Company lists · Data refreshed September 2026

Top 25 Power distribution companies based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 58 companies tracked

RevenueBase identified 58 power distribution companies headquartered in the United Kingdom as of September 2026 and tracks 34,256 professional contacts across them, including 15,403 with verified work emails. London is the largest hub.

This list covers power distribution companies headquartered in the 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 17, 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 17, 2026 86% judged on-target in blind review

58Companies

34,256Contacts tracked

15,403Verified emails

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The 25 largest power distribution companies based in the United Kingdom

Ranked by team size

Top 25 of 58 power distribution companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to power distribution companies: 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	National Grid	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	10001+	24,403 contacts →
	Partial evidence “We power the lives of millions of people across Britain, New York and Massachusetts, moving energy from where it’s made to the communities that need it, every single day.” Source: RevenueBase Database · checked Sep 17, 2026
2	UK Power Networks	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	5,001-10,000	2,949 contacts →
	Strong evidence “UK Power Networks is a Distribution Network Operator providing power to a quarter of the UK's population.” Source: RevenueBase Database · checked Sep 17, 2026
3	SP Energy Networks	Indirect evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,523 contacts →
	Indirect evidence “We transmit, distribute and connect electricity to and from 3.5 million homes and businesses over our network, 24 hours a day, every day of the year.” Source: RevenueBase Database · checked Sep 17, 2026
4	SP Electricity North West	Partial evidence	North West England, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,322 contacts →
	Partial evidence “We own and operate the North West's electricity distribution network.” Source: RevenueBase Database · checked Sep 17, 2026
5	Scottish And Southern Electricity Networks	Indirect evidence	Perth, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,109 contacts →
	Indirect evidence “We're responsible for maintaining the electricity networks supplying over 3.9 million homes and businesses across central southern England and north of the Central Belt of…” Source: RevenueBase Database · checked Sep 17, 2026
6	NIE Networks	Indirect evidence	Belfast, United KingdomHQ checked Sep 17, 2026	1,001-5,000	723 contacts →
	Indirect evidence “NIE Networks is responsible for the safe, secure and reliable supply of electricity to homes, farms and businesses across Northern Ireland.” Source: RevenueBase Database · checked Sep 17, 2026
7	Freedom	Partial evidence	Leeds, United KingdomHQ checked Sep 17, 2026	1,001-5,000	664 contacts →
	Partial evidence “Freedom is a leading provider of facilities and power engineering services.” Source: RevenueBase Database · checked Sep 17, 2026
8	Brush Group	Indirect evidence	Loughborough, United KingdomHQ checked Sep 17, 2026	501-1,000	367 contacts →
	Indirect evidence “We support the global drive to net zero with innovative, engineered solutions that address grid resilience and systems challenges, facilitate electrification of transport and…” Source: RevenueBase Database · checked Sep 17, 2026
9	ESP Utilities Group LTD	Indirect evidence	Leatherhead, United KingdomHQ checked Sep 17, 2026	51-200	136 contacts →
	Indirect evidence “ESP Utilities Group Ltd is licensed to operate gas and electricity networks by the industry regulator Ofgem and has helped thousands across the country to make the connection.” Source: RevenueBase Database · checked Sep 17, 2026
10	Excalon LTD	Indirect evidence	Salford, United KingdomHQ checked Sep 17, 2026	201-500	108 contacts →
	Indirect evidence “Excalon is one of the Britain’s leading UK Electrical Utility Service Providers.” Source: RevenueBase Database · checked Sep 17, 2026
11	Rock Power Connections LTD	Partial evidence	Bromsgrove, United KingdomHQ checked Sep 17, 2026	51-200	105 contacts →
	Partial evidence “Rock Power Connections are experts in electrical connections with a proven track record of quality and safety.” Source: RevenueBase Database · checked Sep 17, 2026
12	Avidety	Indirect evidence	Sittingbourne, United KingdomHQ checked Sep 17, 2026	51-200	56 contacts →
	Indirect evidence “Avidety specialise in the construction and maintenance of overhead and underground electricity networks.” Source: RevenueBase Database · checked Sep 17, 2026
13	Morris Line Engineering LTD	Indirect evidence	Bridgend Industrial Estate, United KingdomHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “MLE was established in 1976 to provide specialist design & manufacturing services for 12kV – 145kV overhead line disconnectors & switches.” Source: RevenueBase Database · checked Sep 17, 2026
14	Industrial Switchgear Services LTD	Strong evidence	Hyde, United KingdomHQ checked Sep 17, 2026	51-200	30 contacts →
	Strong evidence “ISS Ltd are a HV/LV Power Engineering company operating nationwide, undertaking Turnkey Electrical Distribution Projects and Site Service activities, including installation…” Source: RevenueBase Database · checked Sep 17, 2026
