Company lists · Data refreshed September 2026
Top 25 Energy efficiency retrofit companies based in the United Kingdom
RevenueBase identified 605 company matches for energy efficiency retrofit companies associated with the United Kingdom as of September 2026 and tracks 4,728 professional contacts across them, including 1,734 with verified work emails. London is the largest hub.
This list covers company matches for energy efficiency retrofit companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 16, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest energy efficiency retrofit companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 206 contacts → | ||||
Exact match “Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 2 | 106 contacts → | ||||
Exact match “Managing business energy can be overwhelming.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 3 | 90 contacts → | ||||
Exact match “We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 4 | 82 contacts → | ||||
Exact match “Are you looking for a specialist retrofit decarbonisation & energy efficiency contractor?” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 5 | 68 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 · Sep 16, 2026 · View company records in RevenueBase | |||||
| 6 | 62 contacts → | ||||
Exact match “Cenergist is a specialist energy and water efficiency company in the UK and Europe.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 7 | 60 contacts → | ||||
Exact match “Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 8 | 60 contacts → | ||||
Exact match “Hello.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 9 | 60 contacts → | ||||
Exact match “We help heavy industry like steel become more energy efficient through the deployment of intelligent MV motor control via a zero-capex model: guaranteed net savings for the…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 10 | 58 contacts → | ||||
Exact match “Energy solutions made easy.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 11 | 58 contacts → | ||||
Exact match “We deliver retrofit and decarbonisation projects across London and the Thames Corridor, with the capability to operate nationally through the support of the Workplace Futures…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 12 | 58 contacts → | ||||
Exact match “Delivering Excellence in Housing Decarbonisation Broad Oak specialises in delivering high-quality decarbonisation and retrofit solutions.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 13 | 57 contacts → | ||||
Exact match “Primech is a specialist mechanical and electrical design and build contractor, with a strong focus on retrofit and upgrade projects across existing buildings and live environments.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 14 | 57 contacts → | ||||
Exact match “IZ Energy is pioneering a sustainable future.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 15 | 49 contacts → | ||||
Exact match “At Fusion For Business, we believe in the value of genuine human connection - people doing business with people they trust.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 16 | 48 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 · Sep 16, 2026 · View company records in RevenueBase | |||||
| 17 | 47 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 · Sep 16, 2026 · View company records in RevenueBase | |||||
| 18 | 45 contacts → | ||||
Exact match “Secure your greener future with renewable energy solutions!” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 19 | 42 contacts → | ||||
Exact match “Cotopaxi Energy is an independent engineering consultancy specialising in utility and carbon reduction.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 20 | 37 contacts → | ||||
Exact match “Evotech Technical Services delivers smarter, more sustainable buildings through innovative M&E solutions, expert engineering, and data-driven performance - helping clients reduce…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 21 | 36 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 · Sep 16, 2026 · View company records in RevenueBase | |||||
| 22 | 32 contacts → | ||||
Exact match “Cutting carbon and tackling fuel poverty are two of the biggest challenges of the century.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 23 | 30 contacts → | ||||
Exact match “ECO Surv provides intelligent compliance and workflow management solutions for the energy efficiency, renewable, and retrofit sector.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 24 | 29 contacts → | ||||
Exact match “Engineering energy efficiency that pays off.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 25 | 26 contacts → | ||||
Exact match “Welcome to Energys Group.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “energy efficiency retrofit companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 605 energy efficiency retrofit companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 1,734 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficiency retrofit companies based in the United Kingdom at a glance
As of Sep 16, 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 605 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “energy efficiency retrofit companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,734 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 16, 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 “energy efficiency retrofit companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficiency retrofit companies are there based in the United Kingdom?
RevenueBase identified 605 company matches for energy efficiency retrofit companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
E.On Control Solutions LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy efficiency retrofit companies?
London leads with 83 company records, followed by Manchester (20) and Birmingham (15).
