Company lists · Data refreshed September 2026

Top 25 Electrical distribution inspection services based in the United Kingdom

Name: Electrical distribution inspection services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 2,570 companies tracked

RevenueBase identified 2,570 electrical distribution inspection services headquartered in the United Kingdom as of September 2026 and tracks 12,986 professional contacts across them, including 3,013 with verified work emails. London is the largest hub.

This list covers electrical distribution inspection services headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

2,570Companies

12,986Contacts tracked

3,013Verified emails

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The 25 largest electrical distribution inspection services based in the United Kingdom

Ranked by team size

Top 25 of 2,570 electrical distribution inspection services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to electrical distribution inspection services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Quartzelec Limited	Partial evidence	Rugby, United KingdomHQ checked Sep 16, 2026	501-1,000	412 contacts →
	Partial evidence “Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.” Source: RevenueBase Database · checked Sep 16, 2026
2	Guardian Electrical Compliance LTD	Partial evidence	Sheffield, United KingdomHQ checked Sep 16, 2026	51-200	137 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
3	G & A Barnie Group LTD	Indirect evidence	Inverness, United KingdomHQ checked Sep 16, 2026	201-500	109 contacts →
	Indirect evidence “Premier quality workmanship and personal attention are characteristics of G&A Barnie.” Source: RevenueBase Database · checked Sep 16, 2026
4	Rock Power Connections LTD	Partial evidence	Bromsgrove, United KingdomHQ checked Sep 16, 2026	51-200	105 contacts →
	Partial evidence “Rock Power Connections are experts in electrical connections with a proven track record of quality and safety.” Source: RevenueBase Database · checked Sep 16, 2026
5	GTDS	Partial evidence	Hill, United KingdomHQ checked Sep 16, 2026	51-200	82 contacts →
	Partial evidence “GTDS was established in July 2004 to provide specialist installation and commissioning services to the major manufacturers, National Grid and the Distribution Network Operators…” Source: RevenueBase Database · checked Sep 16, 2026
6	AKD	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 16, 2026	51-200	79 contacts →
	Indirect evidence “AKD’s clients get quick results, normally leading to reduced costs and gaining an improved service.” Source: RevenueBase Database · checked Sep 16, 2026
7	MKE Engineering Group	Partial evidence	Sittingbourne, United KingdomHQ checked Sep 16, 2026	51-200	63 contacts →
	Partial evidence “MKE Engineering (Mid Kent Electrical) is the largest independent engineering service provider of its kind in the South East, operating from 3 different sites covering Kent…” Source: RevenueBase Database · checked Sep 16, 2026
8	AUS LTD	Strong evidence	Clayton West, United KingdomHQ checked Sep 16, 2026	51-200	63 contacts →
	Strong evidence “AUS is a specialist supplier to the electricity distribution and transmission, rail, utility arboricultural, and telecommunications industries.” Source: RevenueBase Database · checked Sep 16, 2026
9	Premier Electrics	Partial evidence	Magherafelt, United KingdomHQ checked Sep 16, 2026	51-200	58 contacts →
	Partial evidence “Premier Electrics have been delivering exciting projects throughout Ireland, UK and Europe since 1993.” Source: RevenueBase Database · checked Sep 16, 2026
10	Lantei	Partial evidence	Preston, United KingdomHQ checked Sep 16, 2026	51-200	53 contacts →
	Partial evidence “We are the first choice trusted partner, supporting businesses in meeting their regulatory electrical testing requirements.” Source: RevenueBase Database · checked Sep 16, 2026
11	The Wiggett Group LTD	Partial evidence	Brentwood, United KingdomHQ checked Sep 16, 2026	201-500	51 contacts →
	Partial evidence “Wiggett Electrical has gone from strength to strength.” Source: RevenueBase Database · checked Sep 16, 2026
12	Monitra	Partial evidence	Manchester, United KingdomHQ checked Sep 16, 2026	51-200	51 contacts →
	Partial evidence “Monitra (formerly HVPD) are experts in the field of Partial Discharge (PD) testing and monitoring of Medium Voltage and High Voltage electrical equipment, which can be performed…” Source: RevenueBase Database · checked Sep 16, 2026
13	NES	Partial evidence	Inverness, United KingdomHQ checked Sep 16, 2026	11-50	51 contacts →
	Partial evidence “NES is an Industrial and Commercial Electrical Engineering and Contracting business, based in the North and North East of Scotland.” Source: RevenueBase Database · checked Sep 16, 2026
14	Lloyd Morris Electrical LTD	Strong evidence	Wrexham, United KingdomHQ checked Sep 16, 2026	51-200	47 contacts →
	Strong evidence “Lloyd Morris Electrical Limited is a company of Electrical Engineers, specialising in the design, manufacture and installation of Electrical Distribution and Control Systems for…” Source: RevenueBase Database · checked Sep 16, 2026
15	The Seaking Group	Partial evidence	Birkenhead, United KingdomHQ checked Sep 16, 2026	51-200	46 contacts →
	Partial evidence “The SeaKing Group offers specialist electrical engineering services to the marine, industrial, commercial, military and offshore sectors.” Source: RevenueBase Database · checked Sep 16, 2026
16	Fixatex LTD	Partial evidence	Hertford, United KingdomHQ checked Sep 16, 2026	51-200	46 contacts →
