Company lists · Data refreshed September 2026

Top 25 Electrical system maintenance providers based in the United Kingdom

RevenueBase identified 3,225 company matches for electrical system maintenance providers associated with the United Kingdom as of September 2026 and tracks 15,728 professional contacts across them, including 4,107 with verified work emails. London is the largest hub.

This list covers company matches for electrical system maintenance providers 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 September 19, 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 Sep 19, 2026 How this list was built
3,225Companies
15,728Contacts tracked
4,107Verified emails
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The 25 largest electrical system maintenance providers based in the United Kingdom

Ranked by team size
Top 25 of 3,225 company matches for electrical system maintenance providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 Sep 19, 2026501-1,000412 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 · Sep 19, 2026 · View company records in RevenueBase
2Exact matchSheffield, United KingdomHQ recorded Sep 19, 202651-200137 contacts →

Exact match

“Founded in 2010, Guardian Electrical Compliance Ltd have become the market leaders in terms of Duty Holder guidance, technical & legislative support, site delivery and after sales…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchOxfordshire, United KingdomHQ recorded Sep 19, 202651-200112 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 · Sep 19, 2026 · View company records in RevenueBase
4Exact matchInverness, United KingdomHQ recorded Sep 19, 2026201-500109 contacts →

Exact match

“Premier quality workmanship and personal attention are characteristics of G&A Barnie.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchBromsgrove, United KingdomHQ recorded Sep 19, 202651-200105 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 · Sep 19, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 19, 2026201-50094 contacts →

Exact match

“We’ve been providing fire and electrical compliance services for over 30 years, supporting clients across London and the Southeast with our locally based engineers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchSouthampton, United KingdomHQ recorded Sep 19, 2026201-50083 contacts →

Exact match

“Industry leading Mechanical and Electrical Maintenance Contractor providing essential services to household names within the leisure and retail sectors.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchEdinburgh, United KingdomHQ recorded Sep 19, 202651-20079 contacts →

Exact match

“AKD’s clients get quick results, normally leading to reduced costs and gaining an improved service.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchStoke On Trent, United KingdomHQ recorded Sep 19, 202651-20075 contacts →

Exact match

“Fletcher Moorland Ltd, are the experts in repairing, replacing, or upgrading Electric Motors, Pumps, Air Handling Units, Inverter Drives, Servo Motors, HMIs, PCBs, PSUs and more.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchDurham, United KingdomHQ recorded Sep 19, 202651-20058 contacts →

Exact match

“DFP Services are a leading provider of Fire, Security, Communications, Mechanical and Electrical services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchMagherafelt, United KingdomHQ recorded Sep 19, 202651-20058 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchWombourne, United KingdomHQ recorded Sep 19, 202651-20056 contacts →

Exact match

“01902 894871 Marking its 25th anniversary this year, Orton is a leading provider of electrical, mechanical, installation and maintenance services covering both commercial and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchWolverhampton, United KingdomHQ recorded Sep 19, 2026201-50055 contacts →

Exact match

“Electrical and Mechanical Contractors.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchBrentwood, United KingdomHQ recorded Sep 19, 2026201-50051 contacts →

Exact match

“Wiggett Electrical has gone from strength to strength.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchInverness, United KingdomHQ recorded Sep 19, 202611-5051 contacts →

Exact match

“NES is an Industrial and Commercial Electrical Engineering and Contracting business, based in the North and North East of Scotland.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchWeybridge, United KingdomHQ recorded Sep 19, 202651-20048 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchUpminster, United KingdomHQ recorded Sep 19, 202651-20047 contacts →

Exact match

“M&E Maintenance & Installation Service Provider”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchMilton Keynes, United KingdomHQ recorded Sep 19, 202651-20046 contacts →

Exact match

“Based in Milton Keynes, SOL Services which was established in 2003, provide quality and reliable services in all aspects of commercial electrical installation and commercial…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchBirkenhead, United KingdomHQ recorded Sep 19, 202651-20046 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 · Sep 19, 2026 · View company records in RevenueBase
20Exact matchHertford, United KingdomHQ recorded Sep 19, 202651-20046 contacts →

Exact match

“Electrical & Fire Protection Services, Domestic & Commercial.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchStockton-on-tees, United KingdomHQ recorded Sep 19, 202611-5043 contacts →

Exact match

“Welcome to the CD Engineering Services Ltd.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchThatcham, United KingdomHQ recorded Sep 19, 202651-20043 contacts →

Exact match

“ElectriQL leads the way in lighting maintenance, LED installation and electrical compliance testing.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchTollbridge Road, United KingdomHQ recorded Sep 19, 202651-20042 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 · Sep 19, 2026 · View company records in RevenueBase
24Exact matchBanstead, United KingdomHQ recorded Sep 19, 202651-20042 contacts →

Exact match

“Our aim is to be the first choice for electrical and engineering installations.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchCheltenham, United KingdomHQ recorded Sep 19, 202651-20042 contacts →

Exact match

“Calbarrie Compliance Services Ltd (Calbarrie) is the UK’s market leader in electrical compliance services and has been trading within the Health & Safety and Compliance sectors…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 3,225 electrical system maintenance providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,107 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical system maintenance providers based in the United Kingdom at a glance

As of Sep 19, 2026
26.1%Verified-email coverage
4.9Average contacts per company
1-10Median size (employees)
6.3%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
2,096
11-50
912
51-200
115
201-500
12
501-1,000
4
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 3,225 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 system maintenance providers” 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 4,107 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 September 19, 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 system maintenance providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical system maintenance providers are there based in the United Kingdom?

RevenueBase identified 3,225 company matches for electrical system maintenance providers associated with the United Kingdom as of September 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 electrical system maintenance providers?

London leads with 203 company records, followed by Manchester (45) and Nottingham (37).

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 4,107 professional contacts with verified work emails tracked across these 3,225 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 September 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 3,225 electrical system maintenance providers 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.