Company lists · Data refreshed November 2026
Top 25 Underground rail contractors worldwide
RevenueBase identified 865 company matches for underground rail contractors worldwide as of November 2026 and tracks 41,212 professional contacts across them, including 12,247 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for underground rail contractors worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for underground rail contractors follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 25 largest underground rail contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,407 contacts → | ||||
Exact match “At John Holland, our purpose is simple: we transform lives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,900 contacts → | ||||
Exact match “ABV Rock Group is a construction contractor that operates in several interlinked sectors covering buildings and civil works, and acts as a principal and specialist contractor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,686 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 1,396 contacts → | ||||
Exact match “The Lane Construction Corporation is one of America’s leading construction companies, specializing in large, complex civil infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 1,188 contacts → | ||||
Exact match “With more than 90 years’ experience in France and internationally, TSO (subsidiary of NGE) puts its expertise to work on: • rail services resumed between Oloron and Bedous • track…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 821 contacts → | ||||
Exact match “Since entering the construction market in 1935, VolkerRail has become one of the UK’s leading multidisciplinary railway infrastructure contractors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 761 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 756 contacts → | ||||
Exact match “RailWorks builds and maintains rail transportation infrastructure that keeps people and goods moving across the United States and Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 561 contacts → | ||||
Exact match “Die Wayss & Freytag Ingenieurbau AG ist eines der führenden deutschen Bauunternehmen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 544 contacts → | ||||
Exact match “RailPros was founded in and is exclusively focused on providing rail and transit engineering and construction services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 536 contacts → | ||||
Exact match “QTS is one of the country’s leading railways contractors, founded by MD, Alan McLeish.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 470 contacts → | ||||
Exact match “Salcef is an Italian industrial group active on the international market, specializing in the renewal and construction of railway infrastructures, tram and metro networks.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 442 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 402 contacts → | ||||
Exact match “En GEOVITA somos líderes en construcción y desarrollo subterráneo, con un enfoque al futuro e innovación, que surge en el año 1989 especializándose en operaciones para la minería…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 344 contacts → | ||||
Exact match “SAK Construction is one of the largest privately held pipeline rehabilitation and tunneling contractors in the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 327 contacts → | ||||
Exact match “Halmar International, where for more than 60 years the future of transportation infrastructure is built.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 318 contacts → | ||||
Exact match “Tunnelcraft Ltd is currently working for the BAM Nuttall.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 314 contacts → | ||||
Exact match “Delve Underground is a leader in heavy civil engineering, serving the transportation, water, wastewater, and energy industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 310 contacts → | ||||
Exact match “SYSTRA är en av världens ledande aktörer inom infrastrukturlösningar för höghastighetsjärnväg, metro, tunnelbana, spårväg, väg & trafik och flygplats.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 305 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 279 contacts → | ||||
Exact match “Constructora Gardilcic S.A is a construction company based out of Calle Laguna del Marquesado Nª 19, Nave 16 Edificio Adriana 1ª Planta, Polígono Industrial La Resina…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 273 contacts → | ||||
Exact match “Arizona Pipeline Company (APC) is a leading underground utility contractor, delivering critical infrastructure with a commitment to safety, quality, and long-term performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 261 contacts → | ||||
Exact match “General contracting company specialising in the construction of tunnels and microtunnels, BESSAC has been building underground structures for 50 years to serve a variety of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 234 contacts → | ||||
Exact match “Martinus is an Australian owned, industry leading, full-service railway infrastructure company that builds and maintains large scale railways and intermodals across Australia, New…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 232 contacts → | ||||
Exact match “Specialist Groundwork, Civil Engineering, RC Frames, Architectural Concrete, Rail & Aviation subcontractor based in West London.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “underground rail contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 865 underground rail contractors worldwide
See the full list, filter by size, metro and specialty, and access 12,247 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Underground rail contractors worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for underground rail contractors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “underground rail contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 12,247 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Underground rail contractors by location
6 lists · largest firstEvery Underground rail contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underground rail contractors based in the United States226
- Underground rail contractors based in the United Kingdom82
- Underground rail contractors based in Australia67
- Underground rail contractors based in Italy49
- Underground rail contractors based in Germany42
- Underground rail contractors based in Canada40
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “underground rail contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many underground rail contractors are there worldwide?
