Company lists · Data refreshed September 2026

Top 23 Appliance wiring harness manufacturers based in the United Kingdom

RevenueBase identified 47 appliance wiring harness manufacturers headquartered in the United Kingdom as of September 2026 and tracks 2,188 professional contacts across them, including 747 with verified work emails. Boston is the largest hub.

This list covers appliance wiring harness 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
47Companies
2,188Contacts tracked
747Verified emails
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The 23 largest appliance wiring harness manufacturers based in the United Kingdom

Ranked by team size
Top 23 of 47 appliance wiring harness 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 appliance wiring harness 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceNewcastle-under-lyme, United KingdomHQ checked Sep 30, 202610001+1,739 contacts →

Strong evidence

“SEWS-E, Sumitomo Electric Wiring Systems (Europe) manufactures and processes wiring harnesses and related parts in countries such as Hungary, Romania, Morocco and Egypt.”

Source: RevenueBase Database · checked Sep 30, 2026
2Strong evidenceBolton, United KingdomHQ checked Sep 30, 202651-200126 contacts →

Strong evidence

“Assembly Solutions Ltd (for short, ASL) is a subcontract manufacturer of cable assemblies, wiring harnesses and control panels which supplies manufacturers including Ford, Siemens…”

Source: RevenueBase Database · checked Sep 30, 2026
3Strong evidenceRisley, United KingdomHQ checked Sep 30, 2026501-1,00035 contacts →

Strong evidence

“Ionix Systems is a specialist designer and manufacturer of wiring harness and woven systems, providing interconnection solutions for aerospace, defence, power generation and other…”

Source: RevenueBase Database · checked Sep 30, 2026
4Strong evidencePortishead, United KingdomHQ checked Sep 30, 202611-5033 contacts →

Strong evidence

“Q5D is an innovative technology company developing tools to automate the production of wiring harnesses for the consumer white goods and electronics, through to the automotive and…”

Source: RevenueBase Database · checked Sep 30, 2026
5Partial evidenceFife, United KingdomHQ checked Sep 30, 2026501-1,00032 contacts →

Partial evidence

“Excel Assemblies is a supplier of Cable Harnesses, Sub Assemblies and Technical Services to the Agricultural, Automotive, Construction, Mass Transit and Material Handling market…”

Source: RevenueBase Database · checked Sep 30, 2026
6Strong evidenceBoston, United KingdomHQ checked Sep 30, 202651-20026 contacts →

Strong evidence

“Parkinson Harness Technology manufacture bespoke electrical solutions including wiring harnesses, control panels, battery/power leads, PCB’s, and control systems.”

Source: RevenueBase Database · checked Sep 30, 2026
7Partial evidenceSwindon, United KingdomHQ checked Sep 30, 202611-5020 contacts →

Partial evidence

“Westwire Harnessing are specialists in design, development and manufacturing of wire harnessing for transport, aerospace and military.”

Source: RevenueBase Database · checked Sep 30, 2026
8Partial evidenceBellshill, United KingdomHQ checked Sep 30, 202651-20018 contacts →

Partial evidence

“Since 2002 Link Cable Assemblies have been supplying our clients with wire harnesses, looms, control panels, electrical components and cable assemblies from our manufacturing head…”

Source: RevenueBase Database · checked Sep 30, 2026
9Strong evidenceSwansea, United KingdomHQ checked Sep 30, 202651-20017 contacts →

Strong evidence

“SIC (Swansea Industrial Components) has been making wiring harnesses and cable assemblies for over 50 years since it was founded in 1964.”

Source: RevenueBase Database · checked Sep 30, 2026
10Strong evidence136 Rhosnesni Lane, United KingdomHQ checked Sep 30, 202611-5010 contacts →

Strong evidence

“Pinnacle Harnesses are a leading Wire Harnesses manufacturer that deliver bespoke and exact solutions to our valued customers.”

Source: RevenueBase Database · checked Sep 30, 2026
11Strong evidenceNottingham, United KingdomHQ checked Sep 30, 202651-2007 contacts →

Strong evidence

“World leading manufacturer & supplier of classic car wiring harnesses and an experienced original equipment manufacturer (OEM).”

