Company lists · Data refreshed September 2026
Top 25 Energy efficiency consultancies based in London, United Kingdom
RevenueBase identified 166 company matches for energy efficiency consultancies associated with London, United Kingdom as of September 2026 and tracks 1,831 professional contacts across them, including 919 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers company matches for energy efficiency consultancies associated with London, 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 28, 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 consultancies based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 323 contacts → | ||||
Exact match “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 171 contacts → | ||||
Exact match “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 115 contacts → | ||||
Exact match “If you are operating a heat network, or planning a new heat network, then FairHeat can ensure that you get maximum efficiency from your heat networks while reducing operating and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 115 contacts → | ||||
Exact match “At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 115 contacts → | ||||
Exact match “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 97 contacts → | ||||
Exact match “Best.Energy is a UK based company specialising in the measurement, control and reduction of energy consumption and costs within the industrial, commercial and public sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 89 contacts → | ||||
Exact match “Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 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 28, 2026 · View company records in RevenueBase | |||||
| 9 | 50 contacts → | ||||
Exact match “Advantage Utilities mission is to provide customers with a “One-Stop-Shop” for all their energy needs – with Market Leading Data/Expertise and Unrivalled “Drop Everything”…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 35 contacts → | ||||
Exact match “Founded in 2010, Syzygy is the leading specialist low carbon technology consultancy for the real estate sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 34 contacts → | ||||
Exact match “Envision is a specialist sustainability, energy and net zero design consultancy offering strategic and technical advice within the built environment and to businesses wishing to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 25 contacts → | ||||
Exact match “Building Service and Low Carbon consultancy advice within the Built Environment.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 18 contacts → | ||||
Exact match “A MEP Design and Energy + Sustainability Consultancy, we've been “Engineering Exceptional Environment Solutions for Buildings” every day since 1973, working on buildings across…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “Ensphere is an independent, commercially‑astute consultancy delivering cutting‑edge ESG, sustainability and low‑carbon advice.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 12 contacts → | ||||
Exact match “INNOVATIVE & COMPREHENSIVE MEES SOLUTIONS MEES Solutions was founded by three industry experts to provide specialist advice and modelling for all aspects of the Minimum Energy…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 12 contacts → | ||||
Exact match “We design mechanical and electrical systems, advise on all aspects of energy, carbon reduction and building physics.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 11 contacts → | ||||
Exact match “We often talk to people in large businesses who are not getting the support they need to manage their energy costs well.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 11 contacts → | ||||
Exact match “Energy procurement can be complicated especially for large property portfolios.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 11 contacts → | ||||
Exact match “Energy optimisation analytics that improve energy efficiency, optimise assets and prevent faults” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “Zerogram is on a mission to make net zero not just possible, but practical.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 10 contacts → | ||||
Exact match “We offer a world leading Energy and Engineering support to our clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 9 contacts → | ||||
Exact match “Starting up in 2009, Braithwaite Energy's core business comes from the provision of Energy Performance Certificates (EPCs) for commercial property owners and landlords.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “Welcome to our world of green certifications!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “LV and HV Electrical Consultancy and Engineering Services to Renewable Energy Markets and Industrial and Commercial Sectors” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 25 | 8 contacts → | ||||
Exact match “LightingLives Consultants Limited is a premier energy consultant with a team of experts who give advice to business customers on their utilities accounts.” Recorded in the RevenueBase company graph · Sep 28, 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 consultancies”. 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 166 energy efficiency consultancies based in London, United Kingdom
See the full list, filter by size, metro and specialty, and access 919 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficiency consultancies based in London, United Kingdom at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 166 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 London, United Kingdom whose business descriptions match “energy efficiency consultancies” 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 919 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 28, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Energy efficiency consultancies by metro in the United Kingdom
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 consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficiency consultancies are there based in London, United Kingdom?
RevenueBase identified 166 company matches for energy efficiency consultancies associated with London, 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?
Atelier TEN tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United Kingdom has the most energy efficiency consultancies?
