Company lists · Data refreshed September 2026

Top 25 Railway infrastructure inspection services based in the United Kingdom

Name: Railway infrastructure 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 17, 2026 360 companies tracked

RevenueBase identified 360 railway infrastructure inspection services headquartered in the United Kingdom as of September 2026 and tracks 9,842 professional contacts across them, including 3,647 with verified work emails. London is the largest hub.

This list covers railway infrastructure 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 17, 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 17, 2026 86% judged on-target in blind review

360Companies

9,842Contacts tracked

3,647Verified emails

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The 25 largest railway infrastructure inspection services based in the United Kingdom

Ranked by team size

Top 25 of 360 railway infrastructure inspection services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to railway infrastructure 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	Colas Rail UK	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	868 contacts →
	Strong evidence “Colas Rail is one of Europe’s leading suppliers of railway infrastructure services, we are award-winning specialists having constructed all forms of railways across Europe and the…” Source: RevenueBase Database · checked Sep 17, 2026
2	Volkerrail LTD	Strong evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	1,001-5,000	767 contacts →
	Strong evidence “Since entering the construction market in 1935, VolkerRail has become one of the UK’s leading multidisciplinary railway infrastructure contractors.” Source: RevenueBase Database · checked Sep 17, 2026
3	Network Rail Consulting	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	582 contacts →
	Partial evidence “Our Rail Experts Have Transformed The Performance Of Britain’s Railway…They Can Help You Transform Yours Network Rail Consulting is the wholly owned international consultancy arm…” Source: RevenueBase Database · checked Sep 17, 2026
4	Story Contracting Limited	Indirect evidence	Carlisle, United KingdomHQ checked Sep 17, 2026	501-1,000	577 contacts →
	Indirect evidence “With regional offices across England and Scotland, Story is highly respected nationally for providing award-winning rail, plant and construction solutions.” Source: RevenueBase Database · checked Sep 17, 2026
5	QTS Group	Partial evidence	Strathaven, United KingdomHQ checked Sep 17, 2026	501-1,000	486 contacts →
	Partial evidence “QTS is one of the country’s leading railways contractors, founded by MD, Alan McLeish.” Source: RevenueBase Database · checked Sep 17, 2026
6	Bridgeway Consulting LTD	Indirect evidence	Nottingham, United KingdomHQ checked Sep 17, 2026	501-1,000	284 contacts →
	Indirect evidence “Bridgeway Consulting Ltd is one of the leading civil engineering contractors and HSQE specialists in the UK today.” Source: RevenueBase Database · checked Sep 17, 2026
7	Dyer & Butler	Partial evidence	Southampton, United KingdomHQ checked Sep 17, 2026	501-1,000	266 contacts →
	Partial evidence “Founded in 1979, Dyer & Butler is a multi-disciplined engineering services specialist focused on transport infrastructure including airports, rail and underground.” Source: RevenueBase Database · checked Sep 17, 2026
8	Cleshar	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	236 contacts →
	Partial evidence “Cleshar delivers multidisciplinary services to the rail infrastructure sector.” Source: RevenueBase Database · checked Sep 17, 2026
9	Carnell	Partial evidence	Penkridge, United KingdomHQ checked Sep 17, 2026	201-500	209 contacts →
	Partial evidence “Carnell provide specialist maintenance and support services that help ensure safety and efficiency for the UK’s highway infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
10	Quattro Plant LTD	Partial evidence	Stratford, United KingdomHQ checked Sep 17, 2026	501-1,000	202 contacts →
	Partial evidence “Quattro Group is an infrastructure specialist, providing professionally operated equipment services to the rail, road and construction industries, nationwide, 24-7.” Source: RevenueBase Database · checked Sep 17, 2026
11	RSS Infrastructure LTD	Partial evidence	Birmingham, United KingdomHQ checked Sep 17, 2026	1,001-5,000	186 contacts →
	Partial evidence “RSS Infrastructure (RSSI) is an award-winning multi-disciplinary service provider for the rail, construction and utilities sectors.” Source: RevenueBase Database · checked Sep 17, 2026
12	Adcomms	Partial evidence	Scunthorpe, United KingdomHQ checked Sep 17, 2026	201-500	155 contacts →
	Partial evidence “ADComms is a leading provider of intelligent telecoms infrastructure and On-Train solutions for the UK rail industry.” Source: RevenueBase Database · checked Sep 17, 2026
13	XEIAD	Partial evidence	Ilkeston, United KingdomHQ checked Sep 17, 2026	201-500	146 contacts →
	Partial evidence “XEIAD specialise in the provision of qualified and experienced inspection engineers for difficult access inspection, reporting and assessment.” Source: RevenueBase Database · checked Sep 17, 2026
14	TES 2000 LTD	Indirect evidence	Colchester, United KingdomHQ checked Sep 17, 2026	201-500	142 contacts →
	Indirect evidence “TES Ltd is a long established, highly regarded contractor to the rail industry.” Source: RevenueBase Database · checked Sep 17, 2026
15	Trackwork Limited	Partial evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	201-500	141 contacts →
