Company lists · Data refreshed November 2026

Top 25 Energy cost optimization consultants based in the United Kingdom

RevenueBase identified 810 company matches for energy cost optimization consultants associated with the United Kingdom as of November 2026 and tracks 21,653 professional contacts across them, including 6,411 with verified work emails. London is the largest hub.

This list covers company matches for energy cost optimization 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
810Companies
21,653Contacts tracked
6,411Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest energy cost optimization consultants based in the United Kingdom

Ranked by team size
Top 25 of 810 company matches for energy cost optimization 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 matchWindsor, United KingdomHQ recorded Nov 6, 202610001+9,964 contacts →

Exact match

“Taking care of things.”

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 matchRedditch, United KingdomHQ recorded Nov 6, 202651-200320 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHebburn, United KingdomHQ recorded Nov 6, 2026201-500160 contacts →

Exact match

“At Consultiv Utilities, we help organisations to take control of their energy strategy and support them in navigating the complexities of energy, with confidence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchJarrow, United KingdomHQ recorded Nov 6, 202651-200137 contacts →

Exact match

“Tritility is a UK business energy consultancy helping organisations reduce energy and overhead costs through smarter electricity, gas and water procurement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCorby, United KingdomHQ recorded Nov 6, 202651-200131 contacts →

Exact match

“Utility Bidder is a revolutionary service, set up to ensure customers get the best gas and electricity tariffs on their business energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact 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
9Exact matchKirkham, United KingdomHQ recorded Nov 6, 202611-50123 contacts →

Exact match

“We work with over half of the FTSE 100 - We have saved £400 million for our clients to date - We saved £100 million for our clients in the past 18 months - Recoveries achieved can…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200118 contacts →

Exact match

“If you are operating a heat network, or planning a new heat network, then FairHeat can ensure that you get maximum efficiency from your heat networks while reducing operating and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDoxford International Business Park, United KingdomHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“Managing business energy can be overwhelming.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCounty Durham, United KingdomHQ recorded Nov 6, 2026201-500102 contacts →

Exact match

“Great Annual Savings Group gives businesses the power to control their running costs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSunderland, United KingdomHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“The Green Energy Advice Bureau are a leading independent award-winning UK commercial energy consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWigan, United KingdomHQ recorded Nov 6, 2026n/a99 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAberdeen, United KingdomHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“Katoni provides consulting, engineering, optimisation and emissions reduction support for the Energy Sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“Procurement services from Independent Utility Advice can protect your company from rising business energy costs and fluctuating prices.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchGuildford, United KingdomHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“True Group empowers business leaders like you with the clarity and confidence to make planet-saving decisions and create a competitive edge through energy and sustainability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“SwiftSwitch help businesses save time and money on their business utility costs by providing a free and impartial account management service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCardiff, United KingdomHQ recorded Nov 6, 202651-20074 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBedford, United KingdomHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“We know businesses don't consistently get a competitive deal on their energy bills, so by simplifying which supplier to choose through our simple market comparison - we help them…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTeam Valley, United KingdomHQ recorded Nov 6, 202611-5064 contacts →

Exact match

“We bring good energy to the table to help you save yours.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchManchester, United KingdomHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“We started as generators, not brokers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“CoCo Global Ltd has been established as a dedicated Cost Optimisation company to help companies achieve their cost reduction aims.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSunderland, United KingdomHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“We use our industry experience to review your utilities contracts (gas, electricity, water, waste and telecoms) to help you save money, time, and monitor your carbon footprint.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 810 energy cost optimization consultants based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 6,411 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy cost optimization consultants based in the United Kingdom at a glance

As of Nov 6, 2026
29.6%Verified-email coverage
26.7Average contacts per company
1-10Median size (employees)
16.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
489
11-50
240
51-200
58
201-500
6
501-1,000
1
1,001-5,000
2
10001+
2

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 810 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 “energy cost optimization 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 6,411 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.

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

How many energy cost optimization consultants are there based in the United Kingdom?

RevenueBase identified 810 company matches for energy cost optimization 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?

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

Which city has the most energy cost optimization consultants?

London leads with 130 company records, followed by Manchester (25) and Leeds (19).

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 6,411 professional contacts with verified work emails tracked across these 810 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.