RevenueBase identified 865 company matches for underground rail contractors worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
John Holland tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most underground rail contractors?
The United States leads with 226 companies, followed by the United Kingdom (82) and Australia (67). Every underground rail contractors list by country and city is linked on this page.
Which city has the most underground rail contractors?
London leads with 12 company records, followed by Rome (10) and Naples (7).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,247 professional contacts with verified work emails tracked across these 865 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 865 underground rail contractors worldwide. Start with a free account, no credit card.
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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 SmartSearch, 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.
More company lists
Company intelligence · public preview
Top 25 underground rail contractors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 865 matching company records for underground rail contractors worldwide, with 41,212 tracked contacts and 12,247 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 underground rail contractors worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  John Hollandjohnholland.com.auHQ: Melbourne Cbd, AustraliaReported employees: 5,001-10,000 | Melbourne Cbd, Australia | 5,001-10,000 | Exact match | 6,407 contacts → |
“At John Holland, our purpose is simple: we transform lives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ABV Rock Groupabvrock.comHQ: Riyadh, Saudi ArabiaReported employees: 5,001-10,000 | Riyadh, Saudi Arabia | 5,001-10,000 | Exact match | 1,900 contacts → |
“ABV Rock Group is a construction contractor that operates in several interlinked sectors covering buildings and civil works, and acts as a principal and specialist contractor.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Italferr S.P.Aitalferr.itHQ: Rome, ItalyReported employees: 1,001-5,000 | Rome, Italy | 1,001-5,000 | Exact match | 1,686 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  The Lane Construction Corporationlaneconstruct.comHQ: Charlotte, VA, United StatesReported employees: 1,001-5,000 | Charlotte, VA, United States | 1,001-5,000 | Exact match | 1,396 contacts → |
“The Lane Construction Corporation is one of America’s leading construction companies, specializing in large, complex civil infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  TSOtso.frHQ: Chelles, FranceReported employees: 1,001-5,000 | Chelles, France | 1,001-5,000 | Exact match | 1,188 contacts → |
“With more than 90 years’ experience in France and internationally, TSO (subsidiary of NGE) puts its expertise to work on: • rail services resumed between Oloron and Bedous • track…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Volkerrail LTDvolkerrail.co.ukHQ: Doncaster, United KingdomReported employees: 1,001-5,000 | Doncaster, United Kingdom | 1,001-5,000 | Exact match | 821 contacts → |
“Since entering the construction market in 1935, VolkerRail has become one of the UK’s leading multidisciplinary railway infrastructure contractors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Ghellaghella.comHQ: Rome, ItalyReported employees: 5,001-10,000 | Rome, Italy | 5,001-10,000 | Exact match | 761 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Railworks Corporationrailworks.comHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 756 contacts → |
“RailWorks builds and maintains rail transportation infrastructure that keeps people and goods moving across the United States and Canada.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Wayss & Freytag Ingenieurbau AGwf-ib.deHQ: Frankfurt, GermanyReported employees: 1,001-5,000 | Frankfurt, Germany | 1,001-5,000 | Exact match | 561 contacts → |
“Die Wayss & Freytag Ingenieurbau AG ist eines der führenden deutschen Bauunternehmen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Railprosrailpros.comHQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 544 contacts → |
“RailPros was founded in and is exclusively focused on providing rail and transit engineering and construction services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  QTS Groupqtsgroup.comHQ: Strathaven, United KingdomReported employees: 501-1,000 | Strathaven, United Kingdom | 501-1,000 | Exact match | 536 contacts → |
“QTS is one of the country’s leading railways contractors, founded by MD, Alan McLeish.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Salcef Groupsalcef.comHQ: Rome, ItalyReported employees: 1,001-5,000 | Rome, Italy | 1,001-5,000 | Exact match | 470 contacts → |
