Company lists · Data refreshed September 2026

Top 25 Semiconductor manufacturers based in the United Kingdom

Name: Semiconductor 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 17, 2026 141 companies tracked

RevenueBase identified 141 semiconductor manufacturers headquartered in the United Kingdom as of September 2026 and tracks 4,639 professional contacts across them, including 1,427 with verified work emails. London is the largest hub.

This list covers semiconductor 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 17, 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 17, 2026 86% judged on-target in blind review

141Companies

4,639Contacts tracked

1,427Verified emails

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The 25 largest semiconductor manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 141 semiconductor manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to semiconductor 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Teledyne E2v	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 17, 2026	1,001-5,000	966 contacts →
	Indirect evidence “Chelmsford, UK \| Grenoble, France \| Seville, Spain Our innovations enable our customers innovations through access to state-of-the-art technologies, driving the next generation of…” Source: RevenueBase Database · checked Sep 17, 2026
2	Imagination Technologies	Partial evidence	Kings Langley, United KingdomHQ checked Sep 17, 2026	501-1,000	762 contacts →
	Partial evidence “At Imagination, we love engineering the semiconductor IP at the core of your favourite electronic products.” Source: RevenueBase Database · checked Sep 17, 2026
3	IQE	Partial evidence	Cardiff, United KingdomHQ checked Sep 17, 2026	501-1,000	330 contacts →
	Partial evidence “IQE is the leading global supplier of advanced semiconductor wafers with products covering a diverse range of applications, supported by an innovative outsourced foundry services…” Source: RevenueBase Database · checked Sep 17, 2026
4	Pragmatic Semiconductor	Partial evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	201-500	326 contacts →
	Partial evidence “We’re doing semiconductors differently.” Source: RevenueBase Database · checked Sep 17, 2026
5	Dynex Semiconductor LTD	Partial evidence	Lincoln, United KingdomHQ checked Sep 17, 2026	201-500	178 contacts →
	Partial evidence “For more than 70 years, Dynex Semiconductor has been designing and manufacturing high-power semiconductor solutions from its headquarters in Lincoln, England.” Source: RevenueBase Database · checked Sep 17, 2026
6	Discoverie Group PLC	Partial evidence	Guildford, United KingdomHQ checked Sep 17, 2026	1,001-5,000	89 contacts →
	Partial evidence “discoverIE Group plc is an international group of businesses that design and manufacture innovative electronic components for industrial applications.” Source: RevenueBase Database · checked Sep 17, 2026
7	Semefab LTD	Indirect evidence	Glenrothes, United KingdomHQ checked Sep 17, 2026	51-200	72 contacts →
	Indirect evidence “Semefab is a Silicon wafer foundry operation manufacturing microelectronics and Micro Electro-Mechanical Systems (MEMS) in Glenrothes, Scotland.” Source: RevenueBase Database · checked Sep 17, 2026
8	Cambridge GAN Devices LTD	Partial evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	51-200	61 contacts →
	Partial evidence “Cambridge GaN Devices Ltd.(CGD), a spin-out of the Cambridge University, is a fabless semiconductor company designing, developing and commercialising energy-efficient GaN-based…” Source: RevenueBase Database · checked Sep 17, 2026
9	Newport Wafer FAB	Partial evidence	Newport, United KingdomHQ checked Sep 17, 2026	n/a	51 contacts →
	Partial evidence “Semiconductors” Source: RevenueBase Database · checked Sep 17, 2026
10	Rochester Electronics Emea	Strong evidence	St Neots, United KingdomHQ checked Sep 17, 2026	51-200	43 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
11	Diodes-Incorported	Strong evidence	Manchester, United KingdomHQ checked Sep 17, 2026	501-1,000	41 contacts →
	Strong evidence “International Semiconductor Manufacturer - International Semiconductor Manufacturer - International Semiconductor Manufacturer - International Semiconductor Manufacturer -…” Source: RevenueBase Database · checked Sep 17, 2026
12	Aixtron Limited	Indirect evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	1,001-5,000	39 contacts →
	Indirect evidence “Our technology.” Source: RevenueBase Database · checked Sep 17, 2026
13	International Semiconductor Industry Group	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	38 contacts →
	Partial evidence “Connecting Leaders in the Semiconductor Ecosystem.” Source: RevenueBase Database · checked Sep 17, 2026
14	Mackwell	Indirect evidence	West Midlands, United KingdomHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “Mackwell has grown to become one of the leading technology & electronic component suppliers to the global lighting industry.” Source: RevenueBase Database · checked Sep 17, 2026