Source: RevenueBase Database · checked Sep 30, 2026
12Strong evidenceWrexham, United KingdomHQ checked Sep 30, 202611-506 contacts →

Strong evidence

“Hayakawa specialises in the bespoke design and manufacture of wiring, cable assemblies and lighting cables.”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceSouthampton, United KingdomHQ checked Sep 30, 202611-506 contacts →

Indirect evidence

“St Cross Electronics has been manufacturing very high-quality bespoke cable assemblies of all complexities at our fully ISO and also UL approved facility in Southampton for over…”

Source: RevenueBase Database · checked Sep 30, 2026
14Strong evidenceHull, United KingdomHQ checked Sep 30, 20261-106 contacts →

Strong evidence

“At Solutions Are Looming Ltd, we use state-of-the-art machinery to manufacture a wide range of wiring solutions for bespoke requirements, including cable looms and cable harnesses.”

Source: RevenueBase Database · checked Sep 30, 2026
15Indirect evidenceWellingborough, United KingdomHQ checked Sep 30, 202611-505 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
16Strong evidenceCongleton, United KingdomHQ checked Sep 30, 202611-505 contacts →

Strong evidence

“Wireco have built an impeccable reputation as cable harness assembly specialists who design and manufacture wire harnesses and wiring looms as well as offering a flexible…”

Source: RevenueBase Database · checked Sep 30, 2026
17Strong evidenceHull, United KingdomHQ checked Sep 30, 202611-505 contacts →

Strong evidence

“Cablepoint UK delivers precision-engineered cable assemblies, wiring looms, harnesses and discreet wires - plus full-service box-builds, control panel wiring and over-moulding.”

Source: RevenueBase Database · checked Sep 30, 2026
18Strong evidenceEdenbridge, United KingdomHQ checked Sep 30, 202611-505 contacts →

Strong evidence

“Convert Ltd is a UK based manufacturer of complex cable harnesses, cable assemblies, cable looms, interconnect harnesses & process cable sets.”

Source: RevenueBase Database · checked Sep 30, 2026
19Strong evidenceKineton, United KingdomHQ checked Sep 30, 20261-105 contacts →

Strong evidence

“Project DC was founded to provide superior performance wiring solutions in an industry with limited high quality harness designers and manufacturers.”

Source: RevenueBase Database · checked Sep 30, 2026
20Indirect evidenceCongleton, United KingdomHQ checked Sep 30, 202611-503 contacts →

Indirect evidence

“CLARKE CABLE LIMITED is an electrical/electronic manufacturing company based out of Congleton, United Kingdom.”

Source: RevenueBase Database · checked Sep 30, 2026
21Strong evidenceCaldicot, United KingdomHQ checked Sep 30, 20261-102 contacts →

Strong evidence

“Specialising in bespoke wiring harness design & manufacture for all type of automotive, marine, aviation & aerospace”

Source: RevenueBase Database · checked Sep 30, 2026
22Indirect evidenceElland, United KingdomHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
23Strong evidenceHigh Wycombe, United KingdomHQ checked Sep 30, 20261-101 contacts →

Strong evidence

“Cable assembly, Wire Harness, Electronic and Mechanical Assemblies, Panel Wiring and Box Build, Soldering”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 23 of 47 appliance wiring harness manufacturers based in the United Kingdom

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Appliance wiring harness manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026
34.1%Verified-email coverage
46.6Average contacts per company
11-50Median size (employees)
6.4%Largest-city concentration · Boston
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
18
51-200
5
201-500
1
501-1,000
2
10001+
1

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 47 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 appliance wiring harness 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 “appliance wiring harness 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 appliance wiring harness 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 appliance wiring harness 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, 747 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 appliance wiring harness 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 appliance wiring harness manufacturers are there based in the United Kingdom?

RevenueBase identified 47 appliance wiring harness 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?

Sews-E, headquartered in Newcastle-Under-Lyme, tops this list with the largest team on record.

Which city has the most appliance wiring harness manufacturers?

Boston leads with 3 headquartered companies, followed by Hull (2) and Wrexham (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 747 verified decision-maker contacts tracked across these 47 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.