London leads the United Kingdom with 166 company records, followed by Manchester (37) and Birmingham (23).
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 919 professional contacts with verified work emails tracked across these 166 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 166 energy efficiency consultancies based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Energy efficiency consultancies by geography
- Energy efficiency consultancies based in Melbourne, Australia
- Energy efficiency consultancies based in Sydney, Australia
- Energy efficiency consultancies based in Rio De Janeiro, Brazil
- Energy efficiency consultancies based in Toronto, Canada
- Energy efficiency consultancies based in Lyon, France
- Energy efficiency consultancies based in Paris, France
- Energy efficiency consultancies based in Toulouse, France
- Energy efficiency consultancies based in Berlin, Germany
- Energy efficiency consultancies based in Hamburg, Germany
- Energy efficiency consultancies based in Milan, Italy
- Energy efficiency consultancies based in Barcelona, Spain
- Energy efficiency consultancies based in Madrid, Spain
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 consultancies based in Melbourne, Australia
- Energy efficiency consultancies based in Sydney, Australia
- Energy efficiency consultancies based in Rio De Janeiro, Brazil
- Energy efficiency consultancies based in Toronto, Canada
- Energy efficiency consultancies based in Lyon, France
- Energy efficiency consultancies based in Paris, France
Company intelligence · public preview
Top 25 energy efficiency consultancies based in London, 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 166 matching company records for energy efficiency consultancies based in London, United Kingdom, with 1,831 tracked contacts and 919 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 28, 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 consultancies based in London, 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 |  Atelier TENatelierten.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 323 contacts → |
“As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  CFP Energycfp.energyHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 171 contacts → |
“CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Fairheatfairheat.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 115 contacts → |
“If you are operating a heat network, or planning a new heat network, then FairHeat can ensure that you get maximum efficiency from your heat networks while reducing operating and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  ZTPztpuk.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 115 contacts → |
“At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Longevity Partnerslongevity-partners.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 115 contacts → |
“Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  best.energybest.energyHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 97 contacts → |
“Best.Energy is a UK based company specialising in the measurement, control and reduction of energy consumption and costs within the industrial, commercial and public sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Sustainable Advantagesustainable-advantage.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 89 contacts → |
“Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Advantage Utilities LTDadvantageutilities.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 50 contacts → |
“Advantage Utilities mission is to provide customers with a “One-Stop-Shop” for all their energy needs – with Market Leading Data/Expertise and Unrivalled “Drop Everything”…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Syzygysyzygyconsulting.euHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 35 contacts → |
“Founded in 2010, Syzygy is the leading specialist low carbon technology consultancy for the real estate sector.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Envisionenvisioneco.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 34 contacts → |
“Envision is a specialist sustainability, energy and net zero design consultancy offering strategic and technical advice within the built environment and to businesses wishing to…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | RCDCruane-cdc.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 25 contacts → |
“Building Service and Low Carbon consultancy advice within the Built Environment.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Mecservemecserve.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 18 contacts → |
“A MEP Design and Energy + Sustainability Consultancy, we've been “Engineering Exceptional Environment Solutions for Buildings” every day since 1973, working on buildings across…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Ensphere Group LTDenspheregroup.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Ensphere is an independent, commercially‑astute consultancy delivering cutting‑edge ESG, sustainability and low‑carbon advice.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Mees Solutionsmeessolutions.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“INNOVATIVE & COMPREHENSIVE MEES SOLUTIONS MEES Solutions was founded by three industry experts to provide specialist advice and modelling for all aspects of the Minimum Energy…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  BTP Consultantsbtpconsultancy.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“We design mechanical and electrical systems, advise on all aspects of energy, carbon reduction and building physics.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Flow&ebb LTDflowandebb.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“We often talk to people in large businesses who are not getting the support they need to manage their energy costs well.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Energy Portfolioenergyportfolio.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Energy procurement can be complicated especially for large property portfolios.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Orxagrid LTDorxagrid.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Energy optimisation analytics that improve energy efficiency, optimise assets and prevent faults” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Zerogramzerogram.coHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Zerogram is on a mission to make net zero not just possible, but practical.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Twenty ONE Engineeringtwentyoneengineering.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“We offer a world leading Energy and Engineering support to our clients.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Braithwaite Energybraithwaiteenergy.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Starting up in 2009, Braithwaite Energy's core business comes from the provision of Energy Performance Certificates (EPCs) for commercial property owners and landlords.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Forstå Projects LTDforstaprojects.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Welcome to our world of green certifications!” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Sehv Services Limitedsehvservices.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 8 contacts → |
“LV and HV Electrical Consultancy and Engineering Services to Renewable Energy Markets and Industrial and Commercial Sectors” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Lightinglives Consultants LTDlightinglivesconsultants.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 8 contacts → |
“LightingLives Consultants Limited is a premier energy consultant with a team of experts who give advice to business customers on their utilities accounts.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 166 company matches
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Energy efficiency consultancies: dataset insights
September 28, 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
164 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 166 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 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Energy efficiency consultancies by metro in the United Kingdom
Questions about this company list
What does Exact match mean for energy efficiency consultancies?
