Company lists · Data refreshed September 2026

Top 25 Custom power supply manufacturers based in the United Kingdom

RevenueBase identified 70 company matches for custom power supply manufacturers associated with the United Kingdom as of September 2026 and tracks 556 professional contacts across them, including 201 with verified work emails. Knaresborough is the largest hub.

This list covers company matches for custom power supply manufacturers 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 30, 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 30, 2026 How this list was built
70Companies
556Contacts tracked
201Verified emails
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The 25 largest custom power supply manufacturers based in the United Kingdom

Ranked by team size
Top 25 of 70 company matches for custom power supply manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIlfracombe, United KingdomHQ recorded Sep 30, 2026201-500113 contacts →

Exact match

“TDK-Lambda UK is a unit of the TDK Corporation, a leading global electronics company.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2Exact matchMaldon, United KingdomHQ recorded Sep 30, 202611-5024 contacts →

Exact match

“TMC (Transformer Manufacturing Company) is a British manufacturer of transformers, power distribution equipment, and associated wound products, with a heritage dating back to 1981.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3Exact matchDundee, United KingdomHQ recorded Sep 30, 202611-5023 contacts →

Exact match

“Albacom has built an enviable reputation as a supplier of specialist High Voltage Power Supplies (HVPSU) serving Aerospace, Industrial and Medical markets.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4Exact matchLeicester, United KingdomHQ recorded Sep 30, 202651-20019 contacts →

Exact match

“iST POWER LIMITED is a UK-based manufacturer of high-performance transformers, reactors, and wound components-serving critical infrastructure and industrial applications for over…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5Exact matchWareham, United KingdomHQ recorded Sep 30, 202611-5018 contacts →

Exact match

“At Relec Electronics, we believe that the right technology keeps it running smoothly, clearly, and efficiently.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6Exact matchRosyth, United KingdomHQ recorded Sep 30, 202611-5015 contacts →

Exact match

“LEADING EDGE POWER ELECTRONICS SPECIALISTS Supply Design Limited is an electronics and product design consultancy specialising in power conversion, battery management and control…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7Exact matchSouthport, United KingdomHQ recorded Sep 30, 202611-5015 contacts →

Exact match

“United Automation Limited: Pioneering Power Control Solutions.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8Exact matchWickford, United KingdomHQ recorded Sep 30, 202611-5014 contacts →

Exact match

“We are an SME that specialises in providing innovative power solutions worldwide to a variety of industries.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9Exact matchLetchworth, United KingdomHQ recorded Sep 30, 202611-5014 contacts →

Exact match

“On-systems has vast experience solving power challenges worldwide since being founded in 2010 by engineer Mike Harvey.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10Exact matchLong Crendon, United KingdomHQ recorded Sep 30, 202611-5013 contacts →

Exact match

“Ecopac (UK) Power Ltd are authorised distributors for MEAN WELL, Eaglerise, EU Chips and Vox Power.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11Exact matchGuildford, United KingdomHQ recorded Sep 30, 202651-20012 contacts →

Exact match

“Boldly future-oriented while never losing sight of the past, Ashley-Edison(UK) is a time-tested that delivers trusted power quality solutions to your electrical systems-without…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12Exact matchBarnstaple, United KingdomHQ recorded Sep 30, 20261-1011 contacts →

Exact match

“Ideal Power are the experts in providing Power Conversion Solutions, with over 40 years specialist knowledge in the Power Industry; specifying, sourcing and distributing a wide…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13Exact matchSt. Albans, United KingdomHQ recorded Sep 30, 2026n/a11 contacts →

Exact match

“FSP Group is the global leading innovator in the power supply unit sector with over employee worldwide, design and produces over 60 million PSU per year.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14Exact matchAldermaston, United KingdomHQ recorded Sep 30, 202611-5010 contacts →

Exact match

“UK-based specialist in power supplies and energy storage solutions, delivering high-performance and reliable products tailored to industrial, commercial and specialised…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15Exact matchAldermaston, United KingdomHQ recorded Sep 30, 202611-508 contacts →

Exact match

“Fidus Power is dedicated to providing a full range of high quality, reliable power supplies.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16Exact matchHarrogate, United KingdomHQ recorded Sep 30, 202611-507 contacts →

Exact match

“Advance Product Services Ltd repair, design and manufacture industrial AC-DC power supplies (PSU’s), rectifiers, inverters.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17Exact matchTipton, United KingdomHQ recorded Sep 30, 202611-506 contacts →

Exact match

“PSU Designs Ltd is a substantial custom designer and manufacturer of switch-mode power supplies and battery chargers and is the first choice of many of the world’s leading…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18Exact matchLeeds, United KingdomHQ recorded Sep 30, 20261-106 contacts →

Exact match

“Smart Power Solutions LLP is based in Leeds in the UK and was founded in 2001.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19Exact matchNewbury, United KingdomHQ recorded Sep 30, 202611-505 contacts →

Exact match

“Powersolve Electronics Ltd.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20Exact matchWitney, United KingdomHQ recorded Sep 30, 202611-504 contacts →

Exact match

“Vigortronix Ltd is a leading manufacturer of transformers, power supplies, wound magnetics & has an international reputation for quality.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21Exact matchCoventry, United KingdomHQ recorded Sep 30, 20261-104 contacts →

Exact match

“CP Power & Automation Ltd are specialists in two areas Power Supplies AC to DC Power Supplies DC to DC Converters Electronic DC Loads UPS Cutting Machinery Cutting Machines for…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22Exact matchSalisbury, United KingdomHQ recorded Sep 30, 202611-503 contacts →

Exact match

“Gresham Power Electronics Ltd.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23Exact matchMalvern, United KingdomHQ recorded Sep 30, 202611-503 contacts →

Exact match

“Electronic Systems, Design and Manufacture.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24Exact matchCongleton, United KingdomHQ recorded Sep 30, 202611-503 contacts →

Exact match

“CLARKE CABLE LIMITED is an electrical/electronic manufacturing company based out of Congleton, United Kingdom.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25Exact matchHenley-on-thames, United KingdomHQ recorded Sep 30, 20261-103 contacts →

Exact match

“Specialists in power conversion products”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

Showing 25 of 70 custom power supply manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 201 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Custom power supply manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026
36.2%Verified-email coverage
7.9Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Knaresborough
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
34
51-200
9
201-500
1
501-1,000
1
5,001-10,000
1

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 70 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 “custom power supply manufacturers” 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 201 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 30, 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 “custom power supply manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many custom power supply manufacturers are there based in the United Kingdom?

RevenueBase identified 70 company matches for custom power supply manufacturers 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?

Tdk-Lambda UK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most custom power supply manufacturers?

Knaresborough leads with 3 company records, followed by London (3) and Aldermaston (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 201 professional contacts with verified work emails tracked across these 70 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 30, 2026.

Ready to reach these companies? Verified emails and direct dials for all 70 custom power supply manufacturers based in the United Kingdom. Start with a free account, no credit card.

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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.