Company lists · Data refreshed September 2026

Top 25 Radio frequency semiconductor companies based in the United Kingdom

Name: Radio frequency semiconductor 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 63 companies tracked

RevenueBase identified 63 radio frequency semiconductor companies headquartered in the United Kingdom as of September 2026 and tracks 3,118 professional contacts across them, including 1,307 with verified work emails. London is the largest hub.

This list covers radio frequency semiconductor 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 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

63Companies

3,118Contacts tracked

1,307Verified emails

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The 25 largest radio frequency semiconductor companies based in the United Kingdom

Ranked by team size

Top 25 of 63 radio frequency semiconductor companies 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 radio frequency semiconductor 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	Smiths Interconnect	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	10001+	809 contacts →
	Indirect evidence “Smiths Interconnect, a Molex company, is a leading provider of high reliability connectivity products and solutions serving segments of aerospace and defense, medical…” Source: RevenueBase Database · checked Sep 17, 2026
2	Radio Design	Partial evidence	Shipley, United KingdomHQ checked Sep 17, 2026	201-500	176 contacts →
	Partial evidence “Radio Design is a global leader in delivering cutting-edge RF solutions to the Mobile Networks, Defence, and Aerospace markets.” Source: RevenueBase Database · checked Sep 17, 2026
3	Ensilica	Indirect evidence	Abingdon, United KingdomHQ checked Sep 17, 2026	201-500	170 contacts →
	Indirect evidence “EnSilica is a leading fabless design house focused on custom ASIC design and supply for OEMs and system houses, as well as IC design services for companies with their own design…” Source: RevenueBase Database · checked Sep 17, 2026
4	ETL Systems	Indirect evidence	Hereford, United KingdomHQ checked Sep 17, 2026	51-200	169 contacts →
	Indirect evidence “ETL Systems has been at the forefront of RF design and manufacturing for over 35 years.” Source: RevenueBase Database · checked Sep 17, 2026
5	Filtronic	Partial evidence	Sedgefield, United KingdomHQ checked Sep 17, 2026	51-200	143 contacts →
	Partial evidence “Filtronic develop and manufacture high performance RF, microwave and mmWave technologies, that transmit, receive and condition radio signals.” Source: RevenueBase Database · checked Sep 17, 2026
6	Panorama Antennas	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	123 contacts →
	Partial evidence “Panorama Antennas is a market leader in the design and manufacture of antenna solutions for the wireless radio communication industry.” Source: RevenueBase Database · checked Sep 17, 2026
7	CRFS	Indirect evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	51-200	104 contacts →
	Indirect evidence “CRFS was acquired by Motorola Solutions in 2025.” Source: RevenueBase Database · checked Sep 17, 2026
8	MPG Europe BSC	Strong evidence	Clifton Moor, United KingdomHQ checked Sep 17, 2026	51-200	68 contacts →
	Strong evidence “MPG Europe delivers radio frequency (RF) spectrum-centric solutions at the speed of technology.” 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	Alaris Linwave	Indirect evidence	Lincoln, United KingdomHQ checked Sep 17, 2026	11-50	34 contacts →
	Indirect evidence “The future of RF won’t be built by playing it safe.” Source: RevenueBase Database · checked Sep 17, 2026
11	FLANN	Indirect evidence	Bodmin, United KingdomHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “High-quality waveguide components and systems from 1 GHz to 1.1 THz Since 1956, Flann Microwave has been a market-leading designer and manufacturer of Antennas, Precision…” Source: RevenueBase Database · checked Sep 17, 2026
12	Melcom Electronics Limited	Indirect evidence	Surrey, United KingdomHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Melcom Electronics Limited is a Defence and Space company located in Chertsey, Surrey, United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
13	Slipstream Engineering Design LTD	Partial evidence	Shipley, United KingdomHQ checked Sep 17, 2026	11-50	22 contacts →
	Partial evidence “We’re high speed, high frequency designers passionate about RF and digital technology.” Source: RevenueBase Database · checked Sep 17, 2026
14	Forefront RF	Partial evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “Forefront RF is spearheading a new approach to RFFE designs architectures in smartphones and wearables by replacing fixed frequency filters with a tunable alternative to reduce…” Source: RevenueBase Database · checked Sep 17, 2026
15	Frontier Smart Technologies	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	20 contacts →
	Partial evidence “Frontier Smart Technologies is a pioneer in technologies for digital radio and connected audio devices.” Source: RevenueBase Database · checked Sep 17, 2026
16	Link Microtek LTD	Strong evidence	Basingstoke, United KingdomHQ checked Sep 17, 2026	11-50	20 contacts →
