Company lists · Data refreshed September 2026

Top 25 Substation inspection technology providers based in the United Kingdom

Name: Substation inspection technology providers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 106 companies tracked

RevenueBase identified 106 substation inspection technology providers headquartered in the United Kingdom as of September 2026 and tracks 2,307 professional contacts across them, including 1,251 with verified work emails. London is the largest hub.

This list covers substation inspection technology providers 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 22, 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 22, 2026 86% judged on-target in blind review

106Companies

2,307Contacts tracked

1,251Verified emails

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The 25 largest substation inspection technology providers based in the United Kingdom

Ranked by team size

Top 25 of 106 substation inspection technology providers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to substation inspection technology providers: 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	Megger	Indirect evidence	Dover, United KingdomHQ checked Sep 22, 2026	1,001-5,000	1,113 contacts →
	Indirect evidence “Megger supports the people who keep essential services running.” Source: RevenueBase Database · checked Sep 22, 2026
2	Cyberhawk	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 22, 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 22, 2026
3	Radiodetection LTD	Indirect evidence	Bristol, United KingdomHQ checked Sep 22, 2026	201-500	118 contacts →
	Indirect evidence “Radiodetection is a world leader in the management of critical infrastructure and utilities, providing best in class equipment and solutions, designed to prevent damage, manage…” Source: RevenueBase Database · checked Sep 22, 2026
4	Viper Innovations LTD	Indirect evidence	Portishead, United KingdomHQ checked Sep 22, 2026	51-200	98 contacts →
	Indirect evidence “Viper Innovations is a global engineering specialist delivering intelligent electrical integrity solutions that help organisations optimise performance and prevent failures before…” Source: RevenueBase Database · checked Sep 22, 2026
5	Hvss High Voltage Substation Services LTD	Partial evidence	Watford, United KingdomHQ checked Sep 22, 2026	11-50	55 contacts →
	Partial evidence “HVSS (High Voltage Substation Services) was formed in 2009 specializing in installation and commissioning of High Voltage Substations Systems up to 400kV.” Source: RevenueBase Database · checked Sep 22, 2026
6	Monitra	Indirect evidence	Manchester, United KingdomHQ checked Sep 22, 2026	51-200	51 contacts →
	Indirect 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 22, 2026
7	AISUS	Partial evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	11-50	36 contacts →
	Partial evidence “AISUS provides advanced remote inspection solutions to address critical challenges in topsides, substructure, and subsea infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
8	Substation Engineering Services LTD	Partial evidence	Stafford, United KingdomHQ checked Sep 22, 2026	11-50	36 contacts →
	Partial evidence “Specialising in High Voltage Substation Installation & Commissioning, Site & Project Management, Refurbishment, Maintenance, SES Ltd has established a solid reputation for…” Source: RevenueBase Database · checked Sep 22, 2026
9	I2i Pipelines	Partial evidence	Salford, United KingdomHQ checked Sep 22, 2026	11-50	21 contacts →
	Partial evidence “i2i is a sensor technology company based in Manchester UK that is looking to disrupt the pipeline services sector by innovating simple, smart, in-line tools that combine with new…” Source: RevenueBase Database · checked Sep 22, 2026
10	Site Energy Services Limited	Indirect evidence	Newcastle Under Lyme, United KingdomHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
11	Valen Power Engineering LTD	Indirect evidence	Manchester, United KingdomHQ checked Sep 22, 2026	11-50	19 contacts →
	Indirect evidence “Valen Power Engineering Ltd provides electrical engineering solutions for systems ranging from LV to 400kV.” Source: RevenueBase Database · checked Sep 22, 2026
12	L.C. Switchgear Limited	Indirect evidence	Hove, United KingdomHQ checked Sep 22, 2026	51-200	17 contacts →
	Indirect evidence “L.” Source: RevenueBase Database · checked Sep 22, 2026
13	Winshall LTD	Partial evidence	Llantrisant, United KingdomHQ checked Sep 22, 2026	11-50	17 contacts →
	Partial evidence “Substation Project Support: Project & Site Management, Civils & M&E Installation Teams.” Source: RevenueBase Database · checked Sep 22, 2026
14	Power Engineering Services	Partial evidence	Wortley, United KingdomHQ checked Sep 22, 2026	11-50	16 contacts →
	Partial evidence “Unique in its operations, PES engineers substation equipment at its Leeds-based production facility, providing turnkey private network installation, independent contestable…” Source: RevenueBase Database · checked Sep 22, 2026
15	Redas Engineering & Construction	Partial evidence	Staffordshire, United KingdomHQ checked Sep 22, 2026	11-50	16 contacts →
	Partial evidence “REDAS Engineering & Construction is a team of experienced professionals with more than a decade experience in substation tendering, procurement, design, Installation, and…” Source: RevenueBase Database · checked Sep 22, 2026
