Company lists · Data refreshed September 2026

Top 25 Assembly manufacturers based in the United Kingdom

Name: Assembly 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 335 companies tracked

RevenueBase identified 335 company matches for assembly manufacturers associated with the United Kingdom as of September 2026 and tracks 19,490 professional contacts across them, including 1,184 with verified work emails. Manchester is the largest hub.

This list covers company matches for assembly manufacturers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 30, 2026 How this list was built

335Companies

19,490Contacts tracked

1,184Verified emails

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The 25 largest assembly manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 335 company matches for assembly manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Rencol Components LTD	Exact match	Bristol, United KingdomHQ recorded Sep 30, 2026	n/a	15,741 contacts →
	Exact match “Following 100 years of successful design and manufacturing experience in plastic and metals, Rencol Components has built a truly global supply chain - rapidly expanding our range…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Nasmyth	Exact match	Exhall, United KingdomHQ recorded Sep 30, 2026	501-1,000	150 contacts →
	Exact match “Nasmyth is a cohesive group of engineering businesses that consistently provides high quality services and products.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	ASL	Exact match	Bolton, United KingdomHQ recorded Sep 30, 2026	51-200	126 contacts →
	Exact match “Assembly Solutions Ltd (for short, ASL) is a subcontract manufacturer of cable assemblies, wiring harnesses and control panels which supplies manufacturers including Ford, Siemens…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	BCW Group	Exact match	Burnley, United KingdomHQ recorded Sep 30, 2026	201-500	76 contacts →
	Exact match “BCW Group is a collection of companies in the manufacturing sector, delivering advanced engineering solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	EC Electronics LTD	Exact match	Basingstoke, United KingdomHQ recorded Sep 30, 2026	201-500	68 contacts →
	Exact match “From local manufacturer to global partner, EC Electronics has been a trusted EMS provider for over 40 years, helping businesses bring products to market with reliability…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Cogent Technology	Exact match	Felixstowe, United KingdomHQ recorded Sep 30, 2026	51-200	57 contacts →
	Exact match “We are Cogent Technology a Contract Electronic Manufacturer.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Phoenix Systems UK LTD	Exact match	Fareham, United KingdomHQ recorded Sep 30, 2026	51-200	56 contacts →
	Exact match “Design - Develop - Manufacture \| Concept to Creation At PSUK, our mission is clear:"To be the first choice Contract Electronics Manufacturer in the UK, by providing exceptional…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Nitronica	Exact match	Ballynahinch, United KingdomHQ recorded Sep 30, 2026	51-200	52 contacts →
	Exact match “Nitronica offer a comprehensive range of electrical and electronic assembly services from our sq.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Tioga Limited	Exact match	Derby, United KingdomHQ recorded Sep 30, 2026	51-200	50 contacts →
	Exact match “Tioga Limited, founded in 1996, has developed into one of the UK's leading privately owned Contract Electronic Manufacturers (CEM), offering a broad spectrum of electronic…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	ZOT Engineering LTD	Exact match	Edinburgh, United KingdomHQ recorded Sep 30, 2026	51-200	47 contacts →
	Exact match “From PCB manufacturing, through sheet metal fabrication to electro-mechanical assembly.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Cornelius Electronics LTD	Exact match	Port Talbot, United KingdomHQ recorded Sep 30, 2026	201-500	44 contacts →
	Exact match “Cornelius Electronics is an AS9100 sub-contract manufacturer supporting OEMs, machine builders and business owners worldwide who have a demand for a reliable, long term…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Martin Precision	Exact match	Lanark, United KingdomHQ recorded Sep 30, 2026	51-200	43 contacts →
	Exact match “Martin Precision serves as a vital link in the supply chain to some of the world’s best-known companies.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Adapt EMS	Exact match	Hitchin, United KingdomHQ recorded Sep 30, 2026	51-200	42 contacts →
	Exact match “ADAPT ems is a UK contract electronics manufacturer providing end-to-end manufacturing services across the product life cycle from design and prototyping to PCB assembly, box…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Densitron	Exact match	Crawley, United KingdomHQ recorded Sep 30, 2026	201-500	41 contacts →