	Partial evidence “Trackwork Ltd is a specialist rail infrastructure engineering company providing the following services & products: • Track renewals, remodelling, installation & maintenance.” Source: RevenueBase Database · checked Sep 17, 2026
16	Arriva Traincare	Indirect evidence	Crewe, United KingdomHQ checked Sep 17, 2026	51-200	129 contacts →
	Indirect evidence “Arriva TrainCare is a leading UK train maintenance company based in Crewe, with five strategically located depots throughout the country (Crewe, Bristol Barton Hill, Eastleigh…” Source: RevenueBase Database · checked Sep 17, 2026
17	Loram UK LTD	Indirect evidence	Derby, United KingdomHQ checked Sep 17, 2026	51-200	111 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Freyssinet UK	Indirect evidence	Telford, United KingdomHQ checked Sep 17, 2026	51-200	84 contacts →
	Indirect evidence “Freyssinet is a leading specialist contractor for the repair, refurbishment and protection of structures, from bridges through to highways, rail, marine and nuclear sectors of the…” Source: RevenueBase Database · checked Sep 17, 2026
19	Aegis Rail	Indirect evidence	Derby, United KingdomHQ checked Sep 17, 2026	51-200	79 contacts →
	Indirect evidence “AEGIS is a member of the IKOS Group, a global consultancy business with its Headquarters in Paris, France.” Source: RevenueBase Database · checked Sep 17, 2026
20	PBH Rail Group	Indirect evidence	York, United KingdomHQ checked Sep 17, 2026	51-200	77 contacts →
	Indirect evidence “PBH employs a dedicated specialist survey team operating throughout the UK.” Source: RevenueBase Database · checked Sep 17, 2026
21	DJ Civil Engineering Limited	Indirect evidence	Oldham, United KingdomHQ checked Sep 17, 2026	201-500	76 contacts →
	Indirect evidence “DJ CIVIL ENGINEERING LIMITED has earned the reputation of being an organisation that prioritises the demands and requirements of its clients and the safety of its employees.” Source: RevenueBase Database · checked Sep 17, 2026
22	CK Rail	Indirect evidence	Chesterfield, United KingdomHQ checked Sep 17, 2026	51-200	72 contacts →
	Indirect evidence “CK Rail blends over 70 years of combined civil engineering and construction services, with expertise from former Network Rail trained staff.” Source: RevenueBase Database · checked Sep 17, 2026
23	Balvac LTD	Partial evidence	Liverpool, United KingdomHQ checked Sep 17, 2026	51-200	66 contacts →
	Partial evidence “As a trusted expert, Balvac sustainably extends the life of our nation’s infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
24	DB ESG	Indirect evidence	Derby, United KingdomHQ checked Sep 17, 2026	51-200	66 contacts →
	Indirect evidence “DB ESG, established in 1995, is a specialist provider of rolling stock engineering solutions for the UK rail industry.” Source: RevenueBase Database · checked Sep 17, 2026
25	SEP Rail Services	Partial evidence	Middlesbrough, United KingdomHQ checked Sep 17, 2026	51-200	65 contacts →
	Partial evidence “A unique pre-construction services company, we work with contractors, consultants, construction firms and more, measuring, modelling and engineering the nation’s railways.” Source: RevenueBase Database · checked Sep 17, 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: railway infrastructure 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 railway infrastructure inspection services.
Partial evidence: Its own public description names part of railway infrastructure inspection services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name railway infrastructure 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 360 railway infrastructure inspection services based in the United Kingdom

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Railway infrastructure inspection services based in the United Kingdom at a glance

As of Sep 17, 2026

37.1%Verified-email coverage

27.3Average contacts per company

11-50Median size (employees)

12.8%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

136

11-50

106

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 360 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 railway infrastructure 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 “railway infrastructure 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 railway infrastructure 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 railway infrastructure 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, 3,647 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 17, 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.

Railway infrastructure inspection services by metro

Railway infrastructure inspection services in London46

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 railway infrastructure 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 railway infrastructure inspection services are there based in the United Kingdom?

RevenueBase identified 360 railway infrastructure 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?

Colas Rail UK, headquartered in London, tops this list with the largest team on record.

Which city has the most railway infrastructure inspection services?

London leads with 46 headquartered companies, followed by Derby (16) and Manchester (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 3,647 verified decision-maker contacts tracked across these 360 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 17, 2026.

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Railway infrastructure inspection services by geography

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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.