Company lists · Data refreshed September 2026

Top 25 Utility consulting firms based in London, United Kingdom

Name: Utility consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 141 companies tracked

RevenueBase identified 141 utility consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 6,025 professional contacts across them, including 2,008 with verified work emails and 509 with mobile numbers. London is the largest hub.

This list covers utility consulting firms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 13, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 13, 2026 86% judged on-target in blind review

141Companies

6,025Contacts tracked

2,008Verified emails

509Mobile numbers

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The 25 largest utility consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 141 utility consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to utility consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Shell Energy	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	2,627 contacts →
	Indirect evidence “We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Source: RevenueBase Database · checked Sep 13, 2026
2	Penspen	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	1,007 contacts →
	Indirect evidence “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Source: RevenueBase Database · checked Sep 13, 2026
3	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	670 contacts →
	Indirect evidence “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Source: RevenueBase Database · checked Sep 13, 2026
4	Genesis	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	501-1,000	401 contacts →
	Indirect evidence “Genesis is a market-leading advisory company focused on providing high-value technical and advisory services for the energy industry.” Source: RevenueBase Database · checked Sep 13, 2026
5	CFP Energy	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	171 contacts →
	Indirect evidence “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Source: RevenueBase Database · checked Sep 13, 2026
6	Alfa Energy An Edison Energy Company	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	88 contacts →
	Indirect evidence “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Source: RevenueBase Database · checked Sep 13, 2026
7	ETA Projects LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	62 contacts →
	Indirect evidence “Chosen to deliver, trusted to care - for 30 years we’ve worked with clients across a diverse range of sectors to deliver safe and sustainable engineering solutions that prioritise…” Source: RevenueBase Database · checked Sep 13, 2026
8	Advantage Utilities LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	50 contacts →
	Partial evidence “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”…” Source: RevenueBase Database · checked Sep 13, 2026
9	Engage Consulting	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	48 contacts →
	Indirect evidence “Energy Industry Experts We are subject matter experts in the energy sector.” Source: RevenueBase Database · checked Sep 13, 2026
10	GAS Strategies	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	45 contacts →
	Indirect evidence “In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.” Source: RevenueBase Database · checked Sep 13, 2026
11	Economic Consulting Associates ECA	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	33 contacts →
	Partial evidence “Economic Consulting Associates was formed in 1997 to provide economic and regulatory consulting services to industry and government.” Source: RevenueBase Database · checked Sep 13, 2026
12	Energex	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	27 contacts →
	Indirect evidence “Energex is a specialist commercial advisory practice serving the energy sector.” Source: RevenueBase Database · checked Sep 13, 2026
13	DR Cost	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	26 contacts →
	Partial evidence “Dr Cost is a utility consultancy based in NW London established in 2010.” Source: RevenueBase Database · checked Sep 13, 2026
14	Evolution Infrastructure	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	25 contacts →
	Indirect evidence “We are a specialist financial consultancy consisting of over 20 professional staff based in London, UK.” Source: RevenueBase Database · checked Sep 13, 2026
15	SIRIO	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	25 contacts →
	Strong evidence “Sirio is a specialist consulting firm operating at the intersection of consumers, regulation and utilities.” Source: RevenueBase Database · checked Sep 13, 2026
16	E&p Consulting	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	22 contacts →
	Indirect evidence “Working across the full energy portfolio, we deliver solutions and capabilities in project management, project assurance, agile product teams, digital expertise, data…” Source: RevenueBase Database · checked Sep 13, 2026
17	Commercial Energy Solutions LTD CES	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Partial evidence “At CES (Commercial Energy Solutions), we specialise in delivering bespoke utility management solutions to help businesses reduce costs, improve energy efficiency, and achieve…” Source: RevenueBase Database · checked Sep 13, 2026
18	Utility Data Intelligence LTD	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	14 contacts →
	Strong evidence “We are a new generation provider in the utility market, with innovative approach to consulting offering both energy as a service as well traditional support to partners and end…” Source: RevenueBase Database · checked Sep 13, 2026
19	Future Energy Partners	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	12 contacts →
	Indirect evidence “ENERGY TRANSITION We provide clean energy options and practical solutions for our clients, and pride ourselves in being a consultancy that is dedicated to delivering today’s…” Source: RevenueBase Database · checked Sep 13, 2026
20	Flow&ebb LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	11 contacts →
	Indirect evidence “We often talk to people in large businesses who are not getting the support they need to manage their energy costs well.” Source: RevenueBase Database · checked Sep 13, 2026
21	Syntillica	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	11 contacts →
	Indirect evidence “Syntillica is an independent energy consultancy group with more than 200 talented experts with experience across more than 100 countries We provide Energy Experts on Demand across…” Source: RevenueBase Database · checked Sep 13, 2026
22	Utility Results LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	10 contacts →
	Partial evidence “Utility Infrastructure Planning, Utility Project Management, Utility Design & Utility & Energy Procurement Specialists” Source: RevenueBase Database · checked Sep 13, 2026
23	ESP Consulting	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	10 contacts →
	Partial evidence “ESP Consulting is a specialist provider of advisory services to the energy sector.” Source: RevenueBase Database · checked Sep 13, 2026
24	Delta GAS And Power	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	9 contacts →
	Indirect evidence “With over 17 years’ experience in the energy trade and caring experience, we decided to combine our skill sets, and we created Delta Gas and Power.Delta Gas and Power’s motto is…” Source: RevenueBase Database · checked Sep 13, 2026
25	Lightinglives Consultants LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Partial evidence “LightingLives Consultants Limited is a premier energy consultant with a team of experts who give advice to business customers on their utilities accounts.” Source: RevenueBase Database · checked Sep 13, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: utility consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names utility consulting firms.
Partial evidence: Its own public description names part of utility consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name utility consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 141 utility consulting firms based in London, United Kingdom

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Utility consulting firms based in London, United Kingdom at a glance

As of Sep 13, 2026

33.3%Verified-email coverage

8.4%Mobile-number coverage

42.7Average contacts per company

1-10Median size (employees)

81.6%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

1,5620–30

41431–60

861–90

090–180

24180+

Company record updated

Median 78.0d

00–30

1,95531–60

2,86661–90

84390–180

361180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among utility consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “utility consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names utility consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among utility consulting firms, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 2,008 across the full list. 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 13, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Utility consulting firms by metro in the United Kingdom

Utility consulting firms in London115

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names utility consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many utility consulting firms are there based in London, United Kingdom?

RevenueBase identified 141 utility consulting firms headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Shell Energy, headquartered in London, tops this list with the largest team on record.

Which city has the most utility consulting firms?

London leads with 115 headquartered companies, followed by Manchester (19) and Glasgow (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,008 verified decision-maker contacts tracked across these 141 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 13, 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 Smart Search, 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.