“Salcef is an Italian industrial group active on the international market, specializing in the renewal and construction of railway infrastructures, tram and metro networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  OSSAossaint.comHQ: San Sebastián De Los Reyes, SpainReported employees: 501-1,000 | San Sebastián De Los Reyes, Spain | 501-1,000 | Exact match | 442 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Geovita Salfacorpgeovita.clHQ: Santiago, ChileReported employees: 1,001-5,000 | Santiago, Chile | 1,001-5,000 | Exact match | 402 contacts → |
“En GEOVITA somos líderes en construcción y desarrollo subterráneo, con un enfoque al futuro e innovación, que surge en el año 1989 especializándose en operaciones para la minería…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  SAK Construction, LLCsakcon.comHQ: O Fallon, AZ, United StatesReported employees: 501-1,000 | O Fallon, AZ, United States | 501-1,000 | Exact match | 344 contacts → |
“SAK Construction is one of the largest privately held pipeline rehabilitation and tunneling contractors in the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Halmar Internationalhalmarinternational.comHQ: Nanuet, NY, United StatesReported employees: 201-500 | Nanuet, NY, United States | 201-500 | Exact match | 327 contacts → |
“Halmar International, where for more than 60 years the future of transportation infrastructure is built.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Tunnelcraft LTDtunnelcraft.co.ukHQ: Basildon, United KingdomReported employees: 51-200 | Basildon, United Kingdom | 51-200 | Exact match | 318 contacts → |
“Tunnelcraft Ltd is currently working for the BAM Nuttall.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Delve Undergrounddelveunderground.comHQ: Seattle, MA, United StatesReported employees: 201-500 | Seattle, MA, United States | 201-500 | Exact match | 314 contacts → |
“Delve Underground is a leader in heavy civil engineering, serving the transportation, water, wastewater, and energy industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Systra Sverigesystra.comHQ: Gothenburg, SwedenReported employees: 501-1,000 | Gothenburg, Sweden | 501-1,000 | Exact match | 310 contacts → |
“SYSTRA är en av världens ledande aktörer inom infrastrukturlösningar för höghastighetsjärnväg, metro, tunnelbana, spårväg, väg & trafik och flygplats.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Frontier-Kemper Constructors, INCfrontierkemper.comHQ: Sylmar, BC, United StatesReported employees: 201-500 | Sylmar, BC, United States | 201-500 | Exact match | 305 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 |  Constructora Gardilcic S.Agardilcic.clHQ: ChileReported employees: 201-500 | Chile | 201-500 | Exact match | 279 contacts → |
“Constructora Gardilcic S.A is a construction company based out of Calle Laguna del Marquesado Nª 19, Nave 16 Edificio Adriana 1ª Planta, Polígono Industrial La Resina…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Arizona Pipeline Companyarizonapipeline.comHQ: Corona, CA, United StatesReported employees: 1,001-5,000 | Corona, CA, United States | 1,001-5,000 | Exact match | 273 contacts → |
“Arizona Pipeline Company (APC) is a leading underground utility contractor, delivering critical infrastructure with a commitment to safety, quality, and long-term performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Bessacbessac.comHQ: St Jory, FranceReported employees: 201-500 | St Jory, France | 201-500 | Exact match | 261 contacts → |
“General contracting company specialising in the construction of tunnels and microtunnels, BESSAC has been building underground structures for 50 years to serve a variety of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Martinusmartinus.com.au HQ: AustraliaReported employees: 1,001-5,000 | Australia | 1,001-5,000 | Exact match | 234 contacts → |
“Martinus is an Australian owned, industry leading, full-service railway infrastructure company that builds and maintains large scale railways and intermodals across Australia, New…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Oliver Connell And SON LTDoliverconnell.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 232 contacts → |
“Specialist Groundwork, Civil Engineering, RC Frames, Architectural Concrete, Rail & Aviation subcontractor based in West London.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 865 company matches
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Underground rail contractors: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
855 records in the displayed employee bands.
