Company lists · Data refreshed November 2026

Top 25 Electrical transformers suppliers based in the United Kingdom

RevenueBase identified 122 company matches for electrical transformers suppliers associated with the United Kingdom as of November 2026 and tracks 2,641 professional contacts across them, including 901 with verified work emails. Leeds is the largest hub.

This list covers company matches for electrical 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 6, 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 6, 2026 How this list was built
122Companies
2,641Contacts tracked
901Verified emails
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The 25 largest electrical transformers suppliers based in the United Kingdom

Ranked by team size
Top 25 of 122 company matches for electrical transformers suppliers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchLoughborough, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
2Exact matchLeeds, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
3Exact matchTollbridge Road, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
4Exact matchBraintree, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
5Exact matchGuildford, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
6Exact matchHeanor, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
7Exact matchHyde, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
8Exact matchCo.tyrone, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
9Exact matchBlaydon On Tyne, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
10Exact matchMaldon, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
11Exact matchEaglescliffe, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
12Exact matchChristchurch, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
13Exact matchMaghera, United KingdomHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Grid Team Services efficiently constructs and installs quality end-to-end electrical transmission and distribution systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLeicester, United KingdomHQ recorded Nov 6, 202651-20020 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBury, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Specialist Switchgear Systems Ltd has been helping clients, electrical contractors and tradespeople deliver sustainable excellence in switchgear solutions & components for decades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchTelford, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“CEENorm UK Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWickford, United KingdomHQ recorded Nov 6, 202611-5016 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSherburn In Elmet, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Introduction Established in 1975 and with over 50 years’ experience, GR Electrical Services Ltd is one of the UK’s leading manufacturers in the switchboard industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchStoke-on-trent, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“About Electro-Wind Limited Established in 1979, Electro-Wind Limited is one of the UK's leading independent manufacturers of custom-built transformers, dry type transformers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAldridge, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“highly experienced high and low voltage connections provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchStafford, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Transerv Europe Limited provide specialist technical services associated with all aspects of installation, commissioning and maintenance of power and distribution transformers, to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“Innovation, Integrity, Quality and Service is in our DNA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSheffield, United KingdomHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“The Group are internationally recognised experts in HV and LV power and distribution equipment, HV and LV installation and maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchEast Kilbride, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Instrument Transformers Limited (ITL) is a UK-based designer and manufacturer of Current Transformers (CTs), Voltage Transformers (VTs), sensors, and asset monitoring solutions…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHixon, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Power System Partners Limited is an UK Sales Agency representing manufacturers of Power Transformers, Medium size Transformers, Cast Resin Transformers, Switchgear and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 122 electrical transformers suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 901 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical transformers suppliers based in the United Kingdom at a glance

As of Nov 6, 2026
34.1%Verified-email coverage
21.6Average contacts per company
11-50Median size (employees)
4.9%Largest-city concentration · Leeds
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
43
11-50
45
51-200
22
201-500
1
501-1,000
3
1,001-5,000
2

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 122 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 “electrical 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 901 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 6, 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 “electrical transformers suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 122 company matches for electrical 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?

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

Which city has the most electrical transformers suppliers?

Leeds leads with 6 company records, followed by London (6) and Manchester (5).

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 901 professional contacts with verified work emails tracked across these 122 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 122 electrical transformers suppliers 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.