Company lists · Data refreshed September 2026

Top 25 Electrical transmission equipment suppliers based in the United Kingdom

Name: Electrical transmission equipment suppliers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 219 companies tracked

RevenueBase identified 219 electrical transmission equipment suppliers headquartered in the United Kingdom as of September 2026 and tracks 4,306 professional contacts across them, including 1,441 with verified work emails. London is the largest hub.

This list covers electrical transmission equipment suppliers 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 19, 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 19, 2026 86% judged on-target in blind review

219Companies

4,306Contacts tracked

1,441Verified emails

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The 25 largest electrical transmission equipment suppliers based in the United Kingdom

Ranked by team size

Top 25 of 219 electrical transmission equipment suppliers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical transmission equipment suppliers: 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	Lucy Electric	Partial evidence	Thame, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,238 contacts →
	Partial evidence “Lucy Electric is a leader in secondary power distribution solutions with over 100 years’ industry experience.” Source: RevenueBase Database · checked Sep 19, 2026
2	Brush Group	Indirect evidence	Loughborough, United KingdomHQ checked Sep 19, 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 19, 2026
3	AF Switchgear	Indirect evidence	Sutton-in-ashfield, United KingdomHQ checked Sep 19, 2026	201-500	117 contacts →
	Indirect evidence “AF Switchgear is one of the UK's largest switchgear manufacturers and set the standard for LV Switchgear and Power Distribution.” Source: RevenueBase Database · checked Sep 19, 2026
4	GTDS	Indirect evidence	Hill, United KingdomHQ checked Sep 19, 2026	51-200	82 contacts →
	Indirect evidence “GTDS was established in July 2004 to provide specialist installation and commissioning services to the major manufacturers, National Grid and the Distribution Network Operators…” Source: RevenueBase Database · checked Sep 19, 2026
5	Lloyd Morris Electrical LTD	Partial evidence	Wrexham, United KingdomHQ checked Sep 19, 2026	51-200	47 contacts →
	Partial evidence “Lloyd Morris Electrical Limited is a company of Electrical Engineers, specialising in the design, manufacture and installation of Electrical Distribution and Control Systems for…” Source: RevenueBase Database · checked Sep 19, 2026
6	Hawker Siddeley Switchgear LTD	Indirect evidence	Blackwood, United KingdomHQ checked Sep 19, 2026	201-500	46 contacts →
	Indirect evidence “Hawker Siddeley Switchgear Ltd is a major national and international manufacturer of a range of indoor and outdoor medium voltage distribution and transit switchgear.” Source: RevenueBase Database · checked Sep 19, 2026
7	Acrastyle Limited	Indirect evidence	Ulverston, United KingdomHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “Acrastyle Limited (UK) is a resource-rich engineering company that designs, manufactures, tests, installs, commissions, and maintains high-voltage sub-station protection and…” Source: RevenueBase Database · checked Sep 19, 2026
8	Slaters Electricals	Strong evidence	Tollbridge Road, United KingdomHQ checked Sep 19, 2026	51-200	42 contacts →
	Strong evidence “Established for over 100 years, Slaters Electricals Ltd are experts in LV and HV power distribution equipment, installation and support solutions.” Source: RevenueBase Database · checked Sep 19, 2026
9	Jointing Tech	Partial evidence	Woking, United KingdomHQ checked Sep 19, 2026	51-200	41 contacts →
	Partial evidence “Jointing Tech is leading UK distributor of specialist power cables and accessories, supporting the maintenance, development, and connection of the UK’s electrical infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
10	Morris Line Engineering LTD	Indirect evidence	Bridgend Industrial Estate, United KingdomHQ checked Sep 19, 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 19, 2026
11	Bowers Electricals LTD	Strong evidence	Heanor, United KingdomHQ checked Sep 19, 2026	11-50	38 contacts →
	Strong evidence “Bowers Electricals are in the 70th year of powering industry and one of the worlds biggest designers and suppliers of energy saving EU Compliant Tier 1 and Tier 2 Distribution and…” Source: RevenueBase Database · checked Sep 19, 2026
12	Lewden	Partial evidence	Braintree, United KingdomHQ checked Sep 19, 2026	51-200	38 contacts →
	Partial evidence “Lewden, a subsidiary of Palazzoli S.p.A, offers electrical power distribution solutions for industrial, construction, commercial, domestic and event sectors.” Source: RevenueBase Database · checked Sep 19, 2026
13	EDS HV Group	Indirect evidence	Haslingden, United KingdomHQ checked Sep 19, 2026	51-200	37 contacts →
	Indirect evidence “High Voltage Engineering Solutions, from conceptual design, through to installation and O&M.” Source: RevenueBase Database · checked Sep 19, 2026
14	Lagan Energy Engineering LTD	Partial evidence	Omagh, United KingdomHQ checked Sep 19, 2026	51-200	36 contacts →
	Partial evidence “Lagan Energy Engineering Ltd provides quality assured electrical engineering, contracting and consultancy services to customers on various continents.” Source: RevenueBase Database · checked Sep 19, 2026
15	PLP GB	Indirect evidence	Andover, United KingdomHQ checked Sep 19, 2026	51-200	33 contacts →
