Company lists · Data refreshed September 2026

Top 25 Rail tunnel construction companies worldwide

Name: Rail tunnel construction companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 277 companies tracked

RevenueBase identified 277 rail tunnel construction companies worldwide as of September 2026 and tracks 18,624 professional contacts across them, including 7,502 with verified work emails and 0 with mobile numbers. Italy is the largest market and London the largest hub.

This list covers rail tunnel construction companies worldwide, 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. Country and city lists for rail tunnel construction companies follow the table.

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

277Companies

18,624Contacts tracked

7,502Verified emails

0Mobile numbers

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The 25 largest rail tunnel construction companies worldwide

Ranked by team size

Top 25 of 277 rail tunnel construction companies worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to rail tunnel construction companies: 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	Implenia	Partial evidence	Opfikon, SwitzerlandHQ checked Sep 17, 2026	5,001-10,000	3,050 contacts →
	Partial evidence “As Switzerland’s leading construction and real estate service provider, Implenia develops, builds and manages homes, workplaces and infrastructure for future generations in…” Source: RevenueBase Database · checked Sep 17, 2026
2	Italferr S.P.A	Indirect evidence	Rome, ItalyHQ checked Sep 17, 2026	1,001-5,000	2,701 contacts →
	Indirect evidence “At Italferr – a company belonging to the Italian State Railways Group Ferrovie dello Stato Italiane – we have built up a 30 year long experience at the forefront of cutting-edge…” Source: RevenueBase Database · checked Sep 17, 2026
3	Herrenknecht AG	Partial evidence	Schwanau, GermanyHQ checked Sep 17, 2026	1,001-5,000	1,322 contacts →
	Partial evidence “Herrenknecht is a technology and market leader in the area of mechanized tunnelling systems.” Source: RevenueBase Database · checked Sep 17, 2026
4	Barhale LTD	Partial evidence	Walsall, United KingdomHQ checked Sep 17, 2026	1,001-5,000	803 contacts →
	Partial 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
5	Ghella	Strong evidence	Roma, ItalyHQ checked Sep 17, 2026	5,001-10,000	669 contacts →
	Strong evidence “Founded in 1894, Ghella is a major Italian global force recognized for its excellence in the construction of large-scale public infrastructure and expertise in the use of Tunnel…” Source: RevenueBase Database · checked Sep 17, 2026
6	Wayss & Freytag Ingenieurbau AG	Indirect evidence	Frankfurt, GermanyHQ checked Sep 17, 2026	1,001-5,000	504 contacts →
	Indirect evidence “Die Wayss & Freytag Ingenieurbau AG ist eines der führenden deutschen Bauunternehmen.” Source: RevenueBase Database · checked Sep 17, 2026
7	Joseph Gallagher Limited	Partial evidence	Stanford-le-hope, United KingdomHQ checked Sep 17, 2026	501-1,000	487 contacts →
	Partial 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
8	Railpros	Strong evidence	Irving, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	481 contacts →
	Strong evidence “RailPros was founded in and is exclusively focused on providing rail and transit engineering and construction services.” Source: RevenueBase Database · checked Sep 17, 2026
9	OSSA	Strong evidence	San Sebastián De Los Reyes, SpainHQ checked Sep 17, 2026	501-1,000	405 contacts →
	Strong evidence “OSSA is the leading company in the Spanish market in underground projects in Mining, Civil Engineering tunneling (Road, Rail and Subway/Metro tunnels), Underground Hydraulic…” Source: RevenueBase Database · checked Sep 17, 2026
10	Delve Underground	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	201-500	311 contacts →
	Indirect evidence “Delve Underground is a leader in heavy civil engineering, serving the transportation, water, wastewater, and energy industries.” Source: RevenueBase Database · checked Sep 17, 2026
11	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
12	Frontier-Kemper Constructors, INC	Indirect evidence	Sylmar, CA, United StatesHQ checked Sep 17, 2026	201-500	273 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
13	Robbins	Partial evidence	Solon, OH, United StatesHQ checked Sep 17, 2026	501-1,000	264 contacts →
	Partial evidence “With 70 years of innovation and experience, Robbins is the world’s foremost developer and manufacturer of advanced, underground construction machinery.” Source: RevenueBase Database · checked Sep 17, 2026
14	Drill Tech Drilling & Shoring, INC	Partial evidence	Antioch, CA, United StatesHQ checked Sep 17, 2026	201-500	217 contacts →
	Partial evidence “Drill Tech Drilling & Shoring, Inc.(DTDS) is a full service Engineering Contractor founded in 1994 Specializing in tunneling, shafts, deep foundation, ground improvement, and…” Source: RevenueBase Database · checked Sep 17, 2026
15	Amberg Engineering	Indirect evidence	Regensdorf, United StatesHQ checked Sep 17, 2026	51-200	213 contacts →
	Indirect evidence “Amberg Engineering is a specialised engineering firm for the design and project management of underground works.” Source: RevenueBase Database · checked Sep 17, 2026