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 consultancies did RevenueBase find based in London, United Kingdom?
The saved snapshot records 166 matching company records, 1,831 tracked contacts and 919 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 28, 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 consultancies by geography
- Energy efficiency consultancies based in Melbourne, Australia
- Energy efficiency consultancies based in Sydney, Australia
- Energy efficiency consultancies based in Rio De Janeiro, Brazil
- Energy efficiency consultancies based in Toronto, Canada
- Energy efficiency consultancies based in Lyon, France
- Energy efficiency consultancies based in Paris, France
- Energy efficiency consultancies based in Toulouse, France
- Energy efficiency consultancies based in Berlin, Germany
- Energy efficiency consultancies based in Hamburg, Germany
- Energy efficiency consultancies based in Milan, Italy
- Energy efficiency consultancies based in Barcelona, Spain
- Energy efficiency consultancies based in Madrid, Spain
Cite this list
RevenueBase Data Team. Top 25 energy efficiency consultancies based in London, United Kingdom. Snapshot: September 28, 2026. https://revenuebase.ai/companies/energy-efficiency-consultancies/united-kingdom/london.
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 consultancies based in Melbourne, Australia
- Energy efficiency consultancies based in Sydney, Australia
- Energy efficiency consultancies based in Rio De Janeiro, Brazil
- Energy efficiency consultancies based in Toronto, Canada
- Energy efficiency consultancies based in Lyon, France
- Energy efficiency consultancies based in Paris, France
Company intelligence · public preview
Top 25 energy efficiency consultancies based in London, United Kingdom
RevenueBase records 166 matching company records for energy efficiency consultancies based in London, United Kingdom, with 1,831 tracked contacts and 919 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 28, 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 consultancies based in London, 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 | Atelier TENatelierten.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 323 contacts → |
“As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | CFP Energycfp.energy HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 171 contacts → |
“CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Fairheatfairheat.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 115 contacts → |
“If you are operating a heat network, or planning a new heat network, then FairHeat can ensure that you get maximum efficiency from your heat networks while reducing operating and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ZTPztpuk.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 115 contacts → |
“At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Longevity Partnerslongevity-partners.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 115 contacts → |
“Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | best.energybest.energy HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 97 contacts → |
“Best.Energy is a UK based company specialising in the measurement, control and reduction of energy consumption and costs within the industrial, commercial and public sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Sustainable Advantagesustainable-advantage.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 89 contacts → |
“Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Advantage Utilities LTDadvantageutilities.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 50 contacts → |
“Advantage Utilities mission is to provide customers with a “One-Stop-Shop” for all their energy needs – with Market Leading Data/Expertise and Unrivalled “Drop Everything”…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Syzygysyzygyconsulting.eu HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 35 contacts → |
“Founded in 2010, Syzygy is the leading specialist low carbon technology consultancy for the real estate sector.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Envisionenvisioneco.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 34 contacts → |
“Envision is a specialist sustainability, energy and net zero design consultancy offering strategic and technical advice within the built environment and to businesses wishing to…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | RCDCruane-cdc.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 25 contacts → |
“Building Service and Low Carbon consultancy advice within the Built Environment.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Mecservemecserve.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 18 contacts → |