	Indirect evidence “Preformed Line Products (GB) Limited was established in 1957 and is a wholly owned subsidiary of Preformed Line Products Company of Cleveland, Ohio, USA.” Source: RevenueBase Database · checked Sep 19, 2026
16	Industrial Switchgear Services LTD	Partial evidence	Hyde, United KingdomHQ checked Sep 19, 2026	51-200	30 contacts →
	Partial 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 19, 2026
17	JJ Loughran	Partial evidence	Co.tyrone, United KingdomHQ checked Sep 19, 2026	51-200	30 contacts →
	Partial evidence “JJ Loughran is an Electrical Engineering & Supply Company based in Cookstown N.Ireland.” Source: RevenueBase Database · checked Sep 19, 2026
18	CBS Products KT , LTD	Strong evidence	Oakham, United KingdomHQ checked Sep 19, 2026	11-50	29 contacts →
	Strong evidence “CBS Products (KT), Ltd are at the forefront of cabling technology as designers and manufacturers of innovative installation equipment for HV Transmission towers, LV Distribution…” Source: RevenueBase Database · checked Sep 19, 2026
19	B&s Group LTD	Indirect evidence	Chester, United KingdomHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “B&S Group is an innovative, high growth engineering business delivering full-service solutions for power and renewable energy networks.” Source: RevenueBase Database · checked Sep 19, 2026
20	Energi Cable Services LTD	Partial evidence	Laindon, United KingdomHQ checked Sep 19, 2026	11-50	29 contacts →
	Partial evidence “ECS specialises in the design, supply and installation of HV, cables and accessories for the UK electricity supply sector and, increasingly, for a number of overseas markets.” Source: RevenueBase Database · checked Sep 19, 2026
21	TEC Electric Motors	Partial evidence	Hartlebury, United KingdomHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial evidence “TEC Electric Motors holds the largest stock of electric motors in the UK, alongside a comprehensive range of gearboxes and inverter drives.” Source: RevenueBase Database · checked Sep 19, 2026
22	Rosh Engineering LTD	Indirect evidence	Blaydon On Tyne, United KingdomHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “Power transformer repair, refurbishment, supply & installation and enhancement throughout the UK and northern Europe.” Source: RevenueBase Database · checked Sep 19, 2026
23	NCE Switchgear	Partial evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	51-200	28 contacts →
	Partial evidence “NCE Switchgear are electrical switchgear manufacturers that offer the complete electrical solution whether it be motor control, instrumentation or distribution.” Source: RevenueBase Database · checked Sep 19, 2026
24	RSE Control Systems TCS	Indirect evidence	Morley, United KingdomHQ checked Sep 19, 2026	51-200	27 contacts →
	Indirect evidence “With our extensive range of switchgear and control products, RSE Control Systems (TCS) can meet the complex and varying needs of customers.” Source: RevenueBase Database · checked Sep 19, 2026
25	Instrument & Control Services ICS LTD	Partial evidence	Stoke On Trent, United KingdomHQ checked Sep 19, 2026	51-200	26 contacts →
	Partial evidence “At ICS, part of United Infrastructure Group, we power the future with innovative, high-voltage electrical solutions.” Source: RevenueBase Database · checked Sep 19, 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 transmission equipment suppliers. 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 transmission equipment suppliers.
Partial evidence: Its own public description names part of electrical transmission equipment suppliers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical transmission equipment suppliers. 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 219 electrical transmission equipment suppliers based in the United Kingdom

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Electrical transmission equipment suppliers based in the United Kingdom at a glance

As of Sep 19, 2026

33.5%Verified-email coverage

19.7Average contacts per company

11-50Median size (employees)

5.0%Largest-city concentration · London

Sep 19, 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 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 219 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 transmission equipment suppliers, 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 “electrical transmission equipment suppliers”. 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 transmission equipment suppliers), 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 transmission equipment suppliers, 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, 1,441 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 19, 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 electrical transmission equipment suppliers, 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 transmission equipment suppliers are there based in the United Kingdom?

RevenueBase identified 219 electrical transmission equipment suppliers 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?

Lucy Electric, headquartered in Thame, tops this list with the largest team on record.

Which city has the most electrical transmission equipment suppliers?

London leads with 11 headquartered companies, followed by Manchester (8) and Leeds (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 1,441 verified decision-maker contacts tracked across these 219 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 19, 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.