Company lists · Data refreshed September 2026
Top 25 Sustainable energy consulting firms based in London, United Kingdom
RevenueBase identified 540 company matches for sustainable energy consulting firms associated with London, United Kingdom as of September 2026 and tracks 20,686 professional contacts across them, including 10,390 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers company matches for sustainable energy consulting firms 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 21, 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 sustainable energy consulting firms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,119 contacts → | ||||
Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 3,848 contacts → | ||||
Exact match “SLR is a committed partner in our clients’ sustainability journeys.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 1,007 contacts → | ||||
Exact match “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 670 contacts → | ||||
Exact match “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 621 contacts → | ||||
Exact match “For over 26 years, our consultants have been supporting and guiding our clients to achieve low-carbon climate-resilient development.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 401 contacts → | ||||
Exact match “Genesis is a market-leading advisory company focused on providing high-value technical and advisory services for the energy industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 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 21, 2026 · View company records in RevenueBase | |||||
| 8 | 185 contacts → | ||||
Exact match “The Renewable Energy Consultants.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 175 contacts → | ||||
Exact match “Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 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 21, 2026 · View company records in RevenueBase | |||||
| 11 | 158 contacts → | ||||
Exact match “Acre is the global market leader for sustainability executive search and recruitment services, exclusively focused on integrating sustainability and catalysing positive change…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 143 contacts → | ||||
Exact match “JD Ross Energy is an international talent consultancy that solely focuses on the Renewable Energy sector, connecting the best talent across the globe with companies that are…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 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 21, 2026 · View company records in RevenueBase | |||||
| 14 | 115 contacts → | ||||
Exact match “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 93 contacts → | ||||
Exact match “Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 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 21, 2026 · View company records in RevenueBase | |||||
| 17 | 88 contacts → | ||||
Exact match “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 84 contacts → | ||||
Exact match “We are a multidisciplinary group with backgrounds in engineering, architecture and environmental science, working as consultants for buildings, large developments and masterplans…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 69 contacts → | ||||
Exact match “EcoAct is now SE Advisory Services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 63 contacts → | ||||
Exact match “Pacific Green is becoming a world leader at providing sustainable cleantech solutions to help solve climate warming, green energy and resource scarcity challenges.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 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 21, 2026 · View company records in RevenueBase | |||||
| 22 | 48 contacts → | ||||
Exact match “Energy Industry Experts We are subject matter experts in the energy sector.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 47 contacts → | ||||
Exact match “AVA Energy – Powering Energy Talent.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 47 contacts → | ||||
Exact match “We are a team of sustainability engineers passionate about creating buildings with a positive impact on the environment and the community.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 45 contacts → | ||||
Exact match “In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.” Recorded in the RevenueBase company graph · Sep 21, 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 “sustainable energy consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 540 sustainable energy consulting firms based in London, United Kingdom
See the full list, filter by size, metro and specialty, and access 10,390 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Sustainable energy consulting firms based in London, United Kingdom at a glance
As of Sep 21, 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 540 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 “sustainable energy consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 10,390 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 21, 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.
Sustainable energy consulting firms 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 “sustainable energy consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many sustainable energy consulting firms are there based in London, United Kingdom?
RevenueBase identified 540 company matches for sustainable energy consulting firms 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?
ERM 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 sustainable energy consulting firms?
London leads the United Kingdom with 540 company records, followed by Manchester (48) and Edinburgh (41).
