Company lists · Data refreshed September 2026

Top 25 Railway tunnel boring contractors based in the United Kingdom

Name: Railway tunnel boring 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 44 companies tracked

RevenueBase identified 44 railway tunnel boring contractors headquartered in the United Kingdom as of September 2026 and tracks 2,737 professional contacts across them, including 827 with verified work emails. London is the largest hub.

This list covers railway tunnel boring 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

44Companies

2,737Contacts tracked

827Verified emails

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The 25 largest railway tunnel boring contractors based in the United Kingdom

Ranked by team size

Top 25 of 44 railway tunnel boring 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 tunnel boring 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	Barhale LTD	Strong evidence	Walsall, United KingdomHQ checked Sep 17, 2026	1,001-5,000	803 contacts →
	Strong evidence “Barhale was formed in 1980 as a specialist tunnelling contractor and grew initially through the successful delivery of projects in the water sector, developing mechanical and…” Source: RevenueBase Database · checked Sep 17, 2026
2	Joseph Gallagher Limited	Strong evidence	Stanford-le-hope, United KingdomHQ checked Sep 17, 2026	501-1,000	487 contacts →
	Strong evidence “Joseph Gallagher is one of the UK's leading Civil Engineering & Tunnelling sub-contractors that has significantly grown over the past 45 years into an international business.” Source: RevenueBase Database · checked Sep 17, 2026
3	Tunnelcraft LTD	Partial evidence	Basildon, United KingdomHQ checked Sep 17, 2026	51-200	275 contacts →
	Partial evidence “Tunnelcraft Ltd is currently working for the BAM Nuttall.” Source: RevenueBase Database · checked Sep 17, 2026
4	TG Tunnelling	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	501-1,000	201 contacts →
	Partial evidence “TG Tunnelling is a tunnelling company based out of 2 Athenaeum Rd, London N20 9AE, United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
5	A E Yates LTD	Strong evidence	Bolton, United KingdomHQ checked Sep 17, 2026	201-500	112 contacts →
	Strong evidence “A E Yates Ltd is a Bolton based £100m turnover Civil Engineering & Tunnelling Contractor, established in 1870, with a long standing reputation for successfully delivering works of…” Source: RevenueBase Database · checked Sep 17, 2026
6	Dr. Sauer & Partners	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “Dr.” Source: RevenueBase Database · checked Sep 17, 2026
7	Active Tunnelling LTD	Strong evidence	Coventry, United KingdomHQ checked Sep 17, 2026	11-50	49 contacts →
	Strong evidence “As an industry leader since 1994, Active Tunnelling is the UK’s most experienced independent Tunnelling contractor specialising in Microtunnelling, Auger Boring, Shaft Sinking…” Source: RevenueBase Database · checked Sep 17, 2026
8	HB Tunnelling LTD	Strong evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	51-200	46 contacts →
	Strong evidence “HB Tunnelling Ltd are a rapidly expanding, innovative company who provide tunnelling solutions include- Guided/Unguided Auger Boring Pipe jacking Box Jacking Shaft Sinking…” Source: RevenueBase Database · checked Sep 17, 2026
9	OTB Engineering	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	42 contacts →
	Partial evidence “OTB is renowned for its expertise and experience in tunnel, construction and geotechnical engineering, and rail assurance.” Source: RevenueBase Database · checked Sep 17, 2026
10	JKL Leeds LTD	Partial evidence	Leeds, United KingdomHQ checked Sep 17, 2026	11-50	39 contacts →
	Partial evidence “JKL are one of the UK's most recognisable names within the tunnelling and civil engineering industries.” Source: RevenueBase Database · checked Sep 17, 2026
11	London Bridge Associates LTD	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	38 contacts →
	Partial evidence “LBA is an engineering consultancy specialising in tunnelling, underground works and heavy civil engineering construction.” Source: RevenueBase Database · checked Sep 17, 2026
12	Charles Brand	Strong evidence	Belfast, United KingdomHQ checked Sep 17, 2026	51-200	27 contacts →
	Strong evidence “Originated in 1829 Charles Brand had a strong track record in Tunnelling, Railway, Marine and Civils sectors having completed projects at London Underground, Ben Crom Dam at…” Source: RevenueBase Database · checked Sep 17, 2026
13	Terra Solutions Limited	Indirect evidence	Newry, United KingdomHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “Terra Solutions are the Trenchless Experts.” Source: RevenueBase Database · checked Sep 17, 2026
14	Tunnel Engineering	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1-10	18 contacts →
	Partial evidence “Tunnel Engineering Ltd is an engineering and management consultancy specialising in tunnelling, shafts, underground works and heavy civil engineering construction.” Source: RevenueBase Database · checked Sep 17, 2026
