Company lists · Data refreshed September 2026

Top 25 Custom hardware manufacturers based in the United Kingdom

Name: Custom hardware 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 81 companies tracked

RevenueBase identified 81 custom hardware manufacturers headquartered in the United Kingdom as of September 2026 and tracks 647 professional contacts across them, including 280 with verified work emails. London is the largest hub.

This list covers custom hardware 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 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

81Companies

647Contacts tracked

280Verified emails

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The 25 largest custom hardware manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 81 custom hardware manufacturers 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 custom hardware 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	Captec	Indirect evidence	Fareham, United KingdomHQ checked Sep 30, 2026	51-200	150 contacts →
	Indirect evidence “Established in 1985, Captec is an award-winning designer and end-to-end provider of Specialised Computers, Integrated Systems, Subsystems and Smart Edge & IoT platforms.” Source: RevenueBase Database · checked Sep 30, 2026
2	Densitron	Partial evidence	Crawley, United KingdomHQ checked Sep 30, 2026	201-500	41 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
3	Exacta Technologies LTD	Strong evidence	Bristol, United KingdomHQ checked Sep 30, 2026	51-200	37 contacts →
	Strong evidence “As the UK's leading customised appliance manufacturer, we provide bespoke design, manufacturing, testing and shipping services that enables our clients to deliver their solutions…” Source: RevenueBase Database · checked Sep 30, 2026
4	Electrica	Strong evidence	Manchester, United KingdomHQ checked Sep 30, 2026	11-50	26 contacts →
	Strong evidence “Electrica designs, develops and manufactures performance-critical and complex electronics for customers around the world, using world class technology at our state-of-the-art…” Source: RevenueBase Database · checked Sep 30, 2026
5	Taran Microsystems Limited	Indirect evidence	Basingstoke, United KingdomHQ checked Sep 30, 2026	11-50	23 contacts →
	Indirect evidence “Taran Microsystems was formed in 1992 by Managing Director Andy Miles and Sales Director Simon Miles.” Source: RevenueBase Database · checked Sep 30, 2026
6	Bitbox LTD	Indirect evidence	Basingstoke, United KingdomHQ checked Sep 30, 2026	11-50	21 contacts →
	Indirect evidence “BitBox Ltd is a UK-based leader in electronic design and manufacturing, with over 30 years of experience transforming ideas-big or small-into high-quality, market-ready products.” Source: RevenueBase Database · checked Sep 30, 2026
7	Marturion Electronics LTD	Indirect evidence	Lisburn, United KingdomHQ checked Sep 30, 2026	11-50	20 contacts →
	Indirect evidence “Marturion Electronics Ltd (MEL) offers excellence in design of the latest electronic circuit technology and associated embedded software – this is also now supplemented with…” Source: RevenueBase Database · checked Sep 30, 2026
8	Washington Components	Partial evidence	Washington, United KingdomHQ checked Sep 30, 2026	11-50	19 contacts →
	Partial evidence “Washington Components supports customers with complex machining, welding and project-based manufacturing requirements in regulated and high-specification engineering environments.” Source: RevenueBase Database · checked Sep 30, 2026
9	Pivot A2e	Partial evidence	Livingston, United KingdomHQ checked Sep 30, 2026	11-50	17 contacts →
	Partial evidence “From initial proof of concept or prototype, to full production, A2E delivers electronics hardware and software design services across a range of industry sectors.” Source: RevenueBase Database · checked Sep 30, 2026
10	Inelco Hunter Limited	Indirect evidence	Theale, United KingdomHQ checked Sep 30, 2026	11-50	17 contacts →
	Indirect evidence “Way back in 1993, Inelco Hunter started out supplying electronic components … in its infancy, it was all capacitors, LCD displays, fans and relays.” Source: RevenueBase Database · checked Sep 30, 2026
11	DSL Datasound Laboratories LTD	Indirect evidence	Letchworth, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “DSL are an embedded and industrial computing specialist, drawing on over 30 years experience to provide fully bespoke solutions alongside a wide range of 3rd party board level and…” Source: RevenueBase Database · checked Sep 30, 2026
12	RVL	Partial evidence	Matfield, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Partial evidence “Electronic Hardware Design - Electronic Software Design - Electronic Manufacturing Services - Contract Electronic Manufacturing Services RVL is an electronic engineering company…” Source: RevenueBase Database · checked Sep 30, 2026
13	Blue Chip Technology	Partial evidence	Tattenhall, United KingdomHQ checked Sep 30, 2026	11-50	13 contacts →
	Partial evidence “We design and manufacture embedded computers and industrial electronics for rail, medical, oil & gas, automation and many other industries.” Source: RevenueBase Database · checked Sep 30, 2026
14	Advantech	Partial evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 30, 2026	n/a	13 contacts →