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 10,390 professional contacts with verified work emails tracked across these 540 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 540 sustainable energy consulting firms based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Sustainable energy consulting firms by geography
- Sustainable energy consulting firms based in Adelaide, Australia
- Sustainable energy consulting firms based in Brisbane, Australia
- Sustainable energy consulting firms based in Melbourne, Australia
- Sustainable energy consulting firms based in Perth, Australia
- Sustainable energy consulting firms based in Sydney, Australia
- Sustainable energy consulting firms based in Belo Horizonte, Brazil
- Sustainable energy consulting firms based in Curitiba, Brazil
- Sustainable energy consulting firms based in Fortaleza, Brazil
- Sustainable energy consulting firms based in Porto Alegre, Brazil
- Sustainable energy consulting firms based in Rio De Janeiro, Brazil
- Sustainable energy consulting firms based in Salvador, Brazil
- Sustainable energy consulting firms based in Sao Paulo, Brazil
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
- Sustainable energy consulting firms based in Adelaide, Australia
- Sustainable energy consulting firms based in Brisbane, Australia
- Sustainable energy consulting firms based in Melbourne, Australia
- Sustainable energy consulting firms based in Perth, Australia
- Sustainable energy consulting firms based in Sydney, Australia
- Sustainable energy consulting firms based in Belo Horizonte, Brazil
Company intelligence · public preview
Top 25 sustainable energy consulting firms 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 540 matching company records for sustainable energy consulting firms based in London, United Kingdom, with 20,686 tracked contacts and 10,390 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 21, 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 sustainable energy consulting firms 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 |  ERMerm.comHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 9,119 contacts → |
“Sustainability is our business.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  SLR Consultingslrconsulting.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,848 contacts → |
“SLR is a committed partner in our clients’ sustainability journeys.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Penspenpenspen.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,007 contacts → |
“Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ricardo PLCricardo.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 670 contacts → |
“Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  E COecoltdgroup.comHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 621 contacts → |
“For over 26 years, our consultants have been supporting and guiding our clients to achieve low-carbon climate-resilient development.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Genesisgenesisenergies.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 401 contacts → |
“Genesis is a market-leading advisory company focused on providing high-value technical and advisory services for the energy industry.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  OWCowcltd.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 185 contacts → |
“The Renewable Energy Consultants.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Wood Thilstedwoodthilsted.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 175 contacts → |
“Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  ACREacre.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 158 contacts → |
“Acre is the global market leader for sustainability executive search and recruitment services, exclusively focused on integrating sustainability and catalysing positive change…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  JD Ross Energyjdrossenergy.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 143 contacts → |
“JD Ross Energy is an international talent consultancy that solely focuses on the Renewable Energy sector, connecting the best talent across the globe with companies that are…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Greengage Environmental LTDgreengage-env.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 93 contacts → |
“Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Alfa Energy An Edison Energy Companyalfaenergygroup.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 88 contacts → |
“Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Xco2xco2.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 84 contacts → |
“We are a multidisciplinary group with backgrounds in engineering, architecture and environmental science, working as consultants for buildings, large developments and masterplans…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Ecoact Part Of Schneider Electricseadvisoryservices.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 69 contacts → |
“EcoAct is now SE Advisory Services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Pacific Greenpacificgreen.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 63 contacts → |
“Pacific Green is becoming a world leader at providing sustainable cleantech solutions to help solve climate warming, green energy and resource scarcity challenges.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Engage Consultingengage-consulting.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 48 contacts → |
“Energy Industry Experts We are subject matter experts in the energy sector.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  AVA Energyavaenergy.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“AVA Energy – Powering Energy Talent.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  ETUDEetude.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“We are a team of sustainability engineers passionate about creating buildings with a positive impact on the environment and the community.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  GAS Strategiesgasstrategies.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 45 contacts → |
“In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 540 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Sustainable energy consulting firms: dataset insights
September 21, 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
537 records in the displayed employee bands.
3 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 540 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 21, 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 ↗
Sustainable energy consulting firms by metro in the United Kingdom
Questions about this company list
What does Exact match mean for sustainable energy consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many sustainable energy consulting firms did RevenueBase find based in London, United Kingdom?
The saved snapshot records 540 matching company records, 20,686 tracked contacts and 10,390 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 21, 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
Sustainable energy consulting firms by geography
- Sustainable energy consulting firms based in Adelaide, Australia
- Sustainable energy consulting firms based in Brisbane, Australia
- Sustainable energy consulting firms based in Melbourne, Australia
- Sustainable energy consulting firms based in Perth, Australia
- Sustainable energy consulting firms based in Sydney, Australia
- Sustainable energy consulting firms based in Belo Horizonte, Brazil
- Sustainable energy consulting firms based in Curitiba, Brazil
- Sustainable energy consulting firms based in Fortaleza, Brazil
- Sustainable energy consulting firms based in Porto Alegre, Brazil
- Sustainable energy consulting firms based in Rio De Janeiro, Brazil
