Company lists · Data refreshed September 2026

Top 25 Power distribution engineering companies based in London, United Kingdom

Name: Power distribution engineering companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 158 companies tracked

RevenueBase identified 158 company matches for power distribution engineering companies associated with London, United Kingdom as of September 2026 and tracks 3,162 professional contacts across them, including 1,161 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for power distribution engineering companies associated with London, 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 September 17, 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 Sep 17, 2026 How this list was built

158Companies

3,162Contacts tracked

1,161Verified emails

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The 25 largest power distribution engineering companies based in London, United Kingdom

Ranked by team size

Top 25 of 158 company matches for power distribution engineering companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Penspen	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	1,007 contacts →
	Exact match “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Aureos	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	583 contacts →
	Exact match “Aureos is a multi-disciplinary energy, transport networks specialist and engineering services provider, spanning the design, engineering, installation, maintenance, and crisis…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Grant Walker Engineering	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	81 contacts →
	Exact match “Grant Walker Engineering specialise in the complete installation of Electrical and Mechanical systems across all work sectors including quality office developments, commercial and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	ETA Projects LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	62 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Phoenix ME	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	33 contacts →
	Exact match “We stand as a well-established industry leader, specialising in the design, installation, and commissioning of mechanical and electrical systems across diverse sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Navitas Engineering LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	27 contacts →
	Exact match “Navitas Engineering provides electrical engineering consultancy services to the railway and electricity supply industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	M.P.E. Power System Consultants	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	25 contacts →
	Exact match “M.P.E.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Deerns UK	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	24 contacts →
	Exact match “An independent mechanical and electrical engineering firm which operates worldwide, Deerns has the capacity to make ideas a reality.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Eltrade Electrical LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1-10	23 contacts →
	Exact match “ELTRADE ELECTRICAL LTD is a civil engineering company” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	UK Power Engineers LTD Ukpe	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	SI Electrical LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match “SI Electrical provide complete electrical solutions and are renowned for our expertise in lighting and controls.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Power Transmission & Distribution	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match “PaE T&D is a Power Transmission and Distribution Design Consultancy” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Cole Group	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “At COLE Group, we specialize in delivering outstanding electrical solutions for both new build and refurbishment projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Concepto Solutions LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “Concepto AV is an electrical-led technology company delivering high-quality electrical installations across residential and commercial projects in London.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	SPL Construct LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Zeus Electrical Constructions	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “ZEUS is engaged in studies and electrical installations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Utility Results LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “Utility Infrastructure Planning, Utility Project Management, Utility Design & Utility & Energy Procurement Specialists” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Faircloth Construction Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Rail Power Solutions	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1-10	9 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Sehv Services Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “LV and HV Electrical Consultancy and Engineering Services to Renewable Energy Markets and Industrial and Commercial Sectors” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	R P Bray Electrical Contractors	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	6 contacts →
	Exact match “R P Bray carry out electrical installation works to domestic, commercial and industrial projects, complete with design and testing facilities, specializing in the hotel, leisure…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Total Electric Solutions LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	6 contacts →
	Exact match “Established in 2006, Total Electric Solutions Ltd provides a complete electrical package from the design & tendering process through to the final installation & after care.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	TH Electrical & Mechanical LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	6 contacts →
	Exact match “TH ELECTRICAL & MECHANICAL LTD is a construction company based in London and operating throughout London and the South East, delivering the full range of mechanical, electrical &…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Harrison HOW LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1-10	6 contacts →
	Exact match “Harrison How Limited are situated in the heart of London and have been serving clients since 1939.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Amber Electrical Services LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “As a successful, progressive company, we continually strive to identify project risks, manage agreed performance levels and optimise cost/revenue budgets for all our clients.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “power distribution engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 158 power distribution engineering companies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 1,161 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Power distribution engineering companies based in London, United Kingdom at a glance

As of Sep 17, 2026

36.7%Verified-email coverage

20.0Average contacts per company

1-10Median size (employees)

Sep 17, 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 158 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 London, United Kingdom whose business descriptions match “power distribution engineering companies” 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 1,161 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 September 17, 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.

Power distribution engineering companies by metro in the United Kingdom

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 “power distribution engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many power distribution engineering companies are there based in London, United Kingdom?

RevenueBase identified 158 company matches for power distribution engineering companies associated with London, United Kingdom as of September 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?

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

Which city in the United Kingdom has the most power distribution engineering companies?

London leads the United Kingdom with 158 company records, followed by Manchester (51) and Nottingham (32).

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 1,161 professional contacts with verified work emails tracked across these 158 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 September 17, 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.