Company lists · Data refreshed November 2026

Top 25 Grid decarbonization consultants based in the United Kingdom

RevenueBase identified 340 company matches for grid decarbonization consultants associated with the United Kingdom as of November 2026 and tracks 13,980 professional contacts across them, including 3,430 with verified work emails. London is the largest hub.

This list covers company matches for grid decarbonization consultants 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 November 6, 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 Nov 6, 2026 How this list was built
340Companies
13,980Contacts tracked
3,430Verified emails
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The 25 largest grid decarbonization consultants based in the United Kingdom

Ranked by team size
Top 25 of 340 company matches for grid decarbonization consultants based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchCoventry, United KingdomHQ recorded Nov 6, 202610001+4,460 contacts →

Exact match

“It's on us to make new energy work.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0002,764 contacts →

Exact match

“We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBirmingham, United KingdomHQ recorded Nov 6, 2026201-500346 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500227 contacts →

Exact match

“As a trusted end-to-end partner in the energy space, Brook Green Supply delivers the insight and expertise our customers need to make informed decisions, transact energy with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchManchester, United KingdomHQ recorded Nov 6, 202651-200170 contacts →

Exact match

“TNEI is an independent specialist energy consultancy providing technical, strategic, environmental and consenting advice to organisations operating within the conventional and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500155 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBristol, United KingdomHQ recorded Nov 6, 202651-200135 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200130 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBristol, United KingdomHQ recorded Nov 6, 202651-200129 contacts →

Exact match

“Powered by People.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200128 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNorwich, United KingdomHQ recorded Nov 6, 202651-200117 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLisburn, United KingdomHQ recorded Nov 6, 2026501-1,000115 contacts →

Exact match

“Empowering Your Tomorrow.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“Highview is a leading energy infrastructure business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-50083 contacts →

Exact match

“First Mode develops and manufactures decarbonization solutions for heavy industry partners dedicated to the clean energy future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Reactive Technologies (RTL) is a global Grid-Enhancing Technologies (GETs) company addressing the challenges of energy transition, electrification and accelerating load growth.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchExeter, United KingdomHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“CARBON FIRST ENGINEERING City Science is the first engineering company dedicated to decarbonisation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBlackpool, United KingdomHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“From world famous brands to multi-national industrials, we strive to make carbon net zero ambitions a reality; by benchmarking where you are today to developing a robust net zero…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Arenko is a market leading technology provider enabling the clean energy transition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLeicester, United KingdomHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Kelvin Power provides expert advice and design solutions to the global power industry and the renewable energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSandhurst, United KingdomHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5050 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchManchester, United KingdomHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“At Envantage, you will find the brightest and best experts in low carbon and business energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCambridge, United KingdomHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Advanced Infrastructure was formed around the shared frustration among the founders that decarbonisation shouldn’t be blocked by something as simple as data access and visibility.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“We’re helping to create a world where every building is truly zero carbon.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Nov 6, 2026n/a34 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 · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 340 grid decarbonization consultants based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 3,430 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Grid decarbonization consultants based in the United Kingdom at a glance

As of Nov 6, 2026
24.5%Verified-email coverage
41.1Average contacts per company
1-10Median size (employees)
33.2%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
207
11-50
88
51-200
24
201-500
7
501-1,000
4
1,001-5,000
5
10001+
3

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 340 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 “grid decarbonization 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 3,430 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 November 6, 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.

Grid decarbonization consultants by metro

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

How many grid decarbonization consultants are there based in the United Kingdom?

RevenueBase identified 340 company matches for grid decarbonization consultants associated with the United Kingdom as of November 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?

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

Which city has the most grid decarbonization consultants?

London leads with 113 company records, followed by Manchester (12) and Edinburgh (10).

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 3,430 professional contacts with verified work emails tracked across these 340 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 November 6, 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.