Company lists · Data refreshed September 2026

Top 25 Grid resilience consulting firms based in London, United Kingdom

Name: Grid resilience 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 53 companies tracked

RevenueBase identified 53 grid resilience consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 2,385 professional contacts across them, including 848 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers grid resilience 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

53Companies

2,385Contacts tracked

848Verified emails

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The 25 largest grid resilience consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 53 grid resilience 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 grid resilience 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	Penspen	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
2	Marston Holdings	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	728 contacts →
	Indirect evidence “We support the government, utilities and private sectors through the delivery of market leading integrated technology-enabled solutions from design and implementation to…” Source: RevenueBase Database · checked Sep 28, 2026
3	Reactive Technologies Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	66 contacts →
	Partial evidence “Reactive Technologies (RTL) is a global Grid-Enhancing Technologies (GETs) company addressing the challenges of energy transition, electrification and accelerating load growth.” 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	AVA Energy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	47 contacts →
	Indirect evidence “AVA Energy – Powering Energy Talent.” Source: RevenueBase Database · checked Sep 28, 2026
6	Timera Energy	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial evidence “Timera Energy provides senior consulting expertise on value and risk in European gas and power markets.” Source: RevenueBase Database · checked Sep 28, 2026
7	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
8	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
9	Future Energy Partners	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
10	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
11	UK Networks Services	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial 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
12	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
13	Aldbury International	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “Aldbury International are Operational Resilience specialists who, as a unique multi-disciplinary team, support firms in the financial sector demonstrate that they have robust and…” Source: RevenueBase Database · checked Sep 28, 2026
14	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
15	Resilienc	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “ResilienC helps you take a data-led approach to optimise your resilience.” Source: RevenueBase Database · checked Sep 28, 2026
16	Resilius Consulting	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong evidence “Resilius Consulting is a specialist, UK-based consultancy firm offering professional services in the field of business resilience.” Source: RevenueBase Database · checked Sep 28, 2026
17	Energy Potential Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Energy Potential was created by Gary Huish and Andy Pace who have over 40 years’ experience in the UK Energy Sector.” Source: RevenueBase Database · checked Sep 28, 2026
18	ASL Global	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “ASL Global provides specialist services in the energy and high consequence sector.” Source: RevenueBase Database · checked Sep 28, 2026
19	BJD Consulting Engineers	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “We are a consulting engineers company who provides specialised design, planning, and advisory services related to electrical systems in buildings, infrastructure, environmental…” Source: RevenueBase Database · checked Sep 28, 2026
20	Trident Nero	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Trident Nero helps organisations identify the risks and vulnerabilities hidden inside the way they operate, before they surface as performance failures, delivery crises, or…” Source: RevenueBase Database · checked Sep 28, 2026
21	The Ulin Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “As a business owner you keep a firm handle on daily operations.” Source: RevenueBase Database · checked Sep 28, 2026
22	Axonas	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Axonas is a UK-based specialist consultancy delivering advanced engineering and advisory solutions to clients worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
23	Operational Intelligence LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “OI offer consultancy services and training in risk and energy assessments to help clients improve critical facility performance.” Source: RevenueBase Database · checked Sep 28, 2026
24	Sscg Energy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “SSCG Energy help energy sector clients deliver affordable, reliable, and sustainable energy supply projects needed to end extreme poverty and promote shared prosperity.” Source: RevenueBase Database · checked Sep 28, 2026
25	Watt-Logic	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Helping clients navigate a complex and fast-changing energy environment Working with businesses across the energy value chain to capture the commercial opportunities of the energy…” 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: grid resilience 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 grid resilience consulting firms.
Partial evidence: Its own public description names part of grid resilience consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid resilience 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 53 grid resilience consulting firms based in London, United Kingdom

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Grid resilience consulting firms based in London, United Kingdom at a glance

As of Sep 28, 2026

35.6%Verified-email coverage

45.0Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 53 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 grid resilience 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 “grid resilience 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 grid resilience 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 grid resilience 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, 848 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 grid resilience 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 grid resilience consulting firms are there based in London, United Kingdom?

RevenueBase identified 53 grid resilience 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?

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

Which city in the United Kingdom has the most grid resilience consulting firms?

London leads the United Kingdom with 53 headquartered companies, followed by Edinburgh (6) and Manchester (6).

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 848 verified decision-maker contacts tracked across these 53 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.