	Partial evidence “Advantech's gaming division specializes in designing and manufacturing industrial-grade hardware and dedicated software tailored to the gaming industry's exact needs.” Source: RevenueBase Database · checked Sep 30, 2026
15	Vadatech LTD	Partial evidence	Southampton, United KingdomHQ checked Sep 30, 2026	201-500	10 contacts →
	Partial evidence “VadaTech is a world leader in the design and manufacture of embedded computing solutions.” Source: RevenueBase Database · checked Sep 30, 2026
16	Circuitworx	Indirect evidence	Salisbury, United KingdomHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Award winning bespoke electronics company founded in 2014 with ISO:9001 quality certification- Multi-layer PCB design using Cadence Orcad, Eaglecad or others - Low power battery…” Source: RevenueBase Database · checked Sep 30, 2026
17	Milliamp Technologies	Indirect evidence	Lancaster, United KingdomHQ checked Sep 30, 2026	1-10	9 contacts →
	Indirect evidence “Milliamp Technologies Ltd is an independent Electronics Design & Manufacturing specialist based at the foot of the Lake District in Lancaster, North West England, UK.” Source: RevenueBase Database · checked Sep 30, 2026
18	Gspk Design	Indirect evidence	Knaresborough, United KingdomHQ checked Sep 30, 2026	11-50	8 contacts →
	Indirect evidence “Based in Knaresborough, North Yorkshire, GSPK Design has over 25 years of experience developing bespoke electronics for new product development or product reengineering.” Source: RevenueBase Database · checked Sep 30, 2026
19	Sumo Technologies	Indirect evidence	York, United KingdomHQ checked Sep 30, 2026	1-10	6 contacts →
	Indirect evidence “SUMO Technologies Ltd.” Source: RevenueBase Database · checked Sep 30, 2026
20	Glideology	Indirect evidence	Malvern, United KingdomHQ checked Sep 30, 2026	11-50	5 contacts →
	Indirect evidence “Glideology delivers reliable, compliant and sustainable engineering for organisations that need technology built to last.” Source: RevenueBase Database · checked Sep 30, 2026
21	Axiomtek UK	Indirect evidence	Manchester, United KingdomHQ checked Sep 30, 2026	1-10	5 contacts →
	Indirect evidence “Axiomtek is one of the major design and manufacturing companies in the Industrial PC field with over 30 year experience.” Source: RevenueBase Database · checked Sep 30, 2026
22	Smartsentry LTD	Partial evidence	Nottingham, United KingdomHQ checked Sep 30, 2026	1-10	4 contacts →
	Partial evidence “SmartSentry has over 10 years experience offering electronics design & manufacturer to wide range of industries such as Aerospace IoT devices & infrastructure Industrial control…” Source: RevenueBase Database · checked Sep 30, 2026
23	Bermondsey Electronics LTD	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	1-10	4 contacts →
	Indirect evidence “Bermondsey Electronics Limited is a highly experienced embedded system design house.” Source: RevenueBase Database · checked Sep 30, 2026
24	Rugby Consultants	Indirect evidence	Rugby, United KingdomHQ checked Sep 30, 2026	1-10	4 contacts →
	Indirect evidence “Rugby Consultants offers electronics and embedded design and development services to take ideas into production.” Source: RevenueBase Database · checked Sep 30, 2026
25	Modnyco	Partial evidence	Birmingham, United KingdomHQ checked Sep 30, 2026	1-10	3 contacts →
	Partial evidence “UK-based engineering firm specialising in Electronics hardware and firmware design and development, software solutions, performance validation, and artificial intelligence.” 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: custom hardware 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 custom hardware manufacturers.
Partial evidence: Its own public description names part of custom hardware manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom hardware 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 81 custom hardware manufacturers based in the United Kingdom

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Custom hardware manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

43.3%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

9.9%Largest-city concentration · London

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

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 81 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 custom hardware 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 “custom hardware 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 custom hardware 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 custom hardware 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, 280 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 custom hardware 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 custom hardware manufacturers are there based in the United Kingdom?

RevenueBase identified 81 custom hardware 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?

Captec, headquartered in Fareham, tops this list with the largest team on record.

Which city has the most custom hardware manufacturers?

London leads with 8 headquartered companies, followed by Basingstoke (2) 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 280 verified decision-maker contacts tracked across these 81 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.

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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.