Company lists · Data refreshed November 2026

Top 25 Switchgear installation contractors based in the United Kingdom

RevenueBase identified 1,423 company matches for switchgear installation contractors associated with the United Kingdom as of November 2026 and tracks 7,965 professional contacts across them, including 2,438 with verified work emails. London is the largest hub.

This list covers company matches for switchgear installation contractors 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
1,423Companies
7,965Contacts tracked
2,438Verified emails
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The 25 largest switchgear installation contractors based in the United Kingdom

Ranked by team size
Top 25 of 1,423 company matches for switchgear installation contractors 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact 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
11Exact 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
12Exact matchStockton-on-tees, United KingdomHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“Welcome to the CD Engineering Services Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact 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
16Exact 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
17Exact matchGainsborough, United KingdomHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Keeping power, water, and rail moving since 1966.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStafford, United KingdomHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Specialising in High Voltage Substation Installation & Commissioning, Site & Project Management, Refurbishment, Maintenance, SES Ltd has established a solid reputation for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchOmagh, United KingdomHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Lagan Energy Engineering Ltd provides quality assured electrical engineering, contracting and consultancy services to customers on various continents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchTelford, United KingdomHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“For over thirty-five years, Proteus Switchgear has been at the forefront of British manufacturing - specialising in the production of industrial and domestic switchgear with full…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSt Helens, United KingdomHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Burtonwood provide a comprehensive range of power generation and switchgear services to the MOD, public and private sectors both in the UK and Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCheltenham, United KingdomHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“CF Roberts is one of the UK’s leading providers of electrical and mechanical design, installation and maintenance services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPelsall, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Ashby Electrical provide a complete range of electrical design, installation, testing, inspection and maintenance services nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKings Norton, United KingdomHQ recorded Nov 6, 2026201-50032 contacts →

Exact match

“adi Electrical have been delivering high quality and reliable Electrical Installation services for over 25 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMorley, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase

Showing 25 of 1,423 switchgear installation contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,438 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Switchgear installation contractors based in the United Kingdom at a glance

As of Nov 6, 2026
30.6%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
5.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
781
11-50
478
51-200
66
201-500
9
501-1,000
1
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 1,423 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 installation contractors” 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 2,438 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 “switchgear installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many switchgear installation contractors are there based in the United Kingdom?

RevenueBase identified 1,423 company matches for switchgear installation contractors 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?

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

Which city has the most switchgear installation contractors?

London leads with 73 company records, followed by Manchester (25) and Bristol (18).

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 2,438 professional contacts with verified work emails tracked across these 1,423 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.