16	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
17	Eurohinca	Partial evidence	Getafe, SpainHQ checked Sep 17, 2026	51-200	187 contacts →
	Partial evidence “Europea de Hincas Teledirigidas, S.A, EUROHINCA, is a company established in 1996, dedicated to the execution of tunnels using trenchless technology by the methods of pipe jacking…” Source: RevenueBase Database · checked Sep 17, 2026
18	ARX - Geodata	Indirect evidence	Torino, ItalyHQ checked Sep 17, 2026	201-500	166 contacts →
	Indirect evidence “GEODATA is a multi-disciplinary company with an Italian origin and a global footprint, specialized in providing high-quality consultancy services and solutions for the development…” Source: RevenueBase Database · checked Sep 17, 2026
19	Icop I.co.P. S.P.A. Società Benefit	Indirect evidence	Basiliano, FranceHQ checked Sep 17, 2026	1,001-5,000	158 contacts →
	Indirect evidence “Fondata nel 1920 dalla famiglia Petrucco, ICOP è una società di ingegneria del sottosuolo attiva in ambito nazionale ed internazionale nei settori delle fondazioni speciali, del…” Source: RevenueBase Database · checked Sep 17, 2026
20	Align JV	Partial evidence	Rickmansworth, United KingdomHQ checked Sep 17, 2026	201-500	155 contacts →
	Partial evidence “Align is a joint venture of three international and privately-owned infrastructure companies; Bouygues Travaux Publics, a subsidiary of Bouygues Construction, Sir Robert McAlpine…” Source: RevenueBase Database · checked Sep 17, 2026
21	Systra Subterra	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	137 contacts →
	Partial evidence “SYSTRA SUBTERRA is an independent private corporate group, unconnected to construction companies, suppliers of equipment or services and financial companies that now bellows to…” Source: RevenueBase Database · checked Sep 17, 2026
22	Cipa S.P.A	Indirect evidence	Roma, ItalyHQ checked Sep 17, 2026	201-500	134 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
23	Pizzarotti SA	Partial evidence	Bellinzona, SwitzerlandHQ checked Sep 17, 2026	51-200	120 contacts →
	Partial evidence “Impresa di costruzioni attiva in tutto il territorio elvetico nella realizzazione di infrastrutture stradali e ferroviarie, scavi per tunnel e lavori sotterranei, edilizia civile…” Source: RevenueBase Database · checked Sep 17, 2026
24	A E Yates LTD	Partial evidence	Bolton, United KingdomHQ checked Sep 17, 2026	201-500	112 contacts →
	Partial 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
25	Brookville Equipment Corporation	Partial evidence	Brookville, PA, United StatesHQ checked Sep 17, 2026	201-500	108 contacts →
	Partial evidence “Brookville Equipment was established in 1918 and over its rich history has primarily been involved in the manufacture of rail mounted vehicles.” 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 tunnel construction companies. 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 tunnel construction companies.
Partial evidence: Its own public description names part of rail tunnel construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail tunnel construction companies. 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 277 rail tunnel construction companies worldwide

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Rail tunnel construction companies worldwide at a glance

As of Sep 17, 2026

40.3%Verified-email coverage

67.2Average contacts per company

11-50Median size (employees)

3.2%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

10001+

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 tunnel construction companies, 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.
Coverage: 7 countries, largest first: Italy, Germany, the United States, the United Kingdom, Australia, Spain, Switzerland. Country and city lists for rail tunnel construction companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “rail tunnel construction companies”. 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 tunnel construction companies), 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 tunnel construction companies, and records with no verified work email.
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, 7,502 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 tunnel construction companies by location

7 lists · largest first

Every Rail tunnel construction companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 tunnel construction companies, 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 tunnel construction companies are there worldwide?

RevenueBase identified 277 rail tunnel construction companies worldwide 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?

Implenia, headquartered in Opfikon, tops this list with the largest team on record.

Which country has the most rail tunnel construction companies?

Italy leads with 56 companies, followed by Germany (51) and the United States (47). Every rail tunnel construction companies list by country and city is linked on this page.

Which city has the most rail tunnel construction companies?

London leads with 9 headquartered companies, followed by Madrid (8) and Sydney (8).

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 7,502 verified decision-maker contacts tracked across these 277 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.