Company lists · Data refreshed November 2026

Top 25 Switchgear engineering companies based in the United Kingdom

RevenueBase identified 754 company matches for switchgear engineering companies associated with the United Kingdom as of November 2026 and tracks 8,221 professional contacts across them, including 2,886 with verified work emails. London is the largest hub.

This list covers company matches for switchgear engineering companies 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
754Companies
8,221Contacts tracked
2,886Verified emails
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The 25 largest switchgear engineering companies based in the United Kingdom

Ranked by team size
Top 25 of 754 company matches for switchgear engineering companies 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 matchRugby, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchCannock, United KingdomHQ recorded Nov 6, 2026201-500132 contacts →

Exact match

“Electrium is one of the UK's leading electrical groups and since January 2006, has been a wholly owned subsidiary of Siemens Holdings plc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBristol, United KingdomHQ recorded Nov 6, 202651-200129 contacts →

Exact match

“Powered by People.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSutton-in-ashfield, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
6Exact matchOxfordshire, United KingdomHQ recorded Nov 6, 202651-200122 contacts →

Exact match

“Our mission is to excel in the design, installation and maintenance of the electro-technical systems that connect to create fit for purpose building environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNewry, United KingdomHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“ASEE Group is a leader in mechanical and electrical engineering, specialising in generator integration and full-service installations for 45+ years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBromsgrove, United KingdomHQ recorded Nov 6, 202651-200110 contacts →

Exact match

“Rock Power Connections are experts in electrical connections with a proven track record of quality and safety.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSwindon, United KingdomHQ recorded Nov 6, 202651-200109 contacts →

Exact match

“Sinewave are a specialist engineering company who provide High and Low voltage electrical services across the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGlasgow, United KingdomHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“Terasaki is a world class specialist in innovative circuit protection, control and system products for electrical energy distribution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLeeds, United KingdomHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Established in 1979 and located in Leeds in a purpose built 2,400m² design, manufacturing and testing facility, Saftronics specialise in process control systems and LV…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchNottingham, United KingdomHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“Founded in 1870, Blackburn Starling & Company Limited is one of the most renowned names in the UK for the design, fabrication, assembly & testing of LV motor control centres…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMagherafelt, United KingdomHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Premier Electrics have been delivering exciting projects throughout Ireland, UK and Europe since 1993.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBirkenhead, United KingdomHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“The SeaKing Group offers specialist electrical engineering services to the marine, industrial, commercial, military and offshore sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWrexham, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
16Exact matchSidcup, United KingdomHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“RJ Power Group is a specialist electrical contracting business, providing engineering solutions in the power sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWalsall, United KingdomHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“Craig & Derricott is a leading UK engineering and manufacturing company, delivering innovative electrical control, switchgear and rail solutions to customers across the UK and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWeybridge, United KingdomHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Since 1998, Powercor have specialised in every aspect of electrical engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchUlverston, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
20Exact matchBlackwood, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
21Exact matchWatford, United KingdomHQ recorded Nov 6, 202611-5052 contacts →

Exact match

“HVSS (High Voltage Substation Services) was formed in 2009 specializing in installation and commissioning of High Voltage Substations Systems up to 400kV.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact 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
23Exact matchGlasgow, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchBridgend, United KingdomHQ recorded Nov 6, 2026201-50040 contacts →

Exact match

“JW Morris is an electrical and mechanical engineering company providing installation, manufacturing and wholesaling services to industry and commerce for domestic and…”

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

Showing 25 of 754 switchgear engineering companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,886 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Switchgear engineering companies based in the United Kingdom at a glance

As of Nov 6, 2026
35.1%Verified-email coverage
10.9Average contacts per company
11-50Median size (employees)
6.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
340
11-50
275
51-200
79
201-500
12
501-1,000
7
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 754 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 “switchgear engineering companies” 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 2,886 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.

Switchgear engineering companies by metro

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 “switchgear engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many switchgear engineering companies are there based in the United Kingdom?

RevenueBase identified 754 company matches for switchgear engineering companies 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?

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

Which city has the most switchgear engineering companies?

London leads with 51 company records, followed by Manchester (18) and Sheffield (10).

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 2,886 professional contacts with verified work emails tracked across these 754 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.

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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.