Company lists · Data refreshed September 2026

Top 14 Semiconductor assembly companies based in the United Kingdom

Name: Semiconductor assembly 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 17, 2026 44 companies tracked

RevenueBase identified 44 company matches for semiconductor assembly companies associated with the United Kingdom as of September 2026 and tracks 548 professional contacts across them, including 105 with verified work emails. London is the largest hub.

This list covers company matches for semiconductor assembly companies 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 17, 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 17, 2026 How this list was built

44Companies

548Contacts tracked

105Verified emails

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The 14 largest semiconductor assembly companies based in the United Kingdom

Ranked by team size

Top 14 of 44 company matches for semiconductor assembly companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Newport Wafer FAB	Exact match	Newport, United KingdomHQ recorded Sep 17, 2026	n/a	51 contacts →
	Exact match “Semiconductors” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Rochester Electronics Emea	Exact match	St Neots, United KingdomHQ recorded Sep 17, 2026	51-200	43 contacts →
	Exact match “For over 40 years Rochester, in partnership with over 70 leading semiconductor manufacturers, has provided our valued customers with a continuous source of critical semiconductors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Diodes-Incorported	Exact match	Manchester, United KingdomHQ recorded Sep 17, 2026	501-1,000	41 contacts →
	Exact match “International Semiconductor Manufacturer - International Semiconductor Manufacturer - International Semiconductor Manufacturer - International Semiconductor Manufacturer -…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Isem Global	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match “iSem Global was formed in 2019 to expand a gap in a growing market to provide a truly specialist, global semiconductor recruitment search service.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	RAM Innovations	Exact match	Pentre, United KingdomHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “RAM Innovations develops and manufactures next-generation packaging solutions for the semiconductor and electronics industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Inseto	Exact match	Andover, United KingdomHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “Suppliers of Advanced Technology for Research & Industry Inseto, founded in 1987, provide advanced manufacturing equipment, assembly materials and related consumable products for…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Teradyne Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	n/a	12 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Trizo Limited	Exact match	Bridgwater, United KingdomHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Trizo Ltd is an electrical and electronic Manufacturing AS9100 Rev D accredited company located in Bridgwater, Somerset, United Kingdom.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Power Products International LTD	Exact match	Edenbridge, United KingdomHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “From the distribution of discrete power semiconductor components and heat sinks to the manufacture of high power semiconductor assemblies, Power Products International provides a…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Nanomation	Exact match	Cambridge, United KingdomHQ recorded Sep 17, 2026	1-10	3 contacts →
	Exact match “Nanomation is a semiconductor software start-up from the University of Cambridge Department of Engineering.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Elliptic Systems	Exact match	Hereford, United KingdomHQ recorded Sep 17, 2026	1-10	2 contacts →
	Exact match “Elliptic Systems is home to a team of highly dedicated and talented engineers that design and manufacture microelectronics.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Moortec Semiconductor Limited	Exact match	Plymouth, United KingdomHQ recorded Sep 17, 2026	11-50	2 contacts →
	Exact match “Moortec is now part of Synopsys.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Silicon Tailor LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “Silicon Tailor Ltd is a semiconductors company based out of 34 Lower Richmond Rd, London, England, United Kingdom.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Advanced EPI Materials And Devices LTD	Exact match	Leamington Spa, United KingdomHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “Advanced Epi is a UK based semiconductor manufacturer specialising in epitaxial growth, material characterisation and novel device fabrication.” Recorded in the RevenueBase company graph · Sep 17, 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 “semiconductor assembly companies”. 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 14 of 44 semiconductor assembly companies based in the United Kingdom

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Semiconductor assembly companies based in the United Kingdom at a glance

As of Sep 17, 2026

19.2%Verified-email coverage

12.5Average contacts per company

11-50Median size (employees)

15.9%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 44 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 “semiconductor assembly companies” 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 105 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 17, 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 “semiconductor assembly companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many semiconductor assembly companies are there based in the United Kingdom?

RevenueBase identified 44 company matches for semiconductor assembly companies 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?

Newport Wafer FAB tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most semiconductor assembly companies?

London leads with 7 company records, followed by Andover (2) and Livingston (2).

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 105 professional contacts with verified work emails tracked across these 44 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 17, 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.