- Sustainable energy consulting firms based in Salvador, Brazil
- Sustainable energy consulting firms based in Sao Paulo, Brazil
Cite this list
RevenueBase Data Team. Top 25 sustainable energy consulting firms based in London, United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/sustainable-energy-consulting-firms/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
- Sustainable energy consulting firms based in Adelaide, Australia
- Sustainable energy consulting firms based in Brisbane, Australia
- Sustainable energy consulting firms based in Melbourne, Australia
- Sustainable energy consulting firms based in Perth, Australia
- Sustainable energy consulting firms based in Sydney, Australia
- Sustainable energy consulting firms based in Belo Horizonte, Brazil
Company intelligence · public preview
Top 25 sustainable energy consulting firms based in London, United Kingdom
RevenueBase records 540 matching company records for sustainable energy consulting firms based in London, United Kingdom, with 20,686 tracked contacts and 10,390 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 21, 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 sustainable energy consulting firms 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 | ERMerm.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 9,119 contacts → |
“Sustainability is our business.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | SLR Consultingslrconsulting.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,848 contacts → |
“SLR is a committed partner in our clients’ sustainability journeys.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Penspenpenspen.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,007 contacts → |
“Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ricardo PLCricardo.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 670 contacts → |
“Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | E COecoltdgroup.com HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 621 contacts → |
“For over 26 years, our consultants have been supporting and guiding our clients to achieve low-carbon climate-resilient development.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Genesisgenesisenergies.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 401 contacts → |
“Genesis is a market-leading advisory company focused on providing high-value technical and advisory services for the energy industry.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | OWCowcltd.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 185 contacts → |
“The Renewable Energy Consultants.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Wood Thilstedwoodthilsted.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 175 contacts → |
“Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | ACREacre.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 158 contacts → |
“Acre is the global market leader for sustainability executive search and recruitment services, exclusively focused on integrating sustainability and catalysing positive change…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | JD Ross Energyjdrossenergy.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 143 contacts → |
“JD Ross Energy is an international talent consultancy that solely focuses on the Renewable Energy sector, connecting the best talent across the globe with companies that are…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Greengage Environmental LTDgreengage-env.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 93 contacts → |
“Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Alfa Energy An Edison Energy Companyalfaenergygroup.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 88 contacts → |
“Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Xco2xco2.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 84 contacts → |
“We are a multidisciplinary group with backgrounds in engineering, architecture and environmental science, working as consultants for buildings, large developments and masterplans…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Ecoact Part Of Schneider Electricseadvisoryservices.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 69 contacts → |
“EcoAct is now SE Advisory Services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Pacific Greenpacificgreen.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 63 contacts → |
“Pacific Green is becoming a world leader at providing sustainable cleantech solutions to help solve climate warming, green energy and resource scarcity challenges.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Engage Consultingengage-consulting.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 48 contacts → |
“Energy Industry Experts We are subject matter experts in the energy sector.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | AVA Energyavaenergy.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“AVA Energy – Powering Energy Talent.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | ETUDEetude.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“We are a team of sustainability engineers passionate about creating buildings with a positive impact on the environment and the community.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | GAS Strategiesgasstrategies.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 45 contacts → |
“In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 540 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Sustainable energy consulting firms: dataset insights
September 21, 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
537 records in the displayed employee bands.
3 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 540 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 21, 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 ↗
Sustainable energy consulting firms by metro in the United Kingdom
Questions about this company list
What does Exact match mean for sustainable energy consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many sustainable energy consulting firms did RevenueBase find based in London, United Kingdom?
The saved snapshot records 540 matching company records, 20,686 tracked contacts and 10,390 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 21, 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
Sustainable energy consulting firms by geography
- Sustainable energy consulting firms based in Adelaide, Australia
- Sustainable energy consulting firms based in Brisbane, Australia
- Sustainable energy consulting firms based in Melbourne, Australia
- Sustainable energy consulting firms based in Perth, Australia
- Sustainable energy consulting firms based in Sydney, Australia
- Sustainable energy consulting firms based in Belo Horizonte, Brazil
- Sustainable energy consulting firms based in Curitiba, Brazil
- Sustainable energy consulting firms based in Fortaleza, Brazil
- Sustainable energy consulting firms based in Porto Alegre, Brazil
- Sustainable energy consulting firms based in Rio De Janeiro, Brazil
- Sustainable energy consulting firms based in Salvador, Brazil
- Sustainable energy consulting firms based in Sao Paulo, Brazil
Cite this list
RevenueBase Data Team. Top 25 sustainable energy consulting firms based in London, United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/sustainable-energy-consulting-firms/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
- Sustainable energy consulting firms based in Adelaide, Australia
- Sustainable energy consulting firms based in Brisbane, Australia
- Sustainable energy consulting firms based in Melbourne, Australia
- Sustainable energy consulting firms based in Perth, Australia
- Sustainable energy consulting firms based in Sydney, Australia
- Sustainable energy consulting firms based in Belo Horizonte, Brazil