Company lists · Data refreshed September 2026

Top 25 Net zero consultants based in London, United Kingdom

RevenueBase identified 326 company matches for net zero consultants associated with London, United Kingdom as of September 2026 and tracks 18,421 professional contacts across them, including 9,716 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for net zero consultants 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 20, 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 20, 2026 How this list was built
326Companies
18,421Contacts tracked
9,716Verified emails
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The 25 largest net zero consultants based in London, United Kingdom

Ranked by team size
Top 25 of 326 company matches for net zero consultants based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 20, 20265,001-10,0009,119 contacts →

Exact match

“Sustainability is our business.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 20, 20261,001-5,0003,848 contacts →

Exact match

“SLR is a committed partner in our clients’ sustainability journeys.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 20, 20261,001-5,000894 contacts →

Exact match

“Anthesis guides clients to sustainable performance.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500379 contacts →

Exact match

“Our mission is to accelerate the move to a decarbonised future.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500171 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 20, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200148 contacts →

Exact match

“EVORA is an award-winning global sustainability consultancy and software provider supporting real asset investors, owners, and operators.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200139 contacts →

Exact match

“Pollination is a specialist climate investment and advisory firm, dedicated to accelerating the transition to a net zero, nature positive and resilient future.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200115 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200109 contacts →

Exact match

“Ecolibrium is a sustainability tech company that empowers people to make better decisions based on proven data-driven ML algorithms through continuous monitoring, analysis and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-50088 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 20, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20070 contacts →

Exact match

“Xynteo is a boutique advisory firm, based in Europe and India, on a mission to help global organisations and investors accelerate sustainable impact and value creation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20069 contacts →

Exact match

“Planet Mark is a sustainability certification and net zero provider for organisations and the built environment.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-50069 contacts →

Exact match

“EcoAct is now SE Advisory Services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5050 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 20, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5048 contacts →

Exact match

“Energy Industry Experts We are subject matter experts in the energy sector.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5045 contacts →

Exact match

“Circle are Carbon, Project, Cost and Quality experts.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5045 contacts →

Exact match

“Abatable is a leading provider of carbon credit procurement, intelligence, and advisory solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20045 contacts →

Exact match

“Zevero is a leading carbon management platform that empowers organisations to measure, reduce, and report their carbon emissions with precision and efficiency.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20042 contacts →

Exact match

“At Eight Versa, we deliver a new direction for a balanced future.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5042 contacts →

Exact match

“KarbonWise is a sustainability solutions company that helps businesses take climate action with confidence and clarity.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 20, 2026n/a37 contacts →

Exact match

“Mitie’s knowledge of customer estates, combined with our ability to execute a zero carbon strategy from assessment through to delivery is, we believe, unrivalled.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5035 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 20, 2026 · View company records in RevenueBase

Showing 25 of 326 net zero consultants based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 9,716 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Net zero consultants based in London, United Kingdom at a glance

As of Sep 20, 2026
52.7%Verified-email coverage
56.5Average contacts per company
1-10Median size (employees)
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
205
11-50
84
51-200
25
201-500
5
501-1,000
1
1,001-5,000
3
5,001-10,000
1
10001+
1

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 326 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 “net zero consultants” 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 9,716 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 20, 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.

Net zero consultants 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 “net zero consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many net zero consultants are there based in London, United Kingdom?

RevenueBase identified 326 company matches for net zero consultants 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 net zero consultants?

London leads the United Kingdom with 326 company records, followed by Manchester (38) and Bristol (27).

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 9,716 professional contacts with verified work emails tracked across these 326 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 20, 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.