Company lists · Data refreshed November 2026

Top 25 Transformer switches suppliers based in the United Kingdom

RevenueBase identified 185 company matches for transformer switches suppliers associated with the United Kingdom as of November 2026 and tracks 5,709 professional contacts across them, including 2,701 with verified work emails. London is the largest hub.

This list covers company matches for transformer switches 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
185Companies
5,709Contacts tracked
2,701Verified emails
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The 25 largest transformer switches suppliers based in the United Kingdom

Ranked by team size
Top 25 of 185 company matches for transformer switches 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 matchKenilworth, United KingdomHQ recorded Nov 2, 20261,001-5,0002,496 contacts →

Exact match

“City Electrical Factors Ltd is a private limited company established in 1951.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchRushden, United KingdomHQ recorded Nov 2, 2026201-500146 contacts →

Exact match

“Kempston Controls is a leader in distributing electrical and mechanical industrial control and automation components.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchSutton-in-ashfield, United KingdomHQ recorded Nov 2, 2026201-500125 contacts →

Exact match

“AF Switchgear is one of the UK's largest switchgear manufacturers and set the standard for LV Switchgear and Power Distribution.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
5Exact matchOxford, United KingdomHQ recorded Nov 2, 202651-20090 contacts →

Exact match

“Electricbase has become a leading power in electrical wholesaling.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
6Exact matchLeeds, United KingdomHQ recorded Nov 2, 202651-20068 contacts →

Exact match

“Electrical Distributors Since 1899.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Nov 2, 202651-20063 contacts →

Exact match

“The British Electrical and Manufacturing Company Limited is an independent 3rd generation electrical wholesaler with 11 branches in the UK.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchBlackwood, United KingdomHQ recorded Nov 2, 2026201-50053 contacts →

Exact match

“Hawker Siddeley Switchgear Ltd is a major national and international manufacturer of a range of indoor and outdoor medium voltage distribution and transit switchgear.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchGlasgow, United KingdomHQ recorded Nov 2, 202651-20043 contacts →

Exact match

“NCE Switchgear are electrical switchgear manufacturers that offer the complete electrical solution whether it be motor control, instrumentation or distribution.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchCorby, United KingdomHQ recorded Nov 2, 202611-5041 contacts →

Exact match

“A leading independent electrical distributor specialising in the supply of electrical materials to contractors and the industry.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchPoole, United KingdomHQ recorded Nov 2, 202651-20033 contacts →

Exact match

“We are an electrical wholesale company supplying electrical contractors, installers, facilities managers and commercial and industrial users with a wide range of electrical…”

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

Exact match

“With our extensive range of switchgear and control products, RSE Control Systems (TCS) can meet the complex and varying needs of customers.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
17Exact 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
18Exact 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
19Exact 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
20Exact 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
21Exact matchWatford, United KingdomHQ recorded Nov 2, 202611-5025 contacts →

Exact match

“Prism Power Group is a global Switchgear and Critical Power Systems provider based in London, UK.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
22Exact matchDunmurry, United KingdomHQ recorded Nov 2, 202651-20023 contacts →

Exact match

“Century Electrical Wholesale Ltd.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
23Exact matchHove, United KingdomHQ recorded Nov 2, 202651-20021 contacts →

Exact match

“L.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
24Exact matchIlminster, United KingdomHQ recorded Nov 2, 202611-5021 contacts →

Exact match

“Knight Electrical Switchgear Ltd supply, manufacture and install low voltage switchgear and electrical control panels.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
25Exact matchLeicester, United KingdomHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase

Showing 25 of 185 transformer switches suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,701 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer switches suppliers based in the United Kingdom at a glance

As of Nov 2, 2026
47.3%Verified-email coverage
30.9Average contacts per company
11-50Median size (employees)
5.9%Largest-city concentration · London
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
78
51-200
27
201-500
4
501-1,000
2
1,001-5,000
3
10001+
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 185 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 “transformer switches 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 2,701 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 “transformer switches suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformer switches suppliers are there based in the United Kingdom?

RevenueBase identified 185 company matches for transformer switches 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?

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

Which city has the most transformer switches suppliers?

London leads with 11 company records, followed by Belfast (4) and Leeds (4).

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 2,701 professional contacts with verified work emails tracked across these 185 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.

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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.