Company lists · Data refreshed September 2026

Top 25 Transmission line manufacturers based in the United Kingdom

Name: Transmission line manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 69 companies tracked

RevenueBase identified 69 transmission line manufacturers headquartered in the United Kingdom as of September 2026 and tracks 764 professional contacts across them, including 311 with verified work emails. London is the largest hub.

This list covers transmission line manufacturers 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 30, 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 30, 2026 86% judged on-target in blind review

69Companies

764Contacts tracked

311Verified emails

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The 25 largest transmission line manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 69 transmission line manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to transmission line manufacturers: 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	GTDS	Partial evidence	Hill, United KingdomHQ checked Sep 30, 2026	51-200	82 contacts →
	Partial 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 30, 2026
2	AUS LTD	Partial evidence	Clayton West, United KingdomHQ checked Sep 30, 2026	51-200	63 contacts →
	Partial evidence “AUS is a specialist supplier to the electricity distribution and transmission, rail, utility arboricultural, and telecommunications industries.” Source: RevenueBase Database · checked Sep 30, 2026
3	Avidety	Indirect evidence	Sittingbourne, United KingdomHQ checked Sep 30, 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 30, 2026
4	Jointing Tech	Indirect evidence	Woking, United KingdomHQ checked Sep 30, 2026	51-200	41 contacts →
	Indirect 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 30, 2026
5	Morris Line Engineering LTD	Partial evidence	Bridgend Industrial Estate, United KingdomHQ checked Sep 30, 2026	51-200	40 contacts →
	Partial evidence “MLE was established in 1976 to provide specialist design & manufacturing services for 12kV – 145kV overhead line disconnectors & switches.” Source: RevenueBase Database · checked Sep 30, 2026
6	Energyline LTD	Partial evidence	Copgrove, United KingdomHQ checked Sep 30, 2026	51-200	39 contacts →
	Partial evidence “Energyline Ltd is a growing multi-disciplinary consultancy specialising in the design, survey, investigation and consenting of power system projects including overhead lines and…” Source: RevenueBase Database · checked Sep 30, 2026
7	Durkin And Sons Power And Civil Engineers	Indirect evidence	Perivale, United KingdomHQ checked Sep 30, 2026	51-200	35 contacts →
	Indirect evidence “Durkin and Sons have for 40 years been a go-to partner for National Grid, and DNO organisations, who continue to entrust the delivery of large HV & EHV cabling projects to us.” Source: RevenueBase Database · checked Sep 30, 2026
8	PLP GB	Partial evidence	Andover, United KingdomHQ checked Sep 30, 2026	51-200	33 contacts →
	Partial 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 30, 2026
9	CBS Products KT , LTD	Strong evidence	Oakham, United KingdomHQ checked Sep 30, 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 30, 2026
10	Energi Cable Services LTD	Indirect evidence	Laindon, United KingdomHQ checked Sep 30, 2026	11-50	29 contacts →
	Indirect 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 30, 2026
11	TMC LTD	Partial evidence	Maldon, United KingdomHQ checked Sep 30, 2026	11-50	24 contacts →
	Partial evidence “TMC (Transformer Manufacturing Company) is a British manufacturer of transformers, power distribution equipment, and associated wound products, with a heritage dating back to 1981.” Source: RevenueBase Database · checked Sep 30, 2026
12	Neary Construction	Indirect evidence	Wigan, United KingdomHQ checked Sep 30, 2026	51-200	23 contacts →
	Indirect evidence “A civil engineering and construction company specialising in the High Voltage and Extra High Voltage sectors, providing a range of services to clients such as National Grid…” Source: RevenueBase Database · checked Sep 30, 2026
13	Power Engineering Services	Indirect evidence	Wortley, United KingdomHQ checked Sep 30, 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 30, 2026
14	Primary Power Consulting	Indirect evidence	Cheadle, United KingdomHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “Primary Power Consulting is a UK‑based power engineering and project management consultancy specialising in the delivery of complex HV and EHV electricity infrastructure.” Source: RevenueBase Database · checked Sep 30, 2026
15	Grid Team Services LTD	Partial evidence	Maghera, United KingdomHQ checked Sep 30, 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 30, 2026
16	Edes LTD	Partial evidence	Worsley, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Partial evidence “EDES Ltd are a fast-growing electrical and civil engineering design consultancy company, providing specialist overhead line, cabling and installation services to the UK…” Source: RevenueBase Database · checked Sep 30, 2026
17	PSS Power Engineering LTD	Indirect evidence	Winchester, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “PSS POWER ENGINEERING LTD is a high-voltage electrical engineering company based in South East England, United Kingdom.” Source: RevenueBase Database · checked Sep 30, 2026
18	FCE Projects Limited	Indirect evidence	Chester, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “FCE Projects Limited provides power network construction services to utility, industrial and commercial clients across the North West and North Wales.” Source: RevenueBase Database · checked Sep 30, 2026
19	Mosdorfer CCL Systems Limited	Indirect evidence	Market Overton, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “MOSDORFER CCL SYSTEMS LIMITED is an electrical/electronic manufacturing company based out of Thistleton Rd, Market Overton, RUTLAND, United Kingdom.” Source: RevenueBase Database · checked Sep 30, 2026
20	CPD Powerline LTD	Indirect evidence	Loughgall, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Indirect evidence “CPD powerline Ltd is an industry leading specialist in the supply, construction and refurbishment of powerlines across the UK and Europe.” Source: RevenueBase Database · checked Sep 30, 2026
21	Power Transmission & Distribution	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “PaE T&D is a Power Transmission and Distribution Design Consultancy” Source: RevenueBase Database · checked Sep 30, 2026
22	Allied Insulators LTD	Partial evidence	Stoke-on-trent, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “Design, Manufacture & Supply of electrical insulators, insulator hardware, conductor accessories & medium voltage overhead switchgear.” Source: RevenueBase Database · checked Sep 30, 2026
23	Kntc Limited	Indirect evidence	Croydon, United KingdomHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
24	Edsp Solutions	Indirect evidence	Nationwide, United KingdomHQ checked Sep 30, 2026	11-50	6 contacts →
	Indirect evidence “Here at edsp solutions we can design, project manage and deliver all schemes from low voltage through to 132kv with the capabilities to also project manage schemes at 275kv &…” Source: RevenueBase Database · checked Sep 30, 2026
25	Ethical Power Connections	Partial evidence	Bristol Bristol, United KingdomHQ checked Sep 30, 2026	51-200	6 contacts →
	Partial evidence “Ethical Power Connections is an Independent Connection Provider and Electrical Transmission and Distribution Networks Contractor.” Source: RevenueBase Database · checked Sep 30, 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: transmission line manufacturers. 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 transmission line manufacturers.
Partial evidence: Its own public description names part of transmission line manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transmission line manufacturers. 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 69 transmission line manufacturers based in the United Kingdom

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Transmission line manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

40.7%Verified-email coverage

11.1Average contacts per company

11-50Median size (employees)

7.2%Largest-city concentration · London

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 69 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 transmission line manufacturers, 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 “transmission line manufacturers”. 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 transmission line manufacturers), 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 transmission line manufacturers, 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, 311 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 30, 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 transmission line manufacturers, 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 transmission line manufacturers are there based in the United Kingdom?

RevenueBase identified 69 transmission line manufacturers 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?

GTDS, headquartered in Hill, tops this list with the largest team on record.

Which city has the most transmission line manufacturers?

London leads with 5 headquartered companies, followed by Leeds (3) and Andover (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 311 verified decision-maker contacts tracked across these 69 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 30, 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.