15	Redtree Solutions LTD	Indirect evidence	Preston Bissett, United KingdomHQ checked Sep 17, 2026	11-50	33 contacts →
	Indirect evidence “We are a source of Electronic Components and technologies to innovate, differentiate and reach faster time to market.” Source: RevenueBase Database · checked Sep 17, 2026
16	Eswin UK	Partial evidence	Whiteley, United KingdomHQ checked Sep 17, 2026	11-50	32 contacts →
	Partial evidence “ESWIN UK Ltd, established in 2019, is the European headquarters of a high growth, high innovation semiconductor corporation, working on providing state-of-the-art touch technology.” Source: RevenueBase Database · checked Sep 17, 2026
17	Thermco Systems Limited	Indirect evidence	Washington, United KingdomHQ checked Sep 17, 2026	51-200	31 contacts →
	Indirect evidence “Headquartered in Washington, West Sussex, United Kingdom Thermco Systems a Division of Tetreon Technologies, is the world’s most trusted brand name in horizontal diffusion…” Source: RevenueBase Database · checked Sep 17, 2026
18	Solid State PLC	Partial evidence	Redditch, United KingdomHQ checked Sep 17, 2026	201-500	25 contacts →
	Partial evidence “Solid State is a leading value-added electronics group supplying commercial, industrial and military markets with durable components, assemblies and manufactured systems for use…” Source: RevenueBase Database · checked Sep 17, 2026
19	GF Micro	Partial evidence	Stroud, United KingdomHQ checked Sep 17, 2026	11-50	22 contacts →
	Partial evidence “A leading independent semiconductor design company for the past thirty years, GF Micro successfully delivers products and services that meet our customers’ absolute need for…” Source: RevenueBase Database · checked Sep 17, 2026
20	WPG Emea	Indirect evidence	Stokenchurch, United KingdomHQ checked Sep 17, 2026	n/a	20 contacts →
	Indirect evidence “WPG Holdings, Worldwide No.” Source: RevenueBase Database · checked Sep 17, 2026
21	Anglia Components PLC	Indirect evidence	Wisbech, United KingdomHQ checked Sep 17, 2026	51-200	19 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
22	Memsstar Limited	Partial evidence	Livingston, United KingdomHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “memsstar is a premier process and equipment supplier of etch and deposition solutions for semiconductor, MEMS and related technology manufacturing processes.” Source: RevenueBase Database · checked Sep 17, 2026
23	Megatech Group	Partial evidence	Cannock, United KingdomHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “Megatech are specialists within the semiconductor and thin film Industries.” Source: RevenueBase Database · checked Sep 17, 2026
24	Inex Microtechnology LTD	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Inex works with world-leading suppliers of power electronics and sensing systems.” Source: RevenueBase Database · checked Sep 17, 2026
25	Isem Global	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	14 contacts →
	Partial evidence “iSem Global was formed in 2019 to expand a gap in a growing market to provide a truly specialist, global semiconductor recruitment search service.” Source: RevenueBase Database · checked Sep 17, 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: semiconductor manufacturers. 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 semiconductor manufacturers.
Partial evidence: Its own public description names part of semiconductor manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name semiconductor manufacturers. 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 141 semiconductor manufacturers based in the United Kingdom

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Semiconductor manufacturers based in the United Kingdom at a glance

As of Sep 17, 2026

30.8%Verified-email coverage

32.9Average contacts per company

11-50Median size (employees)

13.5%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 141 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 semiconductor 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 “semiconductor 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 semiconductor 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 semiconductor 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, 1,427 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 17, 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 semiconductor 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 semiconductor manufacturers are there based in the United Kingdom?

RevenueBase identified 141 semiconductor 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?

Teledyne E2v, headquartered in Chelmsford, tops this list with the largest team on record.

Which city has the most semiconductor manufacturers?

London leads with 19 headquartered companies, followed by Cambridge (5) and Manchester (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 1,427 verified decision-maker contacts tracked across these 141 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 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 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.