15	Power Engineering Services	Indirect evidence	Wortley, United KingdomHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Unique in its operations, PES engineers substation equipment at its Leeds-based production facility, providing turnkey private network installation, independent contestable…” Source: RevenueBase Database · checked Sep 17, 2026
16	Grid Team Services LTD	Partial evidence	Maghera, United KingdomHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Grid Team Services efficiently constructs and installs quality end-to-end electrical transmission and distribution systems.” Source: RevenueBase Database · checked Sep 17, 2026
17	Lucy Electric UK Limited	Indirect evidence	Oxford, United KingdomHQ checked Sep 17, 2026	51-200	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Oakes Power Services LTD	Indirect evidence	Chatham, United KingdomHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “Experts in electrical infrastructure for engineering & construction sectors.” Source: RevenueBase Database · checked Sep 17, 2026
19	EME Power Systems Limited	Strong evidence	Sleaford, United KingdomHQ checked Sep 17, 2026	11-50	9 contacts →
	Strong evidence “EME Power Systems Limited is a leading national provider of power distribution services to business and industry.” Source: RevenueBase Database · checked Sep 17, 2026
20	Power Service Installations LTD	Partial evidence	Redditch, United KingdomHQ checked Sep 17, 2026	11-50	5 contacts →
	Partial evidence “Power Service Installations (PSI) offer a full spectrum of services to keep your High Voltage and Low Voltage systems running.” Source: RevenueBase Database · checked Sep 17, 2026
21	ETI Scotland Limited	Indirect evidence	Clydebank, United KingdomHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “With over 20 years of experience in the electrical industry, ETI Scotland has built a strong reputation for delivering reliable, professional, and fully compliant electrical…” Source: RevenueBase Database · checked Sep 17, 2026
22	Scotts	Indirect evidence	Belfast, United KingdomHQ checked Sep 17, 2026	11-50	3 contacts →
	Indirect evidence “We’re proud of our heritage, our skills, our knowledge and our desire to offer the best service to our clients.” Source: RevenueBase Database · checked Sep 17, 2026
23	Webster-Wilkinson LTD	Partial evidence	Telford, United KingdomHQ checked Sep 17, 2026	11-50	3 contacts →
	Partial evidence “For over 50 years, Webster-Wilkinson have designed, manufactured and supplied a comprehensive range of Transformer Components to the Transmission & Distribution marketplace – both…” Source: RevenueBase Database · checked Sep 17, 2026
24	Positive Solutions Electrical LTD	Indirect evidence	Harlow, United KingdomHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “POSITIVE SOLUTIONS ELECTRICAL LTD is an utilities company based out of 4 TOLLSWORTH WAY PUCKERIDGE, NR WARE, United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
25	Flux Energy LTD	Partial evidence	Larne, United KingdomHQ checked Sep 17, 2026	1-10	1 contacts →
	Partial evidence “Based in Northern Ireland, Flux Energy have extensive experience in the design, construction, testing, operation and maintenance of electrical distribution systems from 415V up to…” Source: RevenueBase Database · checked Sep 17, 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: power distribution companies. 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 power distribution companies.
Partial evidence: Its own public description names part of power distribution companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power distribution companies. 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 58 power distribution companies based in the United Kingdom

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Power distribution companies based in the United Kingdom at a glance

As of Sep 17, 2026

45.0%Verified-email coverage

590.6Average contacts per company

11-50Median size (employees)

12.1%Largest-city concentration · London

Sep 17, 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

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 58 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 power distribution companies, 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 the United Kingdom whose own description of what they do matches “power distribution companies”. 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 power distribution companies), 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 power distribution companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 15,403 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 17, 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 power distribution companies, 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 power distribution companies are there based in the United Kingdom?

RevenueBase identified 58 power distribution companies headquartered in the 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?

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

Which city has the most power distribution companies?

London leads with 7 headquartered companies, followed by Leeds (3) and Belfast (2).

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 15,403 verified decision-maker contacts tracked across these 58 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 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 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.