	Partial evidence “Electrical & Fire Protection Services, Domestic & Commercial.” Source: RevenueBase Database · checked Sep 16, 2026
17	Electriql	Partial evidence	Thatcham, United KingdomHQ checked Sep 16, 2026	51-200	43 contacts →
	Partial evidence “ElectriQL leads the way in lighting maintenance, LED installation and electrical compliance testing.” Source: RevenueBase Database · checked Sep 16, 2026
18	Gas-Elec Group	Indirect evidence	Bury St. Edmunds, United KingdomHQ checked Sep 16, 2026	51-200	43 contacts →
	Indirect evidence “The company specialises in being able to provide a bespoke service to the homeowners, landlords, managing agents and the commercial sectors.” Source: RevenueBase Database · checked Sep 16, 2026
19	Slaters Electricals	Strong evidence	Tollbridge Road, United KingdomHQ checked Sep 16, 2026	51-200	42 contacts →
	Strong evidence “Established for over 100 years, Slaters Electricals Ltd are experts in LV and HV power distribution equipment, installation and support solutions.” Source: RevenueBase Database · checked Sep 16, 2026
20	NRT Group	Partial evidence	Banstead, United KingdomHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “Our aim is to be the first choice for electrical and engineering installations.” Source: RevenueBase Database · checked Sep 16, 2026
21	Calbarrie Compliance Services LTD	Partial evidence	Cheltenham, United KingdomHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
22	Cenelec Standards Inspections LTD	Strong evidence	Cramlington, United KingdomHQ checked Sep 16, 2026	51-200	42 contacts →
	Strong evidence “Cenelec Standards Inspections specialise in Electrical, Instrument and Mechanical Hazardous Area Inspection and Maintenance for clients in need of support to comply with the…” Source: RevenueBase Database · checked Sep 16, 2026
23	Norwood Electrical UK LTD	Partial evidence	Lockington, United KingdomHQ checked Sep 16, 2026	51-200	40 contacts →
	Partial evidence “Norwood Electrical (UK) Ltd offer a full range of electrical services and specialises in electrical compliance.” Source: RevenueBase Database · checked Sep 16, 2026
24	F.E.S. EX Limited	Indirect evidence	Grimsby, United KingdomHQ checked Sep 16, 2026	51-200	39 contacts →
	Indirect evidence “Established over 20 years ago by our Chairman, F.E.S.(EX) is a leading provider of a range of E, I&M services for all industries across both hazardous and non- hazardous…” Source: RevenueBase Database · checked Sep 16, 2026
25	Lewden	Strong evidence	Braintree, United KingdomHQ checked Sep 16, 2026	51-200	38 contacts →
	Strong evidence “Lewden, a subsidiary of Palazzoli S.p.A, offers electrical power distribution solutions for industrial, construction, commercial, domestic and event sectors.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: electrical distribution inspection services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names electrical distribution inspection services.
Partial evidence: Its own public description names part of electrical distribution inspection services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical distribution inspection services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,570 electrical distribution inspection services based in the United Kingdom

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Electrical distribution inspection services based in the United Kingdom at a glance

As of Sep 16, 2026

23.2%Verified-email coverage

5.1Average contacts per company

1-10Median size (employees)

5.8%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

1,751

11-50

647

51-200

201-500

501-1,000

1,001-5,000

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 2,570 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among electrical distribution inspection services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “electrical distribution inspection services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names electrical distribution inspection services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among electrical distribution inspection services, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,013 across the full list. 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 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Electrical distribution inspection services by metro

Electrical distribution inspection services in London150
Electrical distribution inspection services in Manchester40
Electrical distribution inspection services in Bristol29
Electrical distribution inspection services in Nottingham29
Electrical distribution inspection services in Sheffield25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names electrical distribution inspection services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many electrical distribution inspection services are there based in the United Kingdom?

RevenueBase identified 2,570 electrical distribution inspection services headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Quartzelec Limited, headquartered in Rugby, tops this list with the largest team on record.

Which city has the most electrical distribution inspection services?

London leads with 150 headquartered companies, followed by Manchester (40) and Bristol (29).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,013 verified decision-maker contacts tracked across these 2,570 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 Smart Search, 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.