Company lists · Data refreshed September 2026

Top 25 Electrical grid inspection companies based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 505 companies tracked

RevenueBase identified 505 electrical grid inspection companies headquartered in the United Kingdom as of September 2026 and tracks 2,168 professional contacts across them, including 672 with verified work emails. London is the largest hub.

This list covers electrical grid inspection companies 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 19, 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 19, 2026 86% judged on-target in blind review

505Companies

2,168Contacts tracked

672Verified emails

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The 25 largest electrical grid inspection companies based in the United Kingdom

Ranked by team size

Top 25 of 505 electrical grid inspection companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical grid inspection companies: 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	Cyberhawk	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	201-500	191 contacts →
	Indirect evidence “Founded in 2008, Cyberhawk™ is the first company in the world to use unmanned vehicles to inspect industrial assets.” Source: RevenueBase Database · checked Sep 19, 2026
2	Guardian Electrical Compliance LTD	Partial evidence	Sheffield, United KingdomHQ checked Sep 19, 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 19, 2026
3	NES	Partial evidence	Inverness, United KingdomHQ checked Sep 19, 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 19, 2026
4	Gas-Elec Group	Indirect evidence	Bury St. Edmunds, United KingdomHQ checked Sep 19, 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 19, 2026
5	Norwood Electrical UK LTD	Partial evidence	Lockington, United KingdomHQ checked Sep 19, 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 19, 2026
6	Intersafe Limited	Partial evidence	Southampton, United KingdomHQ checked Sep 19, 2026	11-50	36 contacts →
	Partial evidence “COMPANY OVERVIEW Based near Southampton, Intersafe are compliance specialists providing a range of electrical testing services for large, commercial sites.” Source: RevenueBase Database · checked Sep 19, 2026
7	Group Management Electrical Surveys Limited	Strong evidence	Halifax, United KingdomHQ checked Sep 19, 2026	11-50	32 contacts →
	Strong evidence “For the last 25 years, Group Management Electrical Surveys have been providing Electrical Inspection, Test and Documentation services to many of the UK's leading companies.” Source: RevenueBase Database · checked Sep 19, 2026
8	Ashby Electrical Limited	Strong evidence	Pelsall, United KingdomHQ checked Sep 19, 2026	11-50	30 contacts →
	Strong evidence “Ashby Electrical provide a complete range of electrical design, installation, testing, inspection and maintenance services nationwide.” Source: RevenueBase Database · checked Sep 19, 2026
9	Industrial Switchgear Services LTD	Partial evidence	Hyde, United KingdomHQ checked Sep 19, 2026	51-200	30 contacts →
	Partial evidence “ISS Ltd are a HV/LV Power Engineering company operating nationwide, undertaking Turnkey Electrical Distribution Projects and Site Service activities, including installation…” Source: RevenueBase Database · checked Sep 19, 2026
10	Firstfield Electrical LTD	Strong evidence	Ipswich, United KingdomHQ checked Sep 19, 2026	11-50	26 contacts →
	Strong evidence “Firstfield Electrical Ltd are specialists in large-scale industrial and commercial electrical installations, control systems, inspections and domestic works.” Source: RevenueBase Database · checked Sep 19, 2026
11	Novus Compliance Services Limited	Strong evidence	Bishop Stortford, United KingdomHQ checked Sep 19, 2026	51-200	21 contacts →
	Strong evidence “At Novus Compliance Services Ltd we specialise in Electrical Testing and Inspection, Maintenance, Installation design, Energy Management and refurbishment for a wide range of…” Source: RevenueBase Database · checked Sep 19, 2026
12	EML Electrical Contractors LTD	Partial evidence	Peterborough, United KingdomHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “Here at EML Electrical we pride ourselves on providing quality installations at a competitive price.” Source: RevenueBase Database · checked Sep 19, 2026
13	HK Engineering LTD	Partial evidence	Melksham, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Partial evidence “HK Engineering Ltd is a leading engineering company specialising in electrical and gas testing and innovative solutions, with a solid commitment to excellence.” Source: RevenueBase Database · checked Sep 19, 2026
14	Citrus Group	Partial evidence	Prescot, United KingdomHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “Citrus is a leading provider of electrical services within the public sector across Northern and Central England.” Source: RevenueBase Database · checked Sep 19, 2026
15	ECS LTD	Partial evidence	Corby, United KingdomHQ checked Sep 19, 2026	51-200	15 contacts →
	Partial evidence “The ECS Group is an award-winning nationwide electrical compliance contractor working in the social housing, public and commercial sectors to keep people safe and businesses…” Source: RevenueBase Database · checked Sep 19, 2026
