Company lists · Data refreshed September 2026
Top 25 Cleantech consulting firms based in the United Kingdom
RevenueBase identified 544 company matches for cleantech consulting firms associated with the United Kingdom as of September 2026 and tracks 4,879 professional contacts across them, including 2,245 with verified work emails. London is the largest hub.
This list covers company matches for cleantech consulting firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed 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 cleantech consulting firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 500 contacts → | ||||
Exact match “Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 418 contacts → | ||||
Exact match “Fichtner is one of the world's leading independent engineering consultancy firms.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 316 contacts → | ||||
Exact match “EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 185 contacts → | ||||
Exact match “The Renewable Energy Consultants.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 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 | |||||
| 6 | 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 | |||||
| 7 | 100 contacts → | ||||
Exact match “Everoze is an employee-owned renewables, green hydrogen and storage consultancy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 90 contacts → | ||||
Exact match “Katoni provides consulting, engineering, optimisation and emissions reduction support for the Energy Sector.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 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 | |||||
| 10 | 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 | |||||
| 11 | 81 contacts → | ||||
Exact match “We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 80 contacts → | ||||
Exact match “Green Cat Renewables is a dynamic, innovative, and growing company that provides tailored support to the needs of the individual developer throughout the entire development…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 71 contacts → | ||||
Exact match “EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 66 contacts → | ||||
Exact match “We bring good energy to the table to help you save yours.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 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 | |||||
| 16 | 63 contacts → | ||||
Exact match “JBA are industry-leading consultants, providing flexible engineering and design solutions, procurement, and construction services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 56 contacts → | ||||
Exact match “Storm4 is a specialized executive search and recruiting firm helping America's energy and infrastructure companies hire the leaders and technical talent they need to grow.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 55 contacts → | ||||
Exact match “Renewable Energy Experts: For over 25 years, Ecolution have been at the forefront of renewable energy services, using our award-winning expertise, to help our clients innovate and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 49 contacts → | ||||
Exact match “Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 44 contacts → | ||||
Exact match “Amberside Advisors is an independent consultancy providing financial and commercial advice to low carbon energy, infrastructure and public sector projects.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 41 contacts → | ||||
Exact match “Hodkinson Consultancy is majority owned by an Employee Ownership Trust (EOT) with a mission to make a difference through energy and environment consultancy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 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 21, 2026 · View company records in RevenueBase | |||||
| 23 | 32 contacts → | ||||
Exact match “Our Footprints combines a small and dedicated group of highly experienced and qualified Engineers/ Project Managers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 32 contacts → | ||||
Exact match “CEA is a growing consultancy specialising in environmental, consenting and permitting support for energy projects and developments on the land-water interface, with terrestrial…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 31 contacts → | ||||
Exact match “We believe that if you understand your environmental targets, you will have a better understanding of their real-world impacts.” 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 “cleantech 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 544 cleantech consulting firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 2,245 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cleantech consulting firms based in the United Kingdom at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 544 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “cleantech 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 2,245 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.
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 “cleantech consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cleantech consulting firms are there based in the United Kingdom?
RevenueBase identified 544 company matches for cleantech consulting firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Natural Power tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cleantech consulting firms?
London leads with 158 company records, followed by Edinburgh (16) and Bristol (13).
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 2,245 professional contacts with verified work emails tracked across these 544 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 544 cleantech consulting firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Cleantech consulting firms by geography
- Cleantech consulting firms based in Melbourne, Australia
- Cleantech consulting firms based in Sydney, Australia
- Cleantech consulting firms based in Belo Horizonte, Brazil
- Cleantech consulting firms based in Porto Alegre, Brazil
- Cleantech consulting firms based in Rio De Janeiro, Brazil
- Cleantech consulting firms based in Sao Paulo, Brazil
- Cleantech consulting firms based in Calgary, Canada
- Cleantech consulting firms based in Toronto, Canada
- Cleantech consulting firms based in Vancouver, Canada
- Cleantech consulting firms based in Barcelona, Spain
- Cleantech consulting firms based in Madrid, Spain
- Cleantech consulting firms based in Austin, United States
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
- Cleantech consulting firms based in Melbourne, Australia
- Cleantech consulting firms based in Sydney, Australia
- Cleantech consulting firms based in Belo Horizonte, Brazil
- Cleantech consulting firms based in Porto Alegre, Brazil
- Cleantech consulting firms based in Rio De Janeiro, Brazil
- Cleantech consulting firms based in Sao Paulo, Brazil
Company intelligence · public preview