10 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 865 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Underground rail contractors by location
6 lists · largest firstEvery Underground rail contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underground rail contractors based in the United States226
- Underground rail contractors based in the United Kingdom82
- Underground rail contractors based in Australia67
- Underground rail contractors based in Italy49
- Underground rail contractors based in Germany42
- Underground rail contractors based in Canada40
Questions about this company list
What does Exact match mean for underground rail contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many underground rail contractors did RevenueBase find worldwide?
The saved snapshot records 865 matching company records, 41,212 tracked contacts and 12,247 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 underground rail contractors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/underground-rail-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 underground rail contractors worldwide
RevenueBase records 865 matching company records for underground rail contractors worldwide, with 41,212 tracked contacts and 12,247 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 underground rail contractors worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | John Hollandjohnholland.com.au HQ: Melbourne Cbd, AustraliaReported employees: 5,001-10,000 | Melbourne Cbd, Australia | 5,001-10,000 | Exact match | 6,407 contacts → |
“At John Holland, our purpose is simple: we transform lives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ABV Rock Groupabvrock.com HQ: Riyadh, Saudi ArabiaReported employees: 5,001-10,000 | Riyadh, Saudi Arabia | 5,001-10,000 | Exact match | 1,900 contacts → |
“ABV Rock Group is a construction contractor that operates in several interlinked sectors covering buildings and civil works, and acts as a principal and specialist contractor.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Italferr S.P.Aitalferr.it HQ: Rome, ItalyReported employees: 1,001-5,000 | Rome, Italy | 1,001-5,000 | Exact match | 1,686 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | The Lane Construction Corporationlaneconstruct.com HQ: Charlotte, VA, United StatesReported employees: 1,001-5,000 | Charlotte, VA, United States | 1,001-5,000 | Exact match | 1,396 contacts → |
“The Lane Construction Corporation is one of America’s leading construction companies, specializing in large, complex civil infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | TSOtso.fr HQ: Chelles, FranceReported employees: 1,001-5,000 | Chelles, France | 1,001-5,000 | Exact match | 1,188 contacts → |
“With more than 90 years’ experience in France and internationally, TSO (subsidiary of NGE) puts its expertise to work on: • rail services resumed between Oloron and Bedous • track…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Volkerrail LTDvolkerrail.co.uk HQ: Doncaster, United KingdomReported employees: 1,001-5,000 | Doncaster, United Kingdom | 1,001-5,000 | Exact match | 821 contacts → |
“Since entering the construction market in 1935, VolkerRail has become one of the UK’s leading multidisciplinary railway infrastructure contractors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Ghellaghella.com HQ: Rome, ItalyReported employees: 5,001-10,000 | Rome, Italy | 5,001-10,000 | Exact match | 761 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Railworks Corporationrailworks.com HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 756 contacts → |
“RailWorks builds and maintains rail transportation infrastructure that keeps people and goods moving across the United States and Canada.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Wayss & Freytag Ingenieurbau AGwf-ib.de HQ: Frankfurt, GermanyReported employees: 1,001-5,000 | Frankfurt, Germany | 1,001-5,000 | Exact match | 561 contacts → |
“Die Wayss & Freytag Ingenieurbau AG ist eines der führenden deutschen Bauunternehmen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Railprosrailpros.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 544 contacts → |
“RailPros was founded in and is exclusively focused on providing rail and transit engineering and construction services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | QTS Groupqtsgroup.com HQ: Strathaven, United KingdomReported employees: 501-1,000 | Strathaven, United Kingdom | 501-1,000 | Exact match | 536 contacts → |
“QTS is one of the country’s leading railways contractors, founded by MD, Alan McLeish.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Salcef Groupsalcef.com HQ: Rome, ItalyReported employees: 1,001-5,000 | Rome, Italy | 1,001-5,000 | Exact match | 470 contacts → |
“Salcef is an Italian industrial group active on the international market, specializing in the renewal and construction of railway infrastructures, tram and metro networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | OSSAossaint.com HQ: San Sebastián De Los Reyes, SpainReported employees: 501-1,000 | San Sebastián De Los Reyes, Spain | 501-1,000 | Exact match | 442 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Geovita Salfacorpgeovita.cl HQ: Santiago, ChileReported employees: 1,001-5,000 | Santiago, Chile | 1,001-5,000 | Exact match | 402 contacts → |
