Company lists · Data refreshed September 2026

Top 25 Electricity market consulting firms based in London, United Kingdom

Name: Electricity market 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 28, 2026 119 companies tracked

RevenueBase identified 119 electricity market consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 1,230 professional contacts across them, including 501 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers electricity market 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 28, 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 28, 2026 86% judged on-target in blind review

119Companies

1,230Contacts tracked

501Verified emails

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The 25 largest electricity market consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 119 electricity market consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to electricity market 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	Brook Green Supply	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	183 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
2	Nexanteca, Energy And Chemicals Advisory	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence “NexantECA, the Energy and Chemicals Advisory company is the leading advisor to the energy, refining, and chemical industries.” Source: RevenueBase Database · checked Sep 28, 2026
3	Advantage Utilities LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
4	Engage Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	48 contacts →
	Indirect evidence “Energy Industry Experts We are subject matter experts in the energy sector.” Source: RevenueBase Database · checked Sep 28, 2026
5	GAS Strategies	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
6	Economic Consulting Associates ECA	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
7	Energex	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “Energex is a specialist commercial advisory practice serving the energy sector.” Source: RevenueBase Database · checked Sep 28, 2026
8	Timera Energy	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Strong evidence “Timera Energy provides senior consulting expertise on value and risk in European gas and power markets.” Source: RevenueBase Database · checked Sep 28, 2026
9	SIRIO	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Sirio is a specialist consulting firm operating at the intersection of consumers, regulation and utilities.” Source: RevenueBase Database · checked Sep 28, 2026
10	M.P.E. Power System Consultants	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “M.P.E.” Source: RevenueBase Database · checked Sep 28, 2026
11	Martello Expert Services	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “Martello Expert Services is an independent consulting practice that provides expert witnesses in financial services, energy and commodities to the legal sector and their clients.” Source: RevenueBase Database · checked Sep 28, 2026
12	Matrica	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “We provide energy consultancy, data management, energy demand management and general forecasting systems for the power, gas and renewable sectors.” Source: RevenueBase Database · checked Sep 28, 2026
13	Utility Data Intelligence LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
14	Flow&ebb LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
15	Syntillica	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
16	Utility Results LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Utility Infrastructure Planning, Utility Project Management, Utility Design & Utility & Energy Procurement Specialists” Source: RevenueBase Database · checked Sep 28, 2026
17	Complete Strategy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “Complete Strategy are now part of Flint Global.” Source: RevenueBase Database · checked Sep 28, 2026
18	ESP Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
19	RGJ Consulting LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Partial evidence “RGJ is a Consulting Practice founded by Karl Pestell and Darren North in June 2018.” Source: RevenueBase Database · checked Sep 28, 2026
20	Holt Energy Advisors	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “HEA is an energy advisory company delivering expert commercial, legal and transaction advisory solutions to the energy sector.” Source: RevenueBase Database · checked Sep 28, 2026
21	Sehv Services Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “LV and HV Electrical Consultancy and Engineering Services to Renewable Energy Markets and Industrial and Commercial Sectors” Source: RevenueBase Database · checked Sep 28, 2026
22	Lightinglives Consultants LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect 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 28, 2026
23	UK Networks Services	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “We’re the UK’s leading independent grid experts, here to help you connect your electrification needs with your strategic goals.” Source: RevenueBase Database · checked Sep 28, 2026
24	Kuungana Advisory	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “Kuungana Advisory is a consulting firm providing energy economics and commercial advisory services to public sector and private sector actors in the energy sector.” Source: RevenueBase Database · checked Sep 28, 2026
25	EPEUS	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Epeus provides niche consulting services to the Energy Industry.” Source: RevenueBase Database · checked Sep 28, 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: electricity market 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 electricity market consulting firms.
Partial evidence: Its own public description names part of electricity market consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electricity market 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 119 electricity market consulting firms based in London, United Kingdom

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Electricity market consulting firms based in London, United Kingdom at a glance

As of Sep 28, 2026

40.7%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 119 companies.

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 electricity market 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 “electricity market 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 electricity market 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 electricity market 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, 501 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 28, 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.

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 electricity market 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 electricity market consulting firms are there based in London, United Kingdom?

RevenueBase identified 119 electricity market 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?

Brook Green Supply, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most electricity market consulting firms?

London leads the United Kingdom with 119 headquartered companies, followed by Leicester (12) and Manchester (9).

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 501 verified decision-maker contacts tracked across these 119 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 28, 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.