Top 25 cleantech consulting firms based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 544 matching company records for cleantech consulting firms based in the United Kingdom, with 4,879 tracked contacts and 2,245 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 cleantech consulting firms based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Natural Powernaturalpower.comHQ: Castle Douglas, United KingdomReported employees: 501-1,000 | Castle Douglas, United Kingdom | 501-1,000 | Exact match | 500 contacts → |
“Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Fichtner Consulting Engineers LTDfichtner.co.ukHQ: Stockport, United KingdomReported employees: 51-200 | Stockport, United Kingdom | 51-200 | Exact match | 418 contacts → |
“Fichtner is one of the world's leading independent engineering consultancy firms.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  EIC Partnershipeic.co.ukHQ: Redditch, United KingdomReported employees: 51-200 | Redditch, United Kingdom | 51-200 | Exact match | 316 contacts → |
“EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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. | |||||
| 5 |  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. | |||||
| 6 |  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. | |||||
| 7 |  Everozeeveroze.comHQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 100 contacts → |
“Everoze is an employee-owned renewables, green hydrogen and storage consultancy.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Katoni Engineeringkatoni.comHQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 90 contacts → |
“Katoni provides consulting, engineering, optimisation and emissions reduction support for the Energy Sector.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  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. | |||||
| 10 |  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. | |||||
| 11 |  clearvue.businessclearvue.businessHQ: Gateshead, United KingdomReported employees: 51-200 | Gateshead, United Kingdom | 51-200 | Exact match | 81 contacts → |
“We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Green CAT Renewables LTDgreencatrenewables.co.ukHQ: Biggar, United KingdomReported employees: 51-200 | Biggar, United Kingdom | 51-200 | Exact match | 80 contacts → |
“Green Cat Renewables is a dynamic, innovative, and growing company that provides tailored support to the needs of the individual developer throughout the entire development…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Envirocentreenvirocentre.co.ukHQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 71 contacts → |
“EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  ECO Logic Partnersecologicpartners.co.ukHQ: Team Valley, United KingdomReported employees: 11-50 | Team Valley, United Kingdom | 11-50 | Exact match | 66 contacts → |
“We bring good energy to the table to help you save yours.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  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. | |||||
| 16 |  JBA Engineeringjbaengineering.comHQ: Wynyard, United KingdomReported employees: 11-50 | Wynyard, United Kingdom | 11-50 | Exact match | 63 contacts → |
“JBA are industry-leading consultants, providing flexible engineering and design solutions, procurement, and construction services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Storm4storm4.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 56 contacts → |
“Storm4 is a specialized executive search and recruiting firm helping America's energy and infrastructure companies hire the leaders and technical talent they need to grow.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Ecolution Groupecolutiongroup.comHQ: Trottiscliffe, United KingdomReported employees: 51-200 | Trottiscliffe, United Kingdom | 51-200 | Exact match | 55 contacts → |
“Renewable Energy Experts: For over 25 years, Ecolution have been at the forefront of renewable energy services, using our award-winning expertise, to help our clients innovate and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Carbonxgen Limitedcarbonxgen.comHQ: Sandhurst, United KingdomReported employees: 11-50 | Sandhurst, United Kingdom | 11-50 | Exact match | 49 contacts → |
“Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Amberside Advisorsamberside.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Amberside Advisors is an independent consultancy providing financial and commercial advice to low carbon energy, infrastructure and public sector projects.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hodkinson Consultancy LTDhodkinsonconsultancy.com HQ: Rickmansworth, United KingdomReported employees: 11-50 | Rickmansworth, United Kingdom | 11-50 | Exact match | 41 contacts → |
“Hodkinson Consultancy is majority owned by an Employee Ownership Trust (EOT) with a mission to make a difference through energy and environment consultancy.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  OUR Footprints LTDourfootprints.co.ukHQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Our Footprints combines a small and dedicated group of highly experienced and qualified Engineers/ Project Managers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  CEAceaenvironmental.co.ukHQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 32 contacts → |
“CEA is a growing consultancy specialising in environmental, consenting and permitting support for energy projects and developments on the land-water interface, with terrestrial…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  SCS Sustainable Construction Servicesscspartnership.co.ukHQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 31 contacts → |
“We believe that if you understand your environmental targets, you will have a better understanding of their real-world impacts.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 544 company matches
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Cleantech 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
541 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 worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 544 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 ↗
Questions about this company list
What does Exact match mean for cleantech 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 cleantech consulting firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 544 matching company records, 4,879 tracked contacts and 2,245 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
Cleantech consulting firms by geography
- Cleantech consulting firms based in Melbourne, Australia
- Cleantech consulting firms based in Sydney, Australia
- Cleantech consulting firms based in Belo Horizonte, Brazil
- Cleantech consulting firms based in Porto Alegre, Brazil
- Cleantech consulting firms based in Rio De Janeiro, Brazil
- Cleantech consulting firms based in Sao Paulo, Brazil
- Cleantech consulting firms based in Calgary, Canada
- Cleantech consulting firms based in Toronto, Canada
- Cleantech consulting firms based in Vancouver, Canada
- Cleantech consulting firms based in Barcelona, Spain
- Cleantech consulting firms based in Madrid, Spain
- Cleantech consulting firms based in Austin, United States
Cite this list
RevenueBase Data Team. Top 25 cleantech consulting firms based in the United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/cleantech-consulting-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cleantech consulting firms based in Melbourne, Australia
