Company lists · Data refreshed September 2026

Top 21 High voltage connector suppliers based in the United Kingdom

RevenueBase identified 33 high voltage connector suppliers headquartered in the United Kingdom as of September 2026 and tracks 419 professional contacts across them, including 187 with verified work emails. Liverpool is the largest hub.

This list covers high voltage connector 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 20, 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 20, 2026 86% judged on-target in blind review
33Companies
419Contacts tracked
187Verified emails
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The 21 largest high voltage connector suppliers based in the United Kingdom

Ranked by team size
Top 21 of 33 high voltage connector suppliers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to high voltage connector 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBromsgrove, United KingdomHQ checked Sep 20, 202651-200105 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 20, 2026
2Partial evidenceWoking, United KingdomHQ checked Sep 20, 202651-20041 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 20, 2026
3Indirect evidenceAndover, United KingdomHQ checked Sep 20, 202651-20035 contacts →

Indirect evidence

“SMI's 'fit and forget' cable systems form the central nervous systems of critical infrastructure operating in hostile environments, including naval ships, submarines, aircraft…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceLaindon, United KingdomHQ checked Sep 20, 202611-5029 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 20, 2026
5Strong evidenceStoke On Trent, United KingdomHQ checked Sep 20, 202651-20026 contacts →

Strong evidence

“At ICS, part of United Infrastructure Group, we power the future with innovative, high-voltage electrical solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
6Strong evidenceElland, United KingdomHQ checked Sep 20, 202651-20019 contacts →

Strong evidence

“If you’re looking for an experienced high voltage power contractor, with a highly-skilled team of multi-disciplined engineers, you’ve found it!”

Source: RevenueBase Database · checked Sep 20, 2026
7Strong evidenceWinchester, United KingdomHQ checked Sep 20, 202611-5015 contacts →

Strong evidence

“PSS POWER ENGINEERING LTD is a high-voltage electrical engineering company based in South East England, United Kingdom.”

Source: RevenueBase Database · checked Sep 20, 2026
8Strong evidenceHorsham, United KingdomHQ checked Sep 20, 202651-20014 contacts →

Strong evidence

“Lane Electronics is part of the Lodge Group which includes high reliability, circular and military connector manufacturer Weald Electronics.”

Source: RevenueBase Database · checked Sep 20, 2026
9Strong evidenceBirmingham, United KingdomHQ checked Sep 20, 202611-5014 contacts →

Strong evidence

“Central Power Ltd is a High Voltage power engineering company, specialising in the design and construction of electrical power infrastructure for high voltage customers and…”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceStoke-on-trent, United KingdomHQ checked Sep 20, 202611-5014 contacts →

Partial evidence

“Design, Manufacture & Supply of electrical insulators, insulator hardware, conductor accessories & medium voltage overhead switchgear.”

Source: RevenueBase Database · checked Sep 20, 2026
11Strong evidenceKirkcaldy, United KingdomHQ checked Sep 20, 202611-5011 contacts →

Strong evidence

“TEN 47 are a supplier of high quality circular electrical connectors, interconnect assembly and cable protection solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
12Strong evidenceAldridge, United KingdomHQ checked Sep 20, 202611-5010 contacts →

Strong evidence

“highly experienced high and low voltage connections provider.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSleaford, United KingdomHQ checked Sep 20, 202611-509 contacts →

Indirect evidence

“EME Power Systems Limited is a leading national provider of power distribution services to business and industry.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceAldermaston, United KingdomHQ checked Sep 20, 202611-508 contacts →

Strong evidence

“Experts in the installation, maintenance and commissioning of equipment within the high voltage industry.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceWellingborough, United KingdomHQ checked Sep 20, 202611-507 contacts →

Indirect evidence

“EDAC has been designing and manufacturing interconnect products for over 50 years.”

Source: RevenueBase Database · checked Sep 20, 2026
16Strong evidenceSwindon, United KingdomHQ checked Sep 20, 202611-507 contacts →

Strong evidence

“DNOC is an ICP (Independent Connection Provider) company specialising in high voltage engineering, design, and installation.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceLiverpool, United KingdomHQ checked Sep 20, 202611-507 contacts →

Partial evidence

“Power Connectors for Industry Phase 3’s Industrial Power Connectors product range includes standard and special application, harsh environment connectors for power distribution.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceSwallowfield, United KingdomHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

“We provide you with just about everything you need to safely, reliably and cost effectively shift electricity from one place to another.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceTelford, United KingdomHQ checked Sep 20, 202611-503 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 20, 2026
20Strong evidenceManchester, United KingdomHQ checked Sep 20, 20261-103 contacts →

Strong evidence

“OTSIB is an established electrical engineering consultancy and design contractor, specialising in the design of medium and high voltage power infrastructure, grid connections and…”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceNear Atherstone, United KingdomHQ checked Sep 20, 202611-502 contacts →

Indirect evidence

“Welcome to Overhead Line Fittings Ltd Since its establishment in 1961, Overhead Line Fittings (UK) Limited has worked with National Grid (formerly the CEGB), the DNO’s and their…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 21 of 33 high voltage connector suppliers based in the United Kingdom

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High voltage connector suppliers based in the United Kingdom at a glance

As of Sep 20, 2026
44.6%Verified-email coverage
12.7Average contacts per company
11-50Median size (employees)
6.1%Largest-city concentration · Liverpool
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
6
11-50
18
51-200
7

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 33 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 high voltage connector 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 “high voltage connector 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 high voltage connector 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 high voltage connector 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, 187 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 20, 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 high voltage connector 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 high voltage connector suppliers are there based in the United Kingdom?

RevenueBase identified 33 high voltage connector 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?

Rock Power Connections LTD, headquartered in Bromsgrove, tops this list with the largest team on record.

Which city has the most high voltage connector suppliers?

Liverpool leads with 2 headquartered companies, followed by Winchester (2) and Aldermaston (1).

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 187 verified decision-maker contacts tracked across these 33 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 20, 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.