Company lists · Data refreshed September 2026

Top 25 Net zero implementation consultancies based in the United Kingdom

RevenueBase identified 869 company matches for net zero implementation consultancies associated with the United Kingdom as of September 2026 and tracks 21,752 professional contacts across them, including 10,914 with verified work emails. London is the largest hub.

This list covers company matches for net zero implementation consultancies 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 29, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built
869Companies
21,752Contacts tracked
10,914Verified emails
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The 25 largest net zero implementation consultancies based in the United Kingdom

Ranked by team size
Top 25 of 869 company matches for net zero implementation consultancies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 29, 20265,001-10,0009,119 contacts →

Exact match

“Sustainability is our business.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 29, 20265,001-10,0001,064 contacts →

Exact match

“Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 29, 20261,001-5,000894 contacts →

Exact match

“Anthesis guides clients to sustainable performance.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 29, 2026n/a621 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 29, 2026 · View company records in RevenueBase
5Exact matchKirkham, United KingdomHQ recorded Sep 29, 2026501-1,000373 contacts →

Exact match

“Inspired PLC is a leading technology-enabled provider of energy and sustainability solutions that allow UK and Irish businesses to transition to net-zero carbon and manage their…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchBirmingham, United KingdomHQ recorded Sep 29, 2026201-500317 contacts →

Exact match

“Climate change is without a doubt the greatest challenge we face in these times.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchRedditch, United KingdomHQ recorded Sep 29, 202651-200316 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 29, 2026 · View company records in RevenueBase
8Exact matchBirmingham, United KingdomHQ recorded Sep 29, 2026501-1,000253 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchLytham, United KingdomHQ recorded Sep 29, 2026501-1,000190 contacts →

Exact match

“Inenco Group has been acquired by Sustainable Energy First.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchKingston Upon Thames, United KingdomHQ recorded Sep 29, 202651-200172 contacts →

Exact match

“We work with FDs, CEOs, and business owners throughout the UK - delivering new perspectives and insights to increase profitability, and reduce their carbon footprint.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchStonehouse, United KingdomHQ recorded Sep 29, 20261,001-5,000171 contacts →

Exact match

“Vulcain Engineering Ltd is an ambitious engineering consultancy which is supporting the UK Government’s policy objective of 2050 Net Zero Carbon through its involvement in…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchChilworth, United KingdomHQ recorded Sep 29, 202651-200157 contacts →

Exact match

“Zenergi supports and empowers your journey to net zero.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchBristol, United KingdomHQ recorded Sep 29, 202651-200142 contacts →

Exact match

“Optimised exists to accelerate the shift to a low-carbon future by making energy management work; commercially, operationally and sustainably.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 29, 2026201-500137 contacts →

Exact match

“We help our clients to invest in and navigate the energy transition.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchLeicester, United KingdomHQ recorded Sep 29, 202651-200129 contacts →

Exact match

“Recognised as the Consultancy of the Year in 2021 by Energy Live News, Consultus delivers world-class consulting, buying and management services for Business Energy and Business…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchCardiff, United KingdomHQ recorded Sep 29, 202651-200124 contacts →

Exact match

“We are an award-winning energy consultancy and certified B Corp™.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-200122 contacts →

Exact match

“Tecknuovo’s Zero Dependency® model transforms essential services by transferring capability back into your organisation.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-200115 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 29, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-200115 contacts →

Exact match

“Longevity Partners is a multidisciplinary energy and sustainability consultancy.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchNorwich, United KingdomHQ recorded Sep 29, 202651-200111 contacts →

Exact match

“Cornwall Insight are trusted independent experts in the energy industry.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchLoughborough, United KingdomHQ recorded Sep 29, 202611-50106 contacts →

Exact match

“Cenex was established as the UK’s first Centre of Excellence for Low Carbon and Fuel Cell technologies in 2005.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchBristol, United KingdomHQ recorded Sep 29, 202651-200100 contacts →

Exact match

“Everoze is an employee-owned renewables, green hydrogen and storage consultancy.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20098 contacts →

Exact match

“eEnergy (AIM: EAAS) is a UK-based Energy-as-a-Service (EaaS) provider, funding and delivering energy-saving and energy-generating solutions across multi-site public sector and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchWest Malling, United KingdomHQ recorded Sep 29, 202651-20093 contacts →

Exact match

“At LASER Energy, part of the Commercial Services Group Energy & Environment portfolio, a wholly-owned business unit of Kent County Council, we help public sector organisations…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20089 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 29, 2026 · View company records in RevenueBase

Showing 25 of 869 net zero implementation consultancies based in the United Kingdom

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Net zero implementation consultancies based in the United Kingdom at a glance

As of Sep 29, 2026
50.2%Verified-email coverage
25.0Average contacts per company
1-10Median size (employees)
30.6%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
588
11-50
200
51-200
54
201-500
13
501-1,000
4
1,001-5,000
3
5,001-10,000
3
10001+
1

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 869 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 “net zero implementation consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 10,914 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 29, 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 “net zero implementation consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many net zero implementation consultancies are there based in the United Kingdom?

RevenueBase identified 869 company matches for net zero implementation consultancies 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?

ERM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most net zero implementation consultancies?

London leads with 266 company records, followed by Manchester (32) and Edinburgh (22).

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 10,914 professional contacts with verified work emails tracked across these 869 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 29, 2026.

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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.