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 1,734 professional contacts with verified work emails tracked across these 605 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 605 energy efficiency retrofit companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Energy efficiency retrofit companies by geography
- Energy efficiency retrofit companies based in Atlanta, United States
- Energy efficiency retrofit companies based in Denver, United States
- Energy efficiency retrofit companies based in Houston, United States
- Energy efficiency retrofit companies based in New York, United States
- Energy efficiency retrofit companies based in Australia
- Energy efficiency retrofit companies based in Austria
- Energy efficiency retrofit companies based in Belgium
- Energy efficiency retrofit companies based in Brazil
- Energy efficiency retrofit companies based in Canada
- Energy efficiency retrofit companies based in Chile
- Energy efficiency retrofit companies based in Colombia
- Energy efficiency retrofit companies based in Czechia
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy efficiency retrofit companies based in Atlanta, United States
- Energy efficiency retrofit companies based in Denver, United States
- Energy efficiency retrofit companies based in Houston, United States
- Energy efficiency retrofit companies based in New York, United States
- Energy efficiency retrofit companies based in Australia
- Energy efficiency retrofit companies based in Austria
Company intelligence · public preview
Top 25 energy efficiency retrofit companies based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 605 matching company records for energy efficiency retrofit companies based in the United Kingdom, with 4,728 tracked contacts and 1,734 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency retrofit companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  E.On Control Solutions LTDeon-controls.comHQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 206 contacts → |
“Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  TROOtroocost.comHQ: Doxford International Business Park, United KingdomReported employees: 51-200 | Doxford International Business Park, United Kingdom | 51-200 | Exact match | 106 contacts → |
“Managing business energy can be overwhelming.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Livgreenlivgreen.co.uk HQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 90 contacts → |
“We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Sustainable Building Services UK LTDsustainablebuildinguk.com HQ: Skelmersdale, United KingdomReported employees: 51-200 | Skelmersdale, United Kingdom | 51-200 | Exact match | 82 contacts → |
“Are you looking for a specialist retrofit decarbonisation & energy efficiency contractor?” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Next Energynextenergyuk.co.uk HQ: Knowsley, United KingdomReported employees: 51-200 | Knowsley, United Kingdom | 51-200 | Exact match | 68 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Cenergistcenergist.comHQ: Washington, United KingdomReported employees: 201-500 | Washington, United Kingdom | 201-500 | Exact match | 62 contacts → |
“Cenergist is a specialist energy and water efficiency company in the UK and Europe.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Matrix Control Solutions LTDmatrixsee.co.ukHQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 60 contacts → |
“Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Scis Groupscisltd.co.uk HQ: Fareham, United KingdomReported employees: 51-200 | Fareham, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Hello.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Energy Driveenergydrivesystems.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 60 contacts → |
“We help heavy industry like steel become more energy efficient through the deployment of intelligent MV motor control via a zero-capex model: guaranteed net savings for the…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  The Improveasy Groupimproveasy.comHQ: Altrincham, United KingdomReported employees: 51-200 | Altrincham, United Kingdom | 51-200 | Exact match | 58 contacts → |
“Energy solutions made easy.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  AMBITambitmoat.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 58 contacts → |
“We deliver retrofit and decarbonisation projects across London and the Thames Corridor, with the capability to operate nationally through the support of the Workplace Futures…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Broad OAK Groupbroadoakgroup.com HQ: Kingsley Moor, United KingdomReported employees: 201-500 | Kingsley Moor, United Kingdom | 201-500 | Exact match | 58 contacts → |
“Delivering Excellence in Housing Decarbonisation Broad Oak specialises in delivering high-quality decarbonisation and retrofit solutions.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Primech Building Services LTDprimechservices.com HQ: Gillingham, United KingdomReported employees: 51-200 | Gillingham, United Kingdom | 51-200 | Exact match | 57 contacts → |
“Primech is a specialist mechanical and electrical design and build contractor, with a strong focus on retrofit and upgrade projects across existing buildings and live environments.” Recorded description excerpt · September 16, 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 | 57 contacts → |
“IZ Energy is pioneering a sustainable future.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Fusion For Businessfusionforbusiness.co.ukHQ: Durham, United KingdomReported employees: 51-200 | Durham, United Kingdom | 51-200 | Exact match | 49 contacts → |
“At Fusion For Business, we believe in the value of genuine human connection - people doing business with people they trust.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Effective Homeeffectivehome.co.ukHQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 48 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Green Home Systemsgreenhomesystems.co.uk HQ: Irvine, United KingdomReported employees: 51-200 | Irvine, United Kingdom | 51-200 | Exact match | 47 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cotswold Energy Groupcotswold.energyHQ: Stonehouse, United KingdomReported employees: 51-200 | Stonehouse, United Kingdom | 51-200 | Exact match | 45 contacts → |