15	Hypertunnel	Partial evidence	Basingstoke, United KingdomHQ checked Sep 17, 2026	51-200	17 contacts →
	Partial evidence “hyperTunnel is the next generation in tunnelling.” Source: RevenueBase Database · checked Sep 17, 2026
16	Bedi Consulting LTD	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Bedi Consulting offer specialist geotechnical and tunnel engineering consultancy services from design conception through to construction.” Source: RevenueBase Database · checked Sep 17, 2026
17	V. J. Donegan And Co. LTD	Strong evidence	Cheadle Heath, United KingdomHQ checked Sep 17, 2026	51-200	16 contacts →
	Strong evidence “Donegan Civil Engineering are the UK's leading Civil Engineering Contractor; specialising in shaft sinking, pipejacking, tunnelling and timber headings.” Source: RevenueBase Database · checked Sep 17, 2026
18	Allen Watson Limited	Partial evidence	Rowhook, United KingdomHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “Operating since 1984 Allen Watson Limited (AWL) is the UK's leading trenchless solutions specialist offering horizontal directional drilling, guided auger boring or micro…” Source: RevenueBase Database · checked Sep 17, 2026
19	Sub-Tech Contracts LTD	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	7 contacts →
	Strong evidence “Sub-Tech is a civil engineering contractor with over 30 years experience within civil engineering, specialist in four key areas of civil engineering: tunnelling, underpinning…” Source: RevenueBase Database · checked Sep 17, 2026
20	KCL	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “KCL provides a range of consultancy services including- Management - Environmental - Tunnelling KCL distributes world class tunnelling products including- Jacking pipes - Tunnel…” Source: RevenueBase Database · checked Sep 17, 2026
21	Mudtech LTD	Partial evidence	Stafford, United KingdomHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “Great products and services for tunnelling, drilling, mechanised excavation, soil separation, brownfield remediation and dewatering.” Source: RevenueBase Database · checked Sep 17, 2026
22	Innovative Support Systems LTD	Indirect evidence	Barnsley, United KingdomHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “Innovative Support Systems Ltd is a UK based company whose whole work ethic is based around providing- • A product which is UK manufactured to the client requirements • The…” Source: RevenueBase Database · checked Sep 17, 2026
23	Tunnel Engineering Services UK LTD	Partial evidence	Heywood, United KingdomHQ checked Sep 17, 2026	11-50	3 contacts →
	Partial evidence “Tunnel Engineering Services (UK) Ltd has established an enviable reputation for the design and manufacture of tunnelling equipment for the construction industry.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tunnelling Accessories Limited	Partial evidence	St Leonards-on-sea, United KingdomHQ checked Sep 17, 2026	1-10	3 contacts →
	Partial evidence “Supporting the tunnelling and trenchless industry with trusted equipment, tooling and technical expertise.” Source: RevenueBase Database · checked Sep 17, 2026
25	Tunnelbuilder	Partial evidence	Cardiff, United KingdomHQ checked Sep 17, 2026	11-50	1 contacts →
	Partial evidence “Tunnelbuilder.com is a online news source for tunnelling projects worldwide.” 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 tunnel boring 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 tunnel boring contractors.
Partial evidence: Its own public description names part of railway tunnel boring contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name railway tunnel boring 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 44 railway tunnel boring contractors based in the United Kingdom

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Railway tunnel boring contractors based in the United Kingdom at a glance

As of Sep 17, 2026

30.2%Verified-email coverage

62.2Average contacts per company

11-50Median size (employees)

25.0%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 44 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 tunnel boring 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 tunnel boring 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 tunnel boring 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 tunnel boring 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, 827 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.

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 tunnel boring 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 tunnel boring contractors are there based in the United Kingdom?

RevenueBase identified 44 railway tunnel boring 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?

Barhale LTD, headquartered in Walsall, tops this list with the largest team on record.

Which city has the most railway tunnel boring contractors?

London leads with 11 headquartered companies, followed by Leeds (4) and Coventry (2).

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 827 verified decision-maker contacts tracked across these 44 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.