- Cleantech consulting firms based in Sydney, Australia
- Cleantech consulting firms based in Belo Horizonte, Brazil
- Cleantech consulting firms based in Porto Alegre, Brazil
- Cleantech consulting firms based in Rio De Janeiro, Brazil
- Cleantech consulting firms based in Sao Paulo, Brazil
Company intelligence · public preview
Top 25 cleantech consulting firms based in the United Kingdom
RevenueBase records 544 matching company records for cleantech consulting firms based in the United Kingdom, with 4,879 tracked contacts and 2,245 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 cleantech consulting firms based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Natural Powernaturalpower.com HQ: Castle Douglas, United KingdomReported employees: 501-1,000 | Castle Douglas, United Kingdom | 501-1,000 | Exact match | 500 contacts → |
“Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Fichtner Consulting Engineers LTDfichtner.co.uk HQ: Stockport, United KingdomReported employees: 51-200 | Stockport, United Kingdom | 51-200 | Exact match | 418 contacts → |
“Fichtner is one of the world's leading independent engineering consultancy firms.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | EIC Partnershipeic.co.uk HQ: Redditch, United KingdomReported employees: 51-200 | Redditch, United Kingdom | 51-200 | Exact match | 316 contacts → |
“EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | 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. | |||||
| 7 | Everozeeveroze.com HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 100 contacts → |
“Everoze is an employee-owned renewables, green hydrogen and storage consultancy.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Katoni Engineeringkatoni.com HQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 90 contacts → |
“Katoni provides consulting, engineering, optimisation and emissions reduction support for the Energy Sector.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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. | |||||
| 10 | 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. | |||||
| 11 | clearvue.businessclearvue.business HQ: Gateshead, United KingdomReported employees: 51-200 | Gateshead, United Kingdom | 51-200 | Exact match | 81 contacts → |
“We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Green CAT Renewables LTDgreencatrenewables.co.uk HQ: Biggar, United KingdomReported employees: 51-200 | Biggar, United Kingdom | 51-200 | Exact match | 80 contacts → |
“Green Cat Renewables is a dynamic, innovative, and growing company that provides tailored support to the needs of the individual developer throughout the entire development…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Envirocentreenvirocentre.co.uk HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 71 contacts → |
“EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ECO Logic Partnersecologicpartners.co.uk HQ: Team Valley, United KingdomReported employees: 11-50 | Team Valley, United Kingdom | 11-50 | Exact match | 66 contacts → |
“We bring good energy to the table to help you save yours.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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. | |||||
| 16 | JBA Engineeringjbaengineering.com HQ: Wynyard, United KingdomReported employees: 11-50 | Wynyard, United Kingdom | 11-50 | Exact match | 63 contacts → |
“JBA are industry-leading consultants, providing flexible engineering and design solutions, procurement, and construction services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Storm4storm4.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 56 contacts → |
“Storm4 is a specialized executive search and recruiting firm helping America's energy and infrastructure companies hire the leaders and technical talent they need to grow.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ecolution Groupecolutiongroup.com HQ: Trottiscliffe, United KingdomReported employees: 51-200 | Trottiscliffe, United Kingdom | 51-200 | Exact match | 55 contacts → |
“Renewable Energy Experts: For over 25 years, Ecolution have been at the forefront of renewable energy services, using our award-winning expertise, to help our clients innovate and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Carbonxgen Limitedcarbonxgen.com HQ: Sandhurst, United KingdomReported employees: 11-50 | Sandhurst, United Kingdom | 11-50 | Exact match | 49 contacts → |
“Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Amberside Advisorsamberside.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Amberside Advisors is an independent consultancy providing financial and commercial advice to low carbon energy, infrastructure and public sector projects.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hodkinson Consultancy LTDhodkinsonconsultancy.com HQ: Rickmansworth, United KingdomReported employees: 11-50 | Rickmansworth, United Kingdom | 11-50 | Exact match | 41 contacts → |
“Hodkinson Consultancy is majority owned by an Employee Ownership Trust (EOT) with a mission to make a difference through energy and environment consultancy.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | OUR Footprints LTDourfootprints.co.uk HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Our Footprints combines a small and dedicated group of highly experienced and qualified Engineers/ Project Managers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | CEAceaenvironmental.co.uk HQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 32 contacts → |
“CEA is a growing consultancy specialising in environmental, consenting and permitting support for energy projects and developments on the land-water interface, with terrestrial…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | SCS Sustainable Construction Servicesscspartnership.co.uk HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 31 contacts → |
“We believe that if you understand your environmental targets, you will have a better understanding of their real-world impacts.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 544 company matches
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Cleantech 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
541 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 worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 544 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 ↗
Questions about this company list
What does Exact match mean for cleantech 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 cleantech consulting firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 544 matching company records, 4,879 tracked contacts and 2,245 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
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Cite this list
RevenueBase Data Team. Top 25 cleantech consulting firms based in the United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/cleantech-consulting-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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