“En GEOVITA somos líderes en construcción y desarrollo subterráneo, con un enfoque al futuro e innovación, que surge en el año 1989 especializándose en operaciones para la minería…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | SAK Construction, LLCsakcon.com HQ: O Fallon, AZ, United StatesReported employees: 501-1,000 | O Fallon, AZ, United States | 501-1,000 | Exact match | 344 contacts → |
“SAK Construction is one of the largest privately held pipeline rehabilitation and tunneling contractors in the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Halmar Internationalhalmarinternational.com HQ: Nanuet, NY, United StatesReported employees: 201-500 | Nanuet, NY, United States | 201-500 | Exact match | 327 contacts → |
“Halmar International, where for more than 60 years the future of transportation infrastructure is built.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Tunnelcraft LTDtunnelcraft.co.uk HQ: Basildon, United KingdomReported employees: 51-200 | Basildon, United Kingdom | 51-200 | Exact match | 318 contacts → |
“Tunnelcraft Ltd is currently working for the BAM Nuttall.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Delve Undergrounddelveunderground.com HQ: Seattle, MA, United StatesReported employees: 201-500 | Seattle, MA, United States | 201-500 | Exact match | 314 contacts → |
“Delve Underground is a leader in heavy civil engineering, serving the transportation, water, wastewater, and energy industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Systra Sverigesystra.com HQ: Gothenburg, SwedenReported employees: 501-1,000 | Gothenburg, Sweden | 501-1,000 | Exact match | 310 contacts → |
“SYSTRA är en av världens ledande aktörer inom infrastrukturlösningar för höghastighetsjärnväg, metro, tunnelbana, spårväg, väg & trafik och flygplats.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Frontier-Kemper Constructors, INCfrontierkemper.com HQ: Sylmar, BC, United StatesReported employees: 201-500 | Sylmar, BC, United States | 201-500 | Exact match | 305 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Constructora Gardilcic S.Agardilcic.cl HQ: ChileReported employees: 201-500 | Chile | 201-500 | Exact match | 279 contacts → |
“Constructora Gardilcic S.A is a construction company based out of Calle Laguna del Marquesado Nª 19, Nave 16 Edificio Adriana 1ª Planta, Polígono Industrial La Resina…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Arizona Pipeline Companyarizonapipeline.com HQ: Corona, CA, United StatesReported employees: 1,001-5,000 | Corona, CA, United States | 1,001-5,000 | Exact match | 273 contacts → |
“Arizona Pipeline Company (APC) is a leading underground utility contractor, delivering critical infrastructure with a commitment to safety, quality, and long-term performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Bessacbessac.com HQ: St Jory, FranceReported employees: 201-500 | St Jory, France | 201-500 | Exact match | 261 contacts → |
“General contracting company specialising in the construction of tunnels and microtunnels, BESSAC has been building underground structures for 50 years to serve a variety of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Martinusmartinus.com.au HQ: AustraliaReported employees: 1,001-5,000 | Australia | 1,001-5,000 | Exact match | 234 contacts → |
“Martinus is an Australian owned, industry leading, full-service railway infrastructure company that builds and maintains large scale railways and intermodals across Australia, New…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Oliver Connell And SON LTDoliverconnell.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 232 contacts → |
“Specialist Groundwork, Civil Engineering, RC Frames, Architectural Concrete, Rail & Aviation subcontractor based in West London.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 865 company matches
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Underground rail contractors: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
855 records in the displayed employee bands.
10 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 865 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Underground rail contractors by location
6 lists · largest firstEvery Underground rail contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underground rail contractors based in the United States226
- Underground rail contractors based in the United Kingdom82
- Underground rail contractors based in Australia67
- Underground rail contractors based in Italy49
- Underground rail contractors based in Germany42
- Underground rail contractors based in Canada40
Questions about this company list
What does Exact match mean for underground rail contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many underground rail contractors did RevenueBase find worldwide?
The saved snapshot records 865 matching company records, 41,212 tracked contacts and 12,247 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 underground rail contractors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/underground-rail-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