Company lists · Data refreshed November 2026

Top 25 Transformers suppliers based in the United Kingdom

RevenueBase identified 242 company matches for transformers suppliers associated with the United Kingdom as of November 2026 and tracks 5,278 professional contacts across them, including 2,031 with verified work emails. London is the largest hub.

This list covers company matches for transformers suppliers 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 November 2, 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 Nov 2, 2026 How this list was built
242Companies
5,278Contacts tracked
2,031Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest transformers suppliers based in the United Kingdom

Ranked by team size
Top 25 of 242 company matches for transformers suppliers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 2, 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 matchLeeds, United KingdomHQ recorded Nov 2, 20261,001-5,000740 contacts →

Exact match

“Freedom is a leading provider of facilities and power engineering services.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
2Exact matchRugby, United KingdomHQ recorded Nov 2, 2026501-1,000456 contacts →

Exact match

“Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
3Exact matchLoughborough, United KingdomHQ recorded Nov 2, 2026501-1,000229 contacts →

Exact match

“We support the global drive to net zero with innovative, engineered solutions that address grid resilience and systems challenges, facilitate electrification of transport and…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchLeeds, United KingdomHQ recorded Nov 2, 202651-200161 contacts →

Exact match

“Wilson Power Solutions is a power and distribution transformer manufacturer, recognised for pioneering amorphous transformer core technology, making it home to Europe's most…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
5Exact matchRotherham, United KingdomHQ recorded Nov 2, 202651-20073 contacts →

Exact match

“Preformed Windings is obsessed with Quality.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
6Exact matchMediacityuk, United KingdomHQ recorded Nov 2, 202651-20058 contacts →

Exact match

“About us The Würth Elektronik Group of companies has about 7,300 employees worldwide and generated global sales of €1.06 billion in 2025 With 23 production locations worldwide…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchWrexham, United KingdomHQ recorded Nov 2, 202651-20056 contacts →

Exact match

“Lloyd Morris Electrical Limited is a company of Electrical Engineers, specialising in the design, manufacture and installation of Electrical Distribution and Control Systems for…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact matchUlverston, United KingdomHQ recorded Nov 2, 202651-20054 contacts →

Exact match

“Acrastyle Limited (UK) is a resource-rich engineering company that designs, manufactures, tests, installs, commissions, and maintains high-voltage sub-station protection and…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
9Exact matchTollbridge Road, United KingdomHQ recorded Nov 2, 202651-20048 contacts →

Exact match

“Established for over 100 years, Slaters Electricals Ltd are experts in LV and HV power distribution equipment, installation and support solutions.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact matchBraintree, United KingdomHQ recorded Nov 2, 202651-20042 contacts →

Exact match

“Lewden, a subsidiary of Palazzoli S.p.A, offers electrical power distribution solutions for industrial, construction, commercial, domestic and event sectors.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 2, 202611-5039 contacts →

Exact match

“IONATE is a deep-tech innovator building the technology backbone for smart electricity grids.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
12Exact matchGuildford, United KingdomHQ recorded Nov 2, 202651-20039 contacts →

Exact match

“Transformers & Rectifiers Ltd is a globally recognised specialist in the design, manufacture, and maintenance of liquid-filled and dry-type transformers, as well as transformer…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchHeanor, United KingdomHQ recorded Nov 2, 202611-5038 contacts →

Exact match

“Bowers Electricals are in the 70th year of powering industry and one of the worlds biggest designers and suppliers of energy saving EU Compliant Tier 1 and Tier 2 Distribution and…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchCrewkerne, United KingdomHQ recorded Nov 2, 202651-20038 contacts →

Exact match

“We are a market driven supplier of miniature power transmission systems and controls.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
15Exact matchYork, United KingdomHQ recorded Nov 2, 202611-5036 contacts →

Exact match

“Your Component Sourcing Partner, all Components for All Industries.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
16Exact matchHyde, United KingdomHQ recorded Nov 2, 202651-20032 contacts →

Exact match

“ISS Ltd are a HV/LV Power Engineering company operating nationwide, undertaking Turnkey Electrical Distribution Projects and Site Service activities, including installation…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
17Exact matchHartlebury, United KingdomHQ recorded Nov 2, 202611-5031 contacts →

Exact match

“TEC Electric Motors holds the largest stock of electric motors in the UK, alongside a comprehensive range of gearboxes and inverter drives.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
18Exact matchCo.tyrone, United KingdomHQ recorded Nov 2, 202651-20031 contacts →

Exact match

“JJ Loughran is an Electrical Engineering & Supply Company based in Cookstown N.Ireland.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
19Exact matchBlaydon On Tyne, United KingdomHQ recorded Nov 2, 202611-5031 contacts →

Exact match

“Power transformer repair, refurbishment, supply & installation and enhancement throughout the UK and northern Europe.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
20Exact matchThame, United KingdomHQ recorded Nov 2, 202651-20026 contacts →

Exact match

“Best-in-class products from Lucy Electric - experts in secondary power distriution specialising in high performance medium and low voltage switchgear for utility, industrial and…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
21Exact matchMaldon, United KingdomHQ recorded Nov 2, 202611-5026 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 · Nov 2, 2026 · View company records in RevenueBase
22Exact matchStoke On Trent, United KingdomHQ recorded Nov 2, 202651-20025 contacts →

Exact match

“At ICS, part of United Infrastructure Group, we power the future with innovative, high-voltage electrical solutions.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
23Exact matchSouthampton, United KingdomHQ recorded Nov 2, 202611-5020 contacts →

Exact match

“Well, we would like to think we are the missing link in the power distribution sector – providing what is needed, when it is needed, to a wide range of stakeholders across the…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
24Exact matchEaglescliffe, United KingdomHQ recorded Nov 2, 202611-5020 contacts →

Exact match

“Carroll and Meynell Transformers Ltd have excelled in the design & manufacture of transformers since 1970.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
25Exact matchChristchurch, United KingdomHQ recorded Nov 2, 202651-20020 contacts →

Exact match

“AVON MAGNETICS LIMITED is an electrical/electronic manufacturing company based out of Reid St, Christchurch, DORSET, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase

Showing 25 of 242 transformers suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,031 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Transformers suppliers based in the United Kingdom at a glance

As of Nov 2, 2026
38.5%Verified-email coverage
21.8Average contacts per company
11-50Median size (employees)
5.8%Largest-city concentration · London
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
94
11-50
88
51-200
36
201-500
3
501-1,000
5
1,001-5,000
3

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 242 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 “transformers suppliers” 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 2,031 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 November 2, 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 “transformers suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformers suppliers are there based in the United Kingdom?

RevenueBase identified 242 company matches for transformers suppliers associated with the United Kingdom as of November 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?

Freedom tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most transformers suppliers?

London leads with 14 company records, followed by Leeds (9) and Manchester (7).

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 2,031 professional contacts with verified work emails tracked across these 242 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 November 2, 2026.

Ready to reach these companies? Verified emails and direct dials for all 242 transformers suppliers based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.