Company lists · Data refreshed September 2026

Top 25 Rail engineering services based in the United Kingdom

Name: Rail engineering 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 619 companies tracked

RevenueBase identified 619 rail engineering services headquartered in the United Kingdom as of September 2026 and tracks 54,105 professional contacts across them, including 23,530 with verified work emails. London is the largest hub.

This list covers rail engineering 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

619Companies

54,105Contacts tracked

23,530Verified emails

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The 25 largest rail engineering services based in the United Kingdom

Ranked by team size

Top 25 of 619 rail engineering 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 rail engineering 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	Network Rail	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 17, 2026	10001+	23,689 contacts →
	Indirect evidence “We’re at the heart of revitalising Britain’s railway, getting people and goods where they need to be and supporting the economy.” Source: RevenueBase Database · checked Sep 17, 2026
2	Hitachi Rail	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	10001+	11,800 contacts →
	Partial evidence “Hitachi Rail is committed to driving a sustainable mobility transition and helping every passenger, customer and community enjoy more connected, seamless and sustainable transport.” Source: RevenueBase Database · checked Sep 17, 2026
3	Greater Anglia	Indirect evidence	East Of England, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,080 contacts →
	Indirect evidence “The new Greater Anglia franchise began operating on 16 October 2016.” Source: RevenueBase Database · checked Sep 17, 2026
4	Colas Rail UK	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	868 contacts →
	Partial 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
5	Amcogiffen	Indirect evidence	Barnsley, United KingdomHQ checked Sep 17, 2026	1,001-5,000	845 contacts →
	Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 17, 2026
6	Volkerrail LTD	Indirect evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	1,001-5,000	767 contacts →
	Indirect 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
7	GB Railfreight	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	593 contacts →
	Partial evidence “GBRf’s team of 1,400 people operate over 1,100 trainloads a week, moving over 20% of Britain’s rail freight with 99% reliability.” Source: RevenueBase Database · checked Sep 17, 2026
8	Aureos	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	583 contacts →
	Partial evidence “Aureos is a multi-disciplinary energy, transport networks specialist and engineering services provider, spanning the design, engineering, installation, maintenance, and crisis…” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Story Contracting Limited	Partial evidence	Carlisle, United KingdomHQ checked Sep 17, 2026	501-1,000	577 contacts →
	Partial 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
11	QTS Group	Indirect evidence	Strathaven, United KingdomHQ checked Sep 17, 2026	501-1,000	486 contacts →
	Indirect evidence “QTS is one of the country’s leading railways contractors, founded by MD, Alan McLeish.” Source: RevenueBase Database · checked Sep 17, 2026
12	Wabtec UK	Indirect evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	1,001-5,000	390 contacts →
	Indirect evidence “Passenger, freight and road vehicle overhaul, upgrade and maintenance provision-DMU, EMU and passenger coach overhaul, refurbishment, upgrade, life extension, maintenance, C6 and…” Source: RevenueBase Database · checked Sep 17, 2026
13	SPL Powerlines Uk&i	Partial evidence	Coatbridge, United KingdomHQ checked Sep 17, 2026	501-1,000	337 contacts →
	Partial evidence “SPL Powerlines UK & I is a leading multi-disciplinary infrastructure specialist, offering end-to-end delivery across both rail and energy sectors with capabilities that set us…” Source: RevenueBase Database · checked Sep 17, 2026
14	ISS LTD	Partial evidence	Salford, United KingdomHQ checked Sep 17, 2026	51-200	286 contacts →
	Partial evidence “The ISS Management team has over 25 years experience of delivering innovative and pro-active solutions to the rail and light-rail industry.” Source: RevenueBase Database · checked Sep 17, 2026
15	Bridgeway Consulting LTD	Partial evidence	Nottingham, United KingdomHQ checked Sep 17, 2026	501-1,000	284 contacts →
	Partial 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
16	Dyer & Butler	Strong evidence	Southampton, United KingdomHQ checked Sep 17, 2026	501-1,000	266 contacts →
	Strong 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
17	Spencer Group	Partial evidence	Hull, United KingdomHQ checked Sep 17, 2026	201-500	247 contacts →
	Partial evidence “Established in 1989 by our Executive Chairman, Charlie Spencer OBE, Spencer Group is one of the UK’s largest independent, family owned multi-disciplinary engineering businesses.” Source: RevenueBase Database · checked Sep 17, 2026
18	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
19	Knorr-Bremse Rail Uk&i	Partial evidence	Melksham, United KingdomHQ checked Sep 17, 2026	501-1,000	235 contacts →
	Partial evidence “Knorr-Bremse Rail Systems (UK) Ltd is a member of the global Knorr-Bremse Group, a world leader in on-board systems and service support for rail vehicles.” Source: RevenueBase Database · checked Sep 17, 2026
20	Pod-Trak	Indirect evidence	Uxbridge, United KingdomHQ checked Sep 17, 2026	201-500	221 contacts →
	Indirect evidence “Pod-Trak is a privately owned, multi-disciplinary infrastructure contractor operating across the UK, Ireland, and Europe since 2007.” Source: RevenueBase Database · checked Sep 17, 2026
21	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
22	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
23	Resonate	Indirect evidence	Derby, United KingdomHQ checked Sep 17, 2026	201-500	172 contacts →
	Indirect evidence “At Resonate, we design, develop and deploy digital railway and connected transport solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	Porterbrook	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	168 contacts →
	Indirect evidence “By working together with our partners, we provide high-quality, sustainable and digitally-enabled rolling stock solutions, ensuring the UK’s railway is safe, reliable, and fit for…” Source: RevenueBase Database · checked Sep 17, 2026
25	Ontrak UK LTD	Indirect evidence	Greenwich, United KingdomHQ checked Sep 17, 2026	201-500	159 contacts →
	Indirect evidence “About Ontrak Recruitment and Training Ontrak Recruitment and Training is a leading temporary staffing agency dedicated to the dynamic railway industry in the United Kingdom.” 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: rail engineering 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 rail engineering services.
Partial evidence: Its own public description names part of rail engineering services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail engineering 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 619 rail engineering services based in the United Kingdom

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Rail engineering services based in the United Kingdom at a glance

As of Sep 17, 2026

43.5%Verified-email coverage

87.4Average contacts per company

11-50Median size (employees)

13.9%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

237

11-50

192

51-200

123

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 619 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 rail engineering 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 “rail engineering 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 rail engineering 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 rail engineering 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, 23,530 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.

Rail engineering services by metro

Rail engineering services in London86

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 rail engineering 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 rail engineering services are there based in the United Kingdom?

RevenueBase identified 619 rail engineering 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?

Network Rail, headquartered in Milton Keynes, tops this list with the largest team on record.

Which city has the most rail engineering services?

London leads with 86 headquartered companies, followed by Derby (23) and Doncaster (15).

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 23,530 verified decision-maker contacts tracked across these 619 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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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.