	Exact match “From supplying components, to designing sub-assemblies all the way through to delivering finished hardware and software products, Densitron's mission is to help you provide the…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Note Haddenham LTD	Exact match	Haddenham, United KingdomHQ recorded Sep 30, 2026	51-200	39 contacts →
	Exact match “iPRO is the UK’s leading Global Sourcing and Contract Manufacturing Solutions provider, offering a ‘one-point-of-contact’ for a wide range of bespoke, high quality engineered…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Directech QM Systems LTD	Exact match	Kidderminster, United KingdomHQ recorded Sep 30, 2026	51-200	35 contacts →
	Exact match “Directech QM Systems is a turnkey provider of automation, testing, and manufacturing systems for all industries.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Electronic Assembly Services LTD	Exact match	Ashby De La Zouch, United KingdomHQ recorded Sep 30, 2026	51-200	34 contacts →
	Exact match “Based in Leicestershire, we are one of the UK's leading suppliers of fast turn electronic assembly, and work with many major company's R&D departments to help get new products…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Geometric Manufacturing LTD	Exact match	Tewkesbury, United KingdomHQ recorded Sep 30, 2026	51-200	34 contacts →
	Exact match “Geometric Manufacturing provides a flexible solution to your production requirements.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Tenon Engineering	Exact match	Dorking, United KingdomHQ recorded Sep 30, 2026	11-50	34 contacts →
	Exact match “Tenon Engineering is a leading end-to-end precision manufacturing company providing complex, high spec products for demanding industries.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Milton Keynes Pressings Group	Exact match	Milton Keynes, United KingdomHQ recorded Sep 30, 2026	51-200	31 contacts →
	Exact match “Milton Keynes Pressings Group consists of Milton Keynes Pressings Ltd: Ryeland Toolmakers Ltd and MKP Maine Office Ltd.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Icon Electronics	Exact match	Knaresborough, United KingdomHQ recorded Sep 30, 2026	51-200	31 contacts →
	Exact match “Icon Electronics is a Contract electronic Manufacturer (CeM) based in the heart of the United Kingdom, providing extensive contract electronic manufacturing services including…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Dasis Partners	Exact match	Havant, United KingdomHQ recorded Sep 30, 2026	11-50	29 contacts →
	Exact match “DASIS "Develop And Supply IN-SYNC" offers an alternative and unified manufacturing supply chain option to the UK market.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Bufab UK LTD	Exact match	High Wycombe, United KingdomHQ recorded Sep 30, 2026	1,001-5,000	29 contacts →
	Exact match “Bufab is a leading supplier of components and services to the manufacturing industry worldwide, providing solutions in quality, sourcing and logistics.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	SGA Technologies Limited	Exact match	Saffron Walden, United KingdomHQ recorded Sep 30, 2026	51-200	29 contacts →
	Exact match “When your application demands zero failure, you need a manufacturer you can trust completely.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Norcott Technologies Limited	Exact match	Widnes, United KingdomHQ recorded Sep 30, 2026	51-200	28 contacts →
	Exact match “The Norcott Technologies is a leading supplier of electronic design and manufacturing services.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “assembly manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 335 assembly manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,184 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Assembly manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

6.1%Verified-email coverage

58.2Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · Manchester

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

164

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 335 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “assembly manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,184 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “assembly manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many assembly manufacturers are there based in the United Kingdom?

RevenueBase identified 335 company matches for assembly manufacturers associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Rencol Components LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most assembly manufacturers?

Manchester leads with 10 company records, followed by Birmingham (7) and Bristol (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,184 professional contacts with verified work emails tracked across these 335 companies; direct dials are available where recorded.

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 SmartSearch, 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.