Company lists · Data refreshed September 2026

Top 25 Electrical grid consulting firms based in London, United Kingdom

Name: Electrical grid 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 89 companies tracked

RevenueBase identified 89 electrical grid consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 1,835 professional contacts across them, including 704 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers electrical grid 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

89Companies

1,835Contacts tracked

704Verified emails

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

Ranked by team size

Top 25 of 89 electrical grid 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 electrical grid 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	ETA Projects LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
3	Navitas Engineering LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	27 contacts →
	Partial evidence “Navitas Engineering provides electrical engineering consultancy services to the railway and electricity supply industries.” Source: RevenueBase Database · checked Sep 28, 2026
4	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
5	Eltrade Electrical LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	23 contacts →
	Partial evidence “ELTRADE ELECTRICAL LTD is a civil engineering company” Source: RevenueBase Database · checked Sep 28, 2026
6	UK Power Engineers LTD Ukpe	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “UK Power Engineers (UKPE) is a professional services firm established in 2013, specializing in turnkey design, engineering, and consultancy solutions for the UK and international…” Source: RevenueBase Database · checked Sep 28, 2026
7	Power Transmission & Distribution	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “PaE T&D is a Power Transmission and Distribution Design Consultancy” Source: RevenueBase Database · checked Sep 28, 2026
8	SPL Construct LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “As fully qualified, time served electrical contractors, we have a wealth of knowledge in the electrical industry, predominantly carrying out a wide range of services from design…” Source: RevenueBase Database · checked Sep 28, 2026
9	Zeus Electrical Constructions	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “ZEUS is engaged in studies and electrical installations.” Source: RevenueBase Database · checked Sep 28, 2026
10	Smpnet	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	11 contacts →
	Indirect evidence “SMPnet’s Omega technology suite is a core platform for advanced power system optimisation and control across modern energy networks.” Source: RevenueBase Database · checked Sep 28, 2026
11	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
12	Rail Power Solutions	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Partial evidence “Established in 2013, Rail Power Solutions (RPS) has grown rapidly to become a well-recognised and leading provider of electrical designs for the railway industry.” Source: RevenueBase Database · checked Sep 28, 2026
13	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
14	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
15	Total Electric Solutions LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Established in 2006, Total Electric Solutions Ltd provides a complete electrical package from the design & tendering process through to the final installation & after care.” Source: RevenueBase Database · checked Sep 28, 2026
16	MPE Electrical Contractors LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	3 contacts →
	Partial evidence “MPE Electrical Contractors are a London /Kent based company specialising in all aspects of electrical installation within the residential, commercial and industrial sectors.” Source: RevenueBase Database · checked Sep 28, 2026
17	Grace Automotive	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “While government policy across the UK and Europe is proving effective in predictably accelerating both uptake of battery electric vehicles (BEV) and demand for energy from the…” Source: RevenueBase Database · checked Sep 28, 2026
18	Power & Rail Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Power & Rail Solutions (PRS) is an innovative, progressive company that provide an extensive range of Consultancy, Design and Management services.” Source: RevenueBase Database · checked Sep 28, 2026
19	Jackson Hickey Consulting Engineers	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “Mechanical and Electrical Services Design Consulting Engineers.” Source: RevenueBase Database · checked Sep 28, 2026
20	BJD Consulting Engineers	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong 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
21	Power System Consultants LTD T A Smartgpower	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “SmartGPower (Power System Consultant Ltd) is a growing advisory and consultancy firm committed to supporting the smart and sustainable development of renewable energy projects…” 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	Regency Electrical Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
24	Capital Rewire	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	1 contacts →
	Partial evidence “Capital Rewire are a fully qualified team of electrical engineers, with a wealth of experience implementing diverse commercial projects throughout London.” Source: RevenueBase Database · checked Sep 28, 2026
25	Nugen Electrical LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence 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: electrical grid 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 electrical grid consulting firms.
Partial evidence: Its own public description names part of electrical grid consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical grid 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 89 electrical grid consulting firms based in London, United Kingdom

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Electrical grid consulting firms based in London, United Kingdom at a glance

As of Sep 28, 2026

38.4%Verified-email coverage

20.6Average 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

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 89 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 electrical grid 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 “electrical grid 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 electrical grid 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 electrical grid 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, 704 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.

Electrical grid consulting firms by metro in the United Kingdom

Electrical grid consulting firms in Manchester27

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 electrical grid 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 electrical grid consulting firms are there based in London, United Kingdom?

RevenueBase identified 89 electrical grid 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 electrical grid consulting firms?

London leads the United Kingdom with 89 headquartered companies, followed by Manchester (27) and Nottingham (14).

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 704 verified decision-maker contacts tracked across these 89 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.