Company lists · Data refreshed September 2026

Top 25 Assembly and packaging companies based in the United Kingdom

Name: Assembly and packaging companies 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 255 companies tracked

RevenueBase identified 255 assembly and packaging companies headquartered in the United Kingdom as of September 2026 and tracks 2,700 professional contacts across them, including 880 with verified work emails. Birmingham is the largest hub.

This list covers assembly and packaging companies 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

255Companies

2,700Contacts tracked

880Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest assembly and packaging companies based in the United Kingdom

Ranked by team size

Top 25 of 255 assembly and packaging companies 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 assembly and packaging companies: 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	WHS Plastics LTD	Indirect evidence	Minworth, United KingdomHQ checked Sep 30, 2026	501-1,000	394 contacts →
	Indirect evidence “WHS Plastics successfully operates in a highly competitive global marketplace, partnering with major international companies in a variety of market segments including automotive…” Source: RevenueBase Database · checked Sep 30, 2026
2	Mailway Packaging Solutions	Indirect evidence	Bradford, United KingdomHQ checked Sep 30, 2026	51-200	100 contacts →
	Indirect evidence “Established in 1977, Mailway is one of the longest established co-packers in the UK.” Source: RevenueBase Database · checked Sep 30, 2026
3	EC Electronics LTD	Indirect evidence	Basingstoke, United KingdomHQ checked Sep 30, 2026	201-500	68 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
4	Chester Medical	Indirect evidence	Wirral, United KingdomHQ checked Sep 30, 2026	51-200	66 contacts →
	Indirect evidence “When it really matters, you can rely on Chester Medical.” Source: RevenueBase Database · checked Sep 30, 2026
5	Cogent Technology	Indirect evidence	Felixstowe, United KingdomHQ checked Sep 30, 2026	51-200	57 contacts →
	Indirect evidence “We are Cogent Technology a Contract Electronic Manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026
6	Phoenix Systems UK LTD	Indirect evidence	Fareham, United KingdomHQ checked Sep 30, 2026	51-200	56 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
7	Nitronica	Partial evidence	Ballynahinch, United KingdomHQ checked Sep 30, 2026	51-200	52 contacts →
	Partial evidence “Nitronica offer a comprehensive range of electrical and electronic assembly services from our sq.” Source: RevenueBase Database · checked Sep 30, 2026
8	Ulma Packaging UK	Partial evidence	Dinnington, United KingdomHQ checked Sep 30, 2026	11-50	47 contacts →
	Partial evidence “ULMA Packaging is the leading packaging machinery supplier, manufacturing packaging equipment and providing world class sales & service support in the UK & Ireland.” Source: RevenueBase Database · checked Sep 30, 2026
9	Partspak	Partial evidence	Snetterton, United KingdomHQ checked Sep 30, 2026	11-50	47 contacts →
	Partial evidence “The PartsPak team are real experts with real experience providing front line support to a broad range of packaging machine brands including Hayssen, Sandiacre, Ilapak, Yamato and…” Source: RevenueBase Database · checked Sep 30, 2026
10	Cornelius Electronics LTD	Indirect evidence	Port Talbot, United KingdomHQ checked Sep 30, 2026	201-500	44 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
11	Wepack LTD	Indirect evidence	Ilkeston, United KingdomHQ checked Sep 30, 2026	11-50	35 contacts →
	Indirect evidence “WePack are an independent contract packing company offering innovative and timely solutions to food and non-food packing challenges.” Source: RevenueBase Database · checked Sep 30, 2026
12	Conway Packing Services LTD Part Of The Conway Group	Partial evidence	Tipton, United KingdomHQ checked Sep 30, 2026	51-200	34 contacts →
	Partial evidence “Founded in 1991, Conway Packing Services Ltd (CPS) is a specialist provider of packaging design, manufacture, logistics, storage and fabrication solutions.” Source: RevenueBase Database · checked Sep 30, 2026
13	Geometric Manufacturing LTD	Indirect evidence	Tewkesbury, United KingdomHQ checked Sep 30, 2026	51-200	34 contacts →
	Indirect evidence “Geometric Manufacturing provides a flexible solution to your production requirements.” Source: RevenueBase Database · checked Sep 30, 2026
14	Endoline Machinery LTD	Indirect evidence	Biggleswade, United KingdomHQ checked Sep 30, 2026	11-50	30 contacts →
	Indirect evidence “Endoline offers modular packing line solutions, ranging from semi-automatic case erectors and sealers through to complete case packing lines integrating case or tray erection…” Source: RevenueBase Database · checked Sep 30, 2026
15	Fermionx Manufacturing	Indirect evidence	Worthing, United KingdomHQ checked Sep 30, 2026	51-200	30 contacts →
	Indirect evidence “FermionX Manufacturing is a complete product solution partner, dedicated to making better products.” Source: RevenueBase Database · checked Sep 30, 2026
16	M-Tek Assembly LTD	Indirect evidence	Reading, United KingdomHQ checked Sep 30, 2026	11-50	26 contacts →
	Indirect evidence “M-Tek is headquartered in Reading, UK, and was founded in 1996.” Source: RevenueBase Database · checked Sep 30, 2026