“Secure your greener future with renewable energy solutions!” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Cotopaxi LTDcotopaxienergy.comHQ: White Moss Business Park, United KingdomReported employees: 11-50 | White Moss Business Park, United Kingdom | 11-50 | Exact match | 42 contacts → |
“Cotopaxi Energy is an independent engineering consultancy specialising in utility and carbon reduction.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Evotech Technical Servicesevotech.co.ukHQ: Elland, United KingdomReported employees: 51-200 | Elland, United Kingdom | 51-200 | Exact match | 37 contacts → |
“Evotech Technical Services delivers smarter, more sustainable buildings through innovative M&E solutions, expert engineering, and data-driven performance - helping clients reduce…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Carbon Rewindcarbonrewind.com HQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 36 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | The Retrofit Academyretrofitacademy.org HQ: Stafford, United KingdomReported employees: 11-50 | Stafford, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Cutting carbon and tackling fuel poverty are two of the biggest challenges of the century.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | ECO Surveco-surv.co.uk HQ: Chorley, United KingdomReported employees: 11-50 | Chorley, United Kingdom | 11-50 | Exact match | 30 contacts → |
“ECO Surv provides intelligent compliance and workflow management solutions for the energy efficiency, renewable, and retrofit sector.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Emissisemissis.comHQ: Stokesley, United KingdomReported employees: 51-200 | Stokesley, United Kingdom | 51-200 | Exact match | 29 contacts → |
“Engineering energy efficiency that pays off.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Energys Groupenergysgroup.com HQ: Billingshurst, United KingdomReported employees: 11-50 | Billingshurst, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Welcome to Energys Group.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 605 company matches
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Energy efficiency retrofit companies: dataset insights
September 16, 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
599 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 605 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 16, 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 energy efficiency retrofit companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy efficiency retrofit companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 605 matching company records, 4,728 tracked contacts and 1,734 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy efficiency retrofit companies by geography
- Energy efficiency retrofit companies based in Atlanta, United States
- Energy efficiency retrofit companies based in Denver, United States
- Energy efficiency retrofit companies based in Houston, United States
- Energy efficiency retrofit companies based in New York, United States
- Energy efficiency retrofit companies based in Australia
- Energy efficiency retrofit companies based in Austria
- Energy efficiency retrofit companies based in Belgium
- Energy efficiency retrofit companies based in Brazil
- Energy efficiency retrofit companies based in Canada
- Energy efficiency retrofit companies based in Chile
- Energy efficiency retrofit companies based in Colombia
- Energy efficiency retrofit companies based in Czechia
Cite this list
RevenueBase Data Team. Top 25 energy efficiency retrofit companies based in the United Kingdom. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-efficiency-retrofit-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy efficiency retrofit companies based in Atlanta, United States
- Energy efficiency retrofit companies based in Denver, United States
- Energy efficiency retrofit companies based in Houston, United States
- Energy efficiency retrofit companies based in New York, United States
- Energy efficiency retrofit companies based in Australia
- Energy efficiency retrofit companies based in Austria
Company intelligence · public preview
Top 25 energy efficiency retrofit companies based in the United Kingdom
RevenueBase records 605 matching company records for energy efficiency retrofit companies based in the United Kingdom, with 4,728 tracked contacts and 1,734 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency retrofit companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | E.On Control Solutions LTDeon-controls.com HQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 206 contacts → |
“Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | TROOtroocost.com HQ: Doxford International Business Park, United KingdomReported employees: 51-200 | Doxford International Business Park, United Kingdom | 51-200 | Exact match | 106 contacts → |
“Managing business energy can be overwhelming.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Livgreenlivgreen.co.uk HQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 90 contacts → |
“We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Sustainable Building Services UK LTDsustainablebuildinguk.com HQ: Skelmersdale, United KingdomReported employees: 51-200 | Skelmersdale, United Kingdom | 51-200 | Exact match | 82 contacts → |
“Are you looking for a specialist retrofit decarbonisation & energy efficiency contractor?” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Next Energynextenergyuk.co.uk HQ: Knowsley, United KingdomReported employees: 51-200 | Knowsley, United Kingdom | 51-200 | Exact match | 68 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Cenergistcenergist.com HQ: Washington, United KingdomReported employees: 201-500 | Washington, United Kingdom | 201-500 | Exact match | 62 contacts → |
“Cenergist is a specialist energy and water efficiency company in the UK and Europe.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Matrix Control Solutions LTDmatrixsee.co.uk HQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 60 contacts → |
“Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Scis Groupscisltd.co.uk HQ: Fareham, United KingdomReported employees: 51-200 | Fareham, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Hello.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Energy Driveenergydrivesystems.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 60 contacts → |
“We help heavy industry like steel become more energy efficient through the deployment of intelligent MV motor control via a zero-capex model: guaranteed net savings for the…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | The Improveasy Groupimproveasy.com HQ: Altrincham, United KingdomReported employees: 51-200 | Altrincham, United Kingdom | 51-200 | Exact match | 58 contacts → |
“Energy solutions made easy.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | AMBITambitmoat.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 58 contacts → |
“We deliver retrofit and decarbonisation projects across London and the Thames Corridor, with the capability to operate nationally through the support of the Workplace Futures…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Broad OAK Groupbroadoakgroup.com HQ: Kingsley Moor, United KingdomReported employees: 201-500 | Kingsley Moor, United Kingdom | 201-500 | Exact match | 58 contacts → |
“Delivering Excellence in Housing Decarbonisation Broad Oak specialises in delivering high-quality decarbonisation and retrofit solutions.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Primech Building Services LTDprimechservices.com HQ: Gillingham, United KingdomReported employees: 51-200 | Gillingham, United Kingdom | 51-200 | Exact match | 57 contacts → |
“Primech is a specialist mechanical and electrical design and build contractor, with a strong focus on retrofit and upgrade projects across existing buildings and live environments.” Recorded description excerpt · September 16, 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 | 57 contacts → |
“IZ Energy is pioneering a sustainable future.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Fusion For Businessfusionforbusiness.co.uk HQ: Durham, United KingdomReported employees: 51-200 | Durham, United Kingdom | 51-200 | Exact match | 49 contacts → |
“At Fusion For Business, we believe in the value of genuine human connection - people doing business with people they trust.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Effective Homeeffectivehome.co.uk HQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 48 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Green Home Systemsgreenhomesystems.co.uk HQ: Irvine, United KingdomReported employees: 51-200 | Irvine, United Kingdom | 51-200 | Exact match | 47 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cotswold Energy Groupcotswold.energy HQ: Stonehouse, United KingdomReported employees: 51-200 | Stonehouse, United Kingdom | 51-200 | Exact match | 45 contacts → |
“Secure your greener future with renewable energy solutions!” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Cotopaxi LTDcotopaxienergy.com HQ: White Moss Business Park, United KingdomReported employees: 11-50 | White Moss Business Park, United Kingdom | 11-50 | Exact match | 42 contacts → |
“Cotopaxi Energy is an independent engineering consultancy specialising in utility and carbon reduction.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Evotech Technical Servicesevotech.co.uk HQ: Elland, United KingdomReported employees: 51-200 | Elland, United Kingdom | 51-200 | Exact match | 37 contacts → |
“Evotech Technical Services delivers smarter, more sustainable buildings through innovative M&E solutions, expert engineering, and data-driven performance - helping clients reduce…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Carbon Rewindcarbonrewind.com HQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 36 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | The Retrofit Academyretrofitacademy.org HQ: Stafford, United KingdomReported employees: 11-50 | Stafford, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Cutting carbon and tackling fuel poverty are two of the biggest challenges of the century.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | ECO Surveco-surv.co.uk HQ: Chorley, United KingdomReported employees: 11-50 | Chorley, United Kingdom | 11-50 | Exact match | 30 contacts → |
“ECO Surv provides intelligent compliance and workflow management solutions for the energy efficiency, renewable, and retrofit sector.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Emissisemissis.com HQ: Stokesley, United KingdomReported employees: 51-200 | Stokesley, United Kingdom | 51-200 | Exact match | 29 contacts → |
“Engineering energy efficiency that pays off.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Energys Groupenergysgroup.com HQ: Billingshurst, United KingdomReported employees: 11-50 | Billingshurst, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Welcome to Energys Group.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 605 company matches
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Energy efficiency retrofit companies: dataset insights
September 16, 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
599 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 605 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 16, 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 energy efficiency retrofit companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy efficiency retrofit companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 605 matching company records, 4,728 tracked contacts and 1,734 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy efficiency retrofit companies by geography
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Cite this list
RevenueBase Data Team. Top 25 energy efficiency retrofit companies based in the United Kingdom. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-efficiency-retrofit-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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