16	PSS Power Engineering LTD	Partial evidence	Winchester, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “PSS POWER ENGINEERING LTD is a high-voltage electrical engineering company based in South East England, United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
17	Aylesford Electrical Contractors LTD	Partial evidence	Maidstone, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Aylesford Electrical is a specialist testing, maintenance and installation provider based in Kent.” Source: RevenueBase Database · checked Sep 19, 2026
18	Clearwater Electrical LTD	Partial evidence	Portlethen, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Clearwater Electrical Ltd is an Aberdeen-based company consisting of a team of Electrical Engineers with a wealth of experience in Electrical Contracting and Offshore Oil & Gas…” Source: RevenueBase Database · checked Sep 19, 2026
19	AJ Electrical Services	Partial evidence	Fareham, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “AJ Electrical Services are renowned for quality and reliable electrical installations and maintenance within the commercial, industrial and rail industry.” Source: RevenueBase Database · checked Sep 19, 2026
20	MS Electrical Solutions	Partial evidence	Bilton, United KingdomHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “Choose MS Electrical Solutions LTD for all your electrical install needs and benefit from a dependable service, expert support and quality workmanship, with projects delivered on…” Source: RevenueBase Database · checked Sep 19, 2026
21	MET Group Technical	Strong evidence	Manchester, United KingdomHQ checked Sep 19, 2026	51-200	11 contacts →
	Strong evidence “MET Group Technical provide a unique electrical energised inspection service to high & low voltage assets including your Power Distribution, Busbars, Submains & Fixed Wiring.” Source: RevenueBase Database · checked Sep 19, 2026
22	ETS	Partial evidence	East Kilbride, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “ETS are an electrical company who specialise in commercial and industrial projects-Control Panels (Design, Build and Installation)-SWA and cabling glands-Control circuits for…” Source: RevenueBase Database · checked Sep 19, 2026
23	BRS Electrical LTD	Indirect evidence	Worksop, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	O&o Electrical	Strong evidence	Oxford, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Strong evidence “O&O Electrical Ltd offers a complete service from design through to installation, electrical inspection and testing.” Source: RevenueBase Database · checked Sep 19, 2026
25	TNS Electrical Contractors LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “We are TNS Electrical Contractors Ltd and based in East London with over 15 years of experience in the electrical industry.” Source: RevenueBase Database · checked Sep 19, 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 grid inspection companies. 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 grid inspection companies.
Partial evidence: Its own public description names part of electrical grid inspection companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical grid inspection companies. 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 505 electrical grid inspection companies based in the United Kingdom

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Electrical grid inspection companies based in the United Kingdom at a glance

As of Sep 19, 2026

31.0%Verified-email coverage

4.3Average contacts per company

1-10Median size (employees)

6.5%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

366

11-50

109

51-200

201-500

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 505 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 grid inspection companies, 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 grid inspection companies”. 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 grid inspection companies), 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 grid inspection companies, 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, 672 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 19, 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 grid inspection companies by metro

Electrical grid inspection companies in London33

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 grid inspection companies, 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 grid inspection companies are there based in the United Kingdom?

RevenueBase identified 505 electrical grid inspection companies 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?

Cyberhawk, headquartered in Edinburgh, tops this list with the largest team on record.

Which city has the most electrical grid inspection companies?

London leads with 33 headquartered companies, followed by Bristol (7) and Glasgow (7).

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 672 verified decision-maker contacts tracked across these 505 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 19, 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.