solutions provider specialising in retrofit energy efficiency and decarbonisation works…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | City Energy Networkcityenergy.co.uk HQ: Cardiff, United KingdomReported employees: 51-200 | Cardiff, United Kingdom | 51-200 | Exact match | 93 contacts → |
“At City Energy Network, we help households across the UK improve energy efficiency, cut bills, and reduce carbon emissions.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Laser Energylaserenergy.org.uk HQ: West Malling, United KingdomReported employees: 51-200 | West Malling, United Kingdom | 51-200 | Exact match | 88 contacts → |
“At LASER Energy, part of the Commercial Services Group Energy & Environment portfolio, a wholly-owned business unit of Kent County Council, we help public sector organisations…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Agilityecoagilityeco.co.uk HQ: Sutton, United KingdomReported employees: 51-200 | Sutton, United Kingdom | 51-200 | Exact match | 86 contacts → |
“At AgilityEco our vision is a warm, healthy home for everyone.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Next Energynextenergyuk.co.uk HQ: Knowsley, United KingdomReported employees: 51-200 | Knowsley, United Kingdom | 51-200 | Exact match | 75 contacts → |
“Established in 2016, we have grown to become one of the most reputable and reliable specialists within the renewable, heating, and insulation sectors in the United Kingdom.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 21 Degrees21degrees.com HQ: Nationwide, United KingdomReported employees: 201-500 | Nationwide, United Kingdom | 201-500 | Exact match | 67 contacts → |
“At 21 Degrees, we believe buildings should be designed for lower energy use, healthier spaces and better comfort.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | GEO Green Energy Optionsgeotogether.com HQ: Hardwick, United KingdomReported employees: 51-200 | Hardwick, United Kingdom | 51-200 | Exact match | 57 contacts → |
“Since 2006, we’ve been on a mission to make home energy tech that’s easy to use and understand, reduces energy costs, increases comfort and looks great in people’s homes.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | IZ Energy Services LTDizenergy.co.uk HQ: Barking, United KingdomReported employees: 51-200 | Barking, United Kingdom | 51-200 | Exact match | 54 contacts → |
“IZ Energy is pioneering a sustainable future.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Cotswold Energy Groupcotswold.energy HQ: Stonehouse, United KingdomReported employees: 51-200 | Stonehouse, United Kingdom | 51-200 | Exact match | 47 contacts → |
“Secure your greener future with renewable energy solutions!” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | The Improveasy Groupimproveasy.com HQ: Altrincham, United KingdomReported employees: 51-200 | Altrincham, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Energy solutions made easy.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Severn WYEsevernwye.org.uk HQ: Gloucester, United KingdomReported employees: 51-200 | Gloucester, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Severn Wye changes the way people, businesses and communities use energy, to meet the urgent need for warm, healthy homes now, and to create a low-carbon future driven by clean…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Sureserve Energy Services Northsureserve.co.uk HQ: Brighouse, United KingdomReported employees: 1,001-5,000 | Brighouse, United Kingdom | 1,001-5,000 | Exact match | 45 contacts → |
“Sureserve Energy Services North is a leading national installer of insulation, heating solutions and renewable technologies.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Green Home Systemsgreenhomesystems.co.uk HQ: Irvine, United KingdomReported employees: 51-200 | Irvine, United Kingdom | 51-200 | Exact match | 42 contacts → |
“At Green Home Systems, we deliver whole-house retrofit solutions that make homes warmer, more energy efficient, and lower cost to run.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Golden Globe Merchants LTDgoldenglobeltd.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 42 contacts → |
“At Golden Globe Merchants, we deliver high-performance, energy-efficient solutions designed to future-proof UK homes.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Effective Homeeffectivehome.co.uk HQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Effective Home was established in 2016 to help homeowners make their homes more energy efficient, save money and reduce their carbon footprint.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ECO Providersecoproviders.co.uk HQ: Clitheroe, United KingdomReported employees: 51-200 | Clitheroe, United Kingdom | 51-200 | Exact match | 41 contacts → |
“ECO Providers is a trusted leader in renewable and energy efficiency solutions, helping homeowners, businesses, and social housing organisations reduce energy costs, improve…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cenergistcenergist.com HQ: Washington, United KingdomReported employees: 201-500 | Washington, United Kingdom | 201-500 | Exact match | 40 contacts → |
“Cenergist is a specialist energy and water efficiency company in the UK and Europe.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Carbon Rewindcarbonrewind.com HQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 39 contacts → |
“At Carbon Rewind, we are optimistic about the energy future of the UK, and committed to doing our part to deliver the vision of a more sustainable future.” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Avonside Energyavonsideenergy.co.uk HQ: Rearsby, United KingdomReported employees: 201-500 | Rearsby, United Kingdom | 201-500 | Exact match | 37 contacts → |
“Avonside Energy: Your Partner in Sustainable Building Solutions At Avonside Energy, we are dedicated to delivering best-in-class services across: New Build Insulation…” Recorded description excerpt · October 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 813 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Home energy efficiency firms: dataset insights
October 14, 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
807 records in the displayed employee bands.
6 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 813 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: October 14, 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 ↗
Home energy efficiency firms by metro
Questions about this company list
What does Exact match mean for home energy efficiency firms?
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 home energy efficiency firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 813 matching company records, 15,812 tracked contacts and 4,714 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: October 14, 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
Home energy efficiency firms by geography
- Home energy efficiency firms based in Toronto, Canada
- Home energy efficiency firms based in Paris, France
- Home energy efficiency firms based in Barcelona, Spain
- Home energy efficiency firms based in London, United Kingdom
- Home energy efficiency firms based in New York, United States
- Home energy efficiency firms based in Australia
- Home energy efficiency firms based in Belgium
- Home energy efficiency firms based in Brazil
- Home energy efficiency firms based in Canada
- Home energy efficiency firms based in France
- Home energy efficiency firms based in Germany
- Home energy efficiency firms based in India
Cite this list
RevenueBase Data Team. Top 25 home energy efficiency firms based in the United Kingdom. Snapshot: October 14, 2026. https://revenuebase.ai/companies/home-energy-efficiency-firms/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
- Home energy efficiency firms based in Toronto, Canada
- Home energy efficiency firms based in Paris, France
- Home energy efficiency firms based in Barcelona, Spain
- Home energy efficiency firms based in London, United Kingdom
- Home energy efficiency firms based in New York, United States
- Home energy efficiency firms based in Australia