	Strong evidence “We supply high specification radio frequency (RF), microwave and infra red systems, components and instrumentation for aerospace, defence and commercial wireless applications.” Source: RevenueBase Database · checked Sep 17, 2026
17	Lime Microsystems	Partial evidence	Guildford, United KingdomHQ checked Sep 17, 2026	11-50	19 contacts →
	Partial evidence “Lime Microsystems specialises in software defined radio (SDR) systems and field programmable RF (FPRF) transceivers for the next generation of comms/IoT networks and wireless…” Source: RevenueBase Database · checked Sep 17, 2026
18	Novocomms Limited	Indirect evidence	Birmingham, United KingdomHQ checked Sep 17, 2026	51-200	17 contacts →
	Indirect evidence “Novocomms is a company with an expanding and valuable market opportunity and a solid and innovative heritage.” Source: RevenueBase Database · checked Sep 17, 2026
19	Viper RF	Partial evidence	Newton Aycliffe, United KingdomHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “We provide our customers a competitive advantage with innovative design solutions and experienced product support in RF & microwave semiconductor MMIC & Module technologies and…” Source: RevenueBase Database · checked Sep 17, 2026
20	Printech Circuit Laboratories Limited	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “For over 40 years Printech Circuit Laboratories (PCL) has been manufacturing specialist circuitry and associated products for a large number and variety of customers.” Source: RevenueBase Database · checked Sep 17, 2026
21	Westica Communications LTD	Partial evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “World class microwave radio transmission products and solutions Westica Communications provides a true "One Stop Shop" for all types of wireless communication systems and services.” Source: RevenueBase Database · checked Sep 17, 2026
22	Flexiguide LTD	Indirect evidence	Paignton, United KingdomHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Every day our products touch the lives of millions of people as they silently perform their duty as mission critical components within the thousands of networks & systems that…” Source: RevenueBase Database · checked Sep 17, 2026
23	Reliasat	Partial evidence	Swindon, United KingdomHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “ReliaSat is a leading manufacturer of high frequency satellite communications technology, offering reliable, cutting-edge solutions for high data rate requirements.” Source: RevenueBase Database · checked Sep 17, 2026
24	Aspen Electronics	Strong evidence	Ruislip, United KingdomHQ checked Sep 17, 2026	11-50	7 contacts →
	Strong evidence “Aspen Electronics Ltd was formed in 1974, as a supplier of Radio Frequency (RF) & Microwave Test Equipment and Components.” Source: RevenueBase Database · checked Sep 17, 2026
25	Diamond Microwave Limited	Indirect evidence	Shipley, United KingdomHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “With over four decades of microwave expertise, Diamond Microwave combines deep technical heritage, proven IP and engineering excellence, to design and manufacture high-performance…” 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: radio frequency semiconductor 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 radio frequency semiconductor companies.
Partial evidence: Its own public description names part of radio frequency semiconductor companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name radio frequency semiconductor 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 63 radio frequency semiconductor companies based in the United Kingdom

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Radio frequency semiconductor companies based in the United Kingdom at a glance

As of Sep 17, 2026

41.9%Verified-email coverage

49.5Average contacts per company

11-50Median size (employees)

9.5%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 63 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 radio frequency semiconductor 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 “radio frequency semiconductor 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 radio frequency semiconductor 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 radio frequency semiconductor 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, 1,307 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 radio frequency semiconductor 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 radio frequency semiconductor companies are there based in the United Kingdom?

RevenueBase identified 63 radio frequency semiconductor 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?

Smiths Interconnect, headquartered in London, tops this list with the largest team on record.

Which city has the most radio frequency semiconductor companies?

London leads with 6 headquartered companies, followed by Shipley (5) and Cambridge (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 1,307 verified decision-maker contacts tracked across these 63 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.