17	Cameron Price Limited	Partial evidence	Birmingham, United KingdomHQ checked Sep 30, 2026	51-200	25 contacts →
	Partial evidence “Manufacturing your next market leading product in the heart of the UK Cameron Price is recognised as a leading design, injection moulding and full assembly and test company.” Source: RevenueBase Database · checked Sep 30, 2026
18	J-Teq EMS Solutions LTD	Partial evidence	Livingston, United KingdomHQ checked Sep 30, 2026	11-50	24 contacts →
	Partial evidence “J-TEQ EMS Solutions Ltd based in Kirkton Campus Livingston EH54 7DQ are a contract manufacturer specialising in Electronic Assembly Our services include… Higher Level…” Source: RevenueBase Database · checked Sep 30, 2026
19	CEL Group	Indirect evidence	Telford, United KingdomHQ checked Sep 30, 2026	51-200	21 contacts →
	Indirect evidence “Improve your pricing, improve your products and improve your performance with proven sub-contract manufacturing partners CEL Group.” Source: RevenueBase Database · checked Sep 30, 2026
20	United Aerospace LTD	Indirect evidence	Pembroke Dock, United KingdomHQ checked Sep 30, 2026	11-50	21 contacts →
	Indirect evidence “We are Designers, Manufacturers and Finishes of Composite Components for any industry.” Source: RevenueBase Database · checked Sep 30, 2026
21	CME Automation Systems LTD	Partial evidence	Chard, United KingdomHQ checked Sep 30, 2026	51-200	21 contacts →
	Partial evidence “CME Automation Systems Ltd has a proven track record in the design and delivery of high quality bespoke and generic packaging equipment and spare parts that ensure operational…” Source: RevenueBase Database · checked Sep 30, 2026
22	Quick Circuits LTD	Partial evidence	Reading, United KingdomHQ checked Sep 30, 2026	11-50	20 contacts →
	Partial evidence “PCB MANUFACTURE & ASSEMBLY - UNDER THE SAME ROOF Very few companies in the UK can claim that they have the facilities to engineer and manufacture the bare PCB and have the…” Source: RevenueBase Database · checked Sep 30, 2026
23	Smurfit Westrock Packaging Machinery LTD	Partial evidence	Gorleston, United KingdomHQ checked Sep 30, 2026	51-200	20 contacts →
	Partial evidence “Linkx Systems has been acquired by Smurfit Westrock (NYSE:SW) in 2019, a leading provider of differentiated paper and packaging solutions, expanding its portfolio of automated…” Source: RevenueBase Database · checked Sep 30, 2026
24	Assembly And Packaging Services LTD	Partial evidence	Blyth, United KingdomHQ checked Sep 30, 2026	201-500	19 contacts →
	Partial evidence “Our services include Hand Assembly, Gift Packing, Sampling and Direct Mail, Blister Packs, Quality Rework, FSDU filling and Re-Packing.” Source: RevenueBase Database · checked Sep 30, 2026
25	Jacob White Packaging LTD	Partial evidence	Dartford, United KingdomHQ checked Sep 30, 2026	11-50	18 contacts →
	Partial evidence “Jacob White are one of the oldest Packaging Machinery Suppliers in the world, having been established in 1911.” 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: assembly and packaging companies. 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 assembly and packaging companies.
Partial evidence: Its own public description names part of assembly and packaging companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name assembly and packaging companies. 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 255 assembly and packaging companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 880 reachable decision-makers.

Free signup · no credit card

View the full list →

Assembly and packaging companies based in the United Kingdom at a glance

As of Sep 30, 2026

32.6%Verified-email coverage

10.6Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Birmingham

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

128

51-200

201-500

501-1,000

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 255 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 assembly and packaging companies, 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 “assembly and packaging companies”. 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 assembly and packaging companies), 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 assembly and packaging companies, 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, 880 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 assembly and packaging companies, 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 assembly and packaging companies are there based in the United Kingdom?

RevenueBase identified 255 assembly and packaging companies 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?

WHS Plastics LTD, headquartered in Birmingham, tops this list with the largest team on record.

Which city has the most assembly and packaging companies?

Birmingham leads with 4 headquartered companies, followed by Coventry (4) and Reading (4).

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 880 verified decision-maker contacts tracked across these 255 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.

Ready to reach these companies? Verified emails and direct dials for all 255 assembly and packaging companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Assembly and packaging companies by geography

Browse the directory

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.