16	Elimpus	Indirect evidence	Bellshill, United KingdomHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “We work with power companies to avoid unplanned outages.” Source: RevenueBase Database · checked Sep 22, 2026
17	NDT Global Services LTD	Partial evidence	Preston Farm Industrial Estate, United KingdomHQ checked Sep 22, 2026	11-50	14 contacts →
	Partial evidence “NDT Global Services Limited is a Company specialising in providing a broad spectrum of inspection and test equipment for inspection companies, process plant, manufacturing and…” Source: RevenueBase Database · checked Sep 22, 2026
18	HV Energy Solutions LTD	Partial evidence	Norwich, United KingdomHQ checked Sep 22, 2026	11-50	13 contacts →
	Partial evidence “Our distinct expertise lies in designing, engineering, maintaining, installing, testing and commissioning high-voltage substations, electrical transmission and distribution…” Source: RevenueBase Database · checked Sep 22, 2026
19	The Validation Centre TVC LTD	Partial evidence	Great Yarmouth, United KingdomHQ checked Sep 22, 2026	11-50	12 contacts →
	Partial evidence “TVC is a technology and service company that has been providing safety-critical solutions to industry sectors around the globe since 1995.” Source: RevenueBase Database · checked Sep 22, 2026
20	MET Group Technical	Partial evidence	Manchester, United KingdomHQ checked Sep 22, 2026	51-200	11 contacts →
	Partial 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 22, 2026
21	Bandweaver Technologies	Indirect evidence	Guildford, United KingdomHQ checked Sep 22, 2026	201-500	11 contacts →
	Indirect evidence “With an installed base of over and systems worldwide, Bandweaver’s vision is to be the first choice for integrated distributed fiber optic sensing solutions across the globe.” Source: RevenueBase Database · checked Sep 22, 2026
22	Innovair	Partial evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	1-10	11 contacts →
	Partial evidence “Inspection Redefined – Smarter Insights, Stronger Assets.” Source: RevenueBase Database · checked Sep 22, 2026
23	AIR Control Entech Limited	Strong evidence	Bridge Of Don Industrial Estate, United KingdomHQ checked Sep 22, 2026	11-50	10 contacts →
	Strong evidence “Air Control Entech is a remote inspection technology company focused on innovation, engineering, and practical solutions for complex industrial environments.” Source: RevenueBase Database · checked Sep 22, 2026
24	Independent Substation Services	Indirect evidence	Aylesbury, United KingdomHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “If you need assistance with any High Voltage (HV) and Low Voltage (LV) equipment, then look no further.” Source: RevenueBase Database · checked Sep 22, 2026
25	Transerv Europe Limited	Indirect evidence	Stafford, United KingdomHQ checked Sep 22, 2026	11-50	9 contacts →
	Indirect evidence “Transerv Europe Limited provide specialist technical services associated with all aspects of installation, commissioning and maintenance of power and distribution transformers, to…” Source: RevenueBase Database · checked Sep 22, 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: substation inspection technology providers. 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 substation inspection technology providers.
Partial evidence: Its own public description names part of substation inspection technology providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name substation inspection technology providers. 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 106 substation inspection technology providers based in the United Kingdom

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Substation inspection technology providers based in the United Kingdom at a glance

As of Sep 22, 2026

54.2%Verified-email coverage

21.8Average contacts per company

1-10Median size (employees)

6.6%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 106 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 substation inspection technology providers, 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 “substation inspection technology providers”. 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 substation inspection technology providers), 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 substation inspection technology providers, 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, 1,251 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 22, 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.

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 substation inspection technology providers, 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 substation inspection technology providers are there based in the United Kingdom?

RevenueBase identified 106 substation inspection technology providers 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?

Megger, headquartered in Dover, tops this list with the largest team on record.

Which city has the most substation inspection technology providers?

London leads with 7 headquartered companies, followed by Manchester (5) and Leeds (3).

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 1,251 verified decision-maker contacts tracked across these 106 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 22, 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.