Company lists · Data refreshed September 2026
Top 25 Custom power supply manufacturers based in the United Kingdom
RevenueBase identified 70 custom power supply manufacturers headquartered in 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 custom power supply 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.
The 25 largest custom power supply manufacturers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 113 contacts → | ||||
Indirect evidence “TDK-Lambda UK is a unit of the TDK Corporation, a leading global electronics company.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 24 contacts → | ||||
Strong evidence “TMC (Transformer Manufacturing Company) is a British manufacturer of transformers, power distribution equipment, and associated wound products, with a heritage dating back to 1981.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 23 contacts → | ||||
Strong evidence “Albacom has built an enviable reputation as a supplier of specialist High Voltage Power Supplies (HVPSU) serving Aerospace, Industrial and Medical markets.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 19 contacts → | ||||
Strong evidence “iST POWER LIMITED is a UK-based manufacturer of high-performance transformers, reactors, and wound components-serving critical infrastructure and industrial applications for over…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 18 contacts → | ||||
Indirect evidence “At Relec Electronics, we believe that the right technology keeps it running smoothly, clearly, and efficiently.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 15 contacts → | ||||
Strong evidence “LEADING EDGE POWER ELECTRONICS SPECIALISTS Supply Design Limited is an electronics and product design consultancy specialising in power conversion, battery management and control…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 15 contacts → | ||||
Partial evidence “United Automation Limited: Pioneering Power Control Solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 14 contacts → | ||||
Partial evidence “We are an SME that specialises in providing innovative power solutions worldwide to a variety of industries.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 14 contacts → | ||||
Partial evidence “On-systems has vast experience solving power challenges worldwide since being founded in 2010 by engineer Mike Harvey.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 contacts → | ||||
Partial evidence “Ecopac (UK) Power Ltd are authorised distributors for MEAN WELL, Eaglerise, EU Chips and Vox Power.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 11 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 11 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 contacts → | ||||
Strong evidence “UK-based specialist in power supplies and energy storage solutions, delivering high-performance and reliable products tailored to industrial, commercial and specialised…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 contacts → | ||||
Strong evidence “Fidus Power is dedicated to providing a full range of high quality, reliable power supplies.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Strong evidence “Advance Product Services Ltd repair, design and manufacture industrial AC-DC power supplies (PSU’s), rectifiers, inverters.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Partial evidence “Smart Power Solutions LLP is based in Leeds in the UK and was founded in 2001.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Indirect evidence “Powersolve Electronics Ltd.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Strong evidence “Vigortronix Ltd is a leading manufacturer of transformers, power supplies, wound magnetics & has an international reputation for quality.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Partial evidence “Gresham Power Electronics Ltd.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Partial evidence “Electronic Systems, Design and Manufacture.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Indirect evidence “CLARKE CABLE LIMITED is an electrical/electronic manufacturing company based out of Congleton, United Kingdom.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “Specialists in power conversion products” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
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 power supply 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 power supply manufacturers.
- Partial evidence
- Its own public description names part of custom power supply manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name custom power supply 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 70 custom power supply manufacturers based in the United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 201 reachable decision-makers.
Free signup · no credit card
Custom power supply manufacturers based in the United Kingdom at a glance
As of Sep 30, 2026Companies by employee count
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
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among custom power supply 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 power supply 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 power supply 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 power supply 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, 201 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 power supply 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 power supply manufacturers are there based in the United Kingdom?
RevenueBase identified 70 custom power supply 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?
Tdk-Lambda UK, headquartered in Ilfracombe, tops this list with the largest team on record.
Which city has the most custom power supply manufacturers?
Knaresborough leads with 3 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 201 verified decision-maker contacts tracked across these 70 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.
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.
Download this list →Related lists
Custom power supply manufacturers by geography
- Custom power supply manufacturers based in France
- Custom power supply manufacturers based in Germany
- Custom power supply manufacturers based in India
- Custom power supply manufacturers based in Italy
- Custom power supply manufacturers based in Taiwan
- Custom power supply manufacturers based in the United States
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Custom power supply manufacturers based in France
- Custom power supply manufacturers based in Germany
- Custom power supply manufacturers based in India
- Custom power supply manufacturers based in Italy
- Custom power supply manufacturers based in Taiwan
- Custom power supply manufacturers based in the United States