“A MEP Design and Energy + Sustainability Consultancy, we've been “Engineering Exceptional Environment Solutions for Buildings” every day since 1973, working on buildings across…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ensphere Group LTDenspheregroup.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Ensphere is an independent, commercially‑astute consultancy delivering cutting‑edge ESG, sustainability and low‑carbon advice.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Mees Solutionsmeessolutions.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“INNOVATIVE & COMPREHENSIVE MEES SOLUTIONS MEES Solutions was founded by three industry experts to provide specialist advice and modelling for all aspects of the Minimum Energy…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | BTP Consultantsbtpconsultancy.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“We design mechanical and electrical systems, advise on all aspects of energy, carbon reduction and building physics.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Flow&ebb LTDflowandebb.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“We often talk to people in large businesses who are not getting the support they need to manage their energy costs well.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Energy Portfolioenergyportfolio.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Energy procurement can be complicated especially for large property portfolios.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Orxagrid LTDorxagrid.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Energy optimisation analytics that improve energy efficiency, optimise assets and prevent faults” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Zerogramzerogram.co HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Zerogram is on a mission to make net zero not just possible, but practical.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Twenty ONE Engineeringtwentyoneengineering.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“We offer a world leading Energy and Engineering support to our clients.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Braithwaite Energybraithwaiteenergy.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Starting up in 2009, Braithwaite Energy's core business comes from the provision of Energy Performance Certificates (EPCs) for commercial property owners and landlords.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Forstå Projects LTDforstaprojects.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Welcome to our world of green certifications!” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Sehv Services Limitedsehvservices.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 8 contacts → |
“LV and HV Electrical Consultancy and Engineering Services to Renewable Energy Markets and Industrial and Commercial Sectors” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Lightinglives Consultants LTDlightinglivesconsultants.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 8 contacts → |
“LightingLives Consultants Limited is a premier energy consultant with a team of experts who give advice to business customers on their utilities accounts.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 166 company matches
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Energy efficiency consultancies: dataset insights
September 28, 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
164 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 166 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 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Energy efficiency consultancies by metro in the United Kingdom
Questions about this company list
What does Exact match mean for energy efficiency consultancies?
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 consultancies did RevenueBase find based in London, United Kingdom?
The saved snapshot records 166 matching company records, 1,831 tracked contacts and 919 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 28, 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 consultancies by geography
- Energy efficiency consultancies based in Melbourne, Australia
- Energy efficiency consultancies based in Sydney, Australia
- Energy efficiency consultancies based in Rio De Janeiro, Brazil
- Energy efficiency consultancies based in Toronto, Canada
- Energy efficiency consultancies based in Lyon, France
- Energy efficiency consultancies based in Paris, France
- Energy efficiency consultancies based in Toulouse, France
- Energy efficiency consultancies based in Berlin, Germany
- Energy efficiency consultancies based in Hamburg, Germany
- Energy efficiency consultancies based in Milan, Italy
- Energy efficiency consultancies based in Barcelona, Spain
- Energy efficiency consultancies based in Madrid, Spain
Cite this list
RevenueBase Data Team. Top 25 energy efficiency consultancies based in London, United Kingdom. Snapshot: September 28, 2026. https://revenuebase.ai/companies/energy-efficiency-consultancies/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Energy efficiency consultancies based in Melbourne, Australia
- Energy efficiency consultancies based in Sydney, Australia
- Energy efficiency consultancies based in Rio De Janeiro, Brazil
- Energy efficiency consultancies based in Toronto, Canada
- Energy efficiency consultancies based in Lyon, France
- Energy efficiency consultancies based in Paris, France