Company lists · Data refreshed September 2026

Top 25 Railway infrastructure contractors based in the United Kingdom

Name: Railway infrastructure contractors 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 1,005 companies tracked

RevenueBase identified 1,005 railway infrastructure contractors headquartered in the United Kingdom as of September 2026 and tracks 56,413 professional contacts across them, including 24,082 with verified work emails. London is the largest hub.

This list covers railway infrastructure contractors 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

1,005Companies

56,413Contacts tracked

24,082Verified emails

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The 25 largest railway infrastructure contractors based in the United Kingdom

Ranked by team size

Top 25 of 1,005 railway infrastructure contractors 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 contractors: 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	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 17, 2026	10001+	23,689 contacts →
	Partial 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	Galliford TRY	Strong evidence	Uxbridge, United KingdomHQ checked Sep 17, 2026	1,001-5,000	3,196 contacts →
	Strong evidence “Galliford Try is a leading UK contractor, and a member of the FTSE 250, passionate about providing high quality buildings and infrastructure for communities across the nation.” Source: RevenueBase Database · checked Sep 17, 2026
3	Clancy	Indirect evidence	Harefield, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,218 contacts →
	Indirect evidence “The Clancy Group was founded in 1958 by Michael Clancy as M.J.” Source: RevenueBase Database · checked Sep 17, 2026
4	Keltbray	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,073 contacts →
	Partial evidence “Keltbray is a UK leading specialist engineering contractor, which offers engineering, construction, demolition, decommissioning, remediation, environmental services and reinforced…” Source: RevenueBase Database · checked Sep 17, 2026
5	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
6	Volkerfitzpatrick	Strong evidence	Hoddesdon, United KingdomHQ checked Sep 17, 2026	1,001-5,000	863 contacts →
	Strong evidence “VolkerFitzpatrick is a multi-disciplinary contractor working in the civil engineering, building, rail, waste and energy infrastructure sectors.” Source: RevenueBase Database · checked Sep 17, 2026
7	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
8	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
9	Eiffage Kier Ferrovial BAM Ekfb	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 17, 2026	1,001-5,000	655 contacts →
	Indirect evidence “EKFB brings together international, market leading technical expertise.” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	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
12	Farrans Construction	Partial evidence	Belfast, United KingdomHQ checked Sep 17, 2026	501-1,000	571 contacts →
	Partial evidence “Farrans is a leading civil engineering and building contractor which specialises in innovative and sustainable solutions for the water, energy, aviation, transportation, marine…” Source: RevenueBase Database · checked Sep 17, 2026
13	VGC Group	Partial evidence	Ruislip, United KingdomHQ checked Sep 17, 2026	1,001-5,000	531 contacts →
	Partial evidence “The VGC Group is the leading recruitment partner to the UK infrastructure industry – ‘uniting talent and expertise to deliver success for all’.” Source: RevenueBase Database · checked Sep 17, 2026
14	QTS Group	Strong evidence	Strathaven, United KingdomHQ checked Sep 17, 2026	501-1,000	486 contacts →
	Strong evidence “QTS is one of the country’s leading railways contractors, founded by MD, Alan McLeish.” Source: RevenueBase Database · checked Sep 17, 2026
15	Colas LTD	Partial evidence	Birmingham Business Park, United KingdomHQ checked Sep 17, 2026	1,001-5,000	459 contacts →
	Partial evidence “Colas is a world leader in the construction and maintenance of transport infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
16	Alun Griffiths Contractors LTD	Partial evidence	Abergavenny, United KingdomHQ checked Sep 17, 2026	201-500	412 contacts →
	Partial evidence “Welcome to / Croeso i Griffiths We are a sustainable civil engineering contractor that helps connect communities through road, rail, water, and utilities.” Source: RevenueBase Database · checked Sep 17, 2026
17	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
18	Jackson Civil Engineering	Partial evidence	Ipswich, United KingdomHQ checked Sep 17, 2026	201-500	294 contacts →
	Partial evidence “Jackson is a straight-talking no nonsense Civil Engineering Contractor.” Source: RevenueBase Database · checked Sep 17, 2026
19	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
20	C3 Construction LTD	Indirect evidence	Leicester, United KingdomHQ checked Sep 17, 2026	201-500	284 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Taziker	Partial evidence	Chorley, United KingdomHQ checked Sep 17, 2026	201-500	283 contacts →
	Partial evidence “Taziker is a multi-discipline specialist contractor, providing protective coatings, structural refurbishments and strengthening throughout the UK.” Source: RevenueBase Database · checked Sep 17, 2026
22	Tunnelcraft LTD	Indirect evidence	Basildon, United KingdomHQ checked Sep 17, 2026	51-200	275 contacts →
	Indirect evidence “Tunnelcraft Ltd is currently working for the BAM Nuttall.” Source: RevenueBase Database · checked Sep 17, 2026
23	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
24	Readypower Group	Partial evidence	Reading, United KingdomHQ checked Sep 17, 2026	501-1,000	265 contacts →
	Partial evidence “The Readypower Group brings together three specialist businesses: Readypower Rail Services, delivering critical infrastructure solutions across the network; Readypower Terrawise…” Source: RevenueBase Database · checked Sep 17, 2026
25	MPB Structures	Strong evidence	Corby, United KingdomHQ checked Sep 17, 2026	1,001-5,000	252 contacts →
	Strong evidence “MPB Structures Limited is a family owned infrastructure and UK top 10 Concrete Frame Contractor with specialities in earthworks, drainage, substructure, reinforced concrete works…” 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 contractors. 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 contractors.
Partial evidence: Its own public description names part of railway infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name railway infrastructure contractors. 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 1,005 railway infrastructure contractors based in the United Kingdom

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Railway infrastructure contractors based in the United Kingdom at a glance

As of Sep 17, 2026

42.7%Verified-email coverage

56.1Average contacts per company

11-50Median size (employees)

8.9%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

333

11-50

326

51-200

224

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 1,005 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 contractors, 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 contractors”. 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 contractors), 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 contractors, 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, 24,082 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 contractors by metro

Railway infrastructure contractors in London89

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 contractors, 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 contractors are there based in the United Kingdom?

RevenueBase identified 1,005 railway infrastructure contractors 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 railway infrastructure contractors?

London leads with 89 headquartered companies, followed by Glasgow (19) and Manchester (16).

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 24,082 verified decision-maker contacts tracked across these 1,005 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.