Company lists · Data refreshed November 2026
Top 25 Tunnel inspection services worldwide
RevenueBase identified 603 company matches for tunnel inspection services worldwide as of November 2026 and tracks 8,707 professional contacts across them, including 3,008 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for tunnel inspection services 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 tunnel inspection services 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 tunnel inspection services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 539 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 498 contacts → | ||||
Exact match “Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 452 contacts → | ||||
Exact match “A pioneer in structural health monitoring, SITES is a specialized engineering company dedicated to the performance and lifespan of infrastructures.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 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 | |||||
| 5 | 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 | |||||
| 6 | 196 contacts → | ||||
Exact match “BEMO Tunnelling is specialised in the construction and refurbishment of civil engineering structures of all kinds.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 196 contacts → | ||||
Exact match “TG Tunnelling is a tunnelling company based out of 2 Athenaeum Rd, London N20 9AE, United Kingdom.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 174 contacts → | ||||
Exact match “TESPL is an industry-leading provider of trenchless services with India's largest fleet of 33 HDD and Microtunneling rigs of capacity ranging from 40 to 500 tons.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 134 contacts → | ||||
Exact match “SYSTRA SUBTERRA is an independent private corporate group, unconnected to construction companies, suppliers of equipment or services and financial companies that now bellows to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 133 contacts → | ||||
Exact match “XEIAD specialise in the provision of qualified and experienced inspection engineers for difficult access inspection, reporting and assessment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 124 contacts → | ||||
Exact match “Delivering Solutions with Integrity, Reliability and Excellence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 104 contacts → | ||||
Exact match “CTLGroup is a globally recognized engineering consulting and testing firm specializing in structural condition assessment, forensic engineering, and construction materials testing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 95 contacts → | ||||
Exact match “With over 15 years of experience in mechanized tunneling and heavy machinery & equipment, Trakkom Engineering offers sustainable global solutions for the partners all over the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 85 contacts → | ||||
Exact match “A recognized leader, HVEA Engineers specializes in the comprehensive design and construction inspection of transportation infrastructure projects throughout the Hudson Valley and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 77 contacts → | ||||
Exact match “Rocksoil is design, consulting and technical assistance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 71 contacts → | ||||
Exact match “Com mais de m³ de túneis escavados em seu portfólio de obras, a Pedra Branca Escavações tornou-se referência em qualidade no setor de infraestrutura.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 68 contacts → | ||||
Exact match “TORNGATS is a Canadian company, based in Quebec, mainly offering specialized services in the field of materiels inspection and integrity evaluation- Advanced non-destructive…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 65 contacts → | ||||
Exact match “DIADES est la société du groupe SETEC spécialisée dans le diagnostic des structures et a pour missions principales - l’ingénierie du diagnostic, de la maintenance, les études de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 65 contacts → | ||||
Exact match “HB Tunnelling Ltd are a rapidly expanding, innovative company who provide tunnelling solutions include- Guided/Unguided Auger Boring Pipe jacking Box Jacking Shaft Sinking…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 53 contacts → | ||||
Exact match “This year marks 25 years of engineering excellence at Gall Zeidler Consultants (GZ)-a global leader in tunnel design, engineering, geotechnics, tunnel rehabilitation, and program…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 53 contacts → | ||||
Exact match “Alta Vista Solutions is now Atlas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 52 contacts → | ||||
Exact match “The Technicore Group of Companies, founded in 1994, is 100% owned and operated in Canada, and has grown to become one of the most vertically integrated tunnelling businesses in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 52 contacts → | ||||
Exact match “As an industry leader since 1994, Active Tunnelling is the UK’s most experienced independent Tunnelling contractor specialising in Microtunnelling, Auger Boring, Shaft Sinking…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 49 contacts → | ||||
Exact match “SAUDI TUNNELING COMPANY FOR CONTRACTING (STCC) is a subsidiary of Hassan Allam Holding, one of the leading groups in Egypt and the MENA region, with a special focus on engineering…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 48 contacts → | ||||
Exact match “KLM Engineering Incorporated, out of Woodbury, Minnesota, is a structural engineering and inspection firm staffed by experienced, registered professionals at all positions.” 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 “tunnel inspection services”. 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 603 tunnel inspection services worldwide
See the full list, filter by size, metro and specialty, and access 3,008 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Tunnel inspection services 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 tunnel inspection services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “tunnel inspection services” 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 3,008 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.
Tunnel inspection services by location
4 lists · largest firstEvery Tunnel inspection services 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 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 “tunnel inspection services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many tunnel inspection services are there worldwide?
RevenueBase identified 603 company matches for tunnel inspection services 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?
Joseph Gallagher Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most tunnel inspection services?
The United States leads with 120 companies, followed by France (43) and the United Kingdom (29). Every tunnel inspection services list by country and city is linked on this page.
Which city has the most tunnel inspection services?
New York leads with 7 company records, followed by Sao Paulo (6) and Singapore (6).
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 3,008 professional contacts with verified work emails tracked across these 603 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 603 tunnel inspection services 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 tunnel inspection services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 603 matching company records for tunnel inspection services worldwide, with 8,707 tracked contacts and 3,008 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 tunnel inspection services 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 |  Joseph Gallagher Limitedjosephgallagher.co.ukHQ: Stanford-le-hope, United KingdomReported employees: 501-1,000 | Stanford-le-hope, United Kingdom | 501-1,000 | Exact match | 539 contacts → |
“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.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Socotec USsocotec.usHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 498 contacts → |
“Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Sites SAS Francesites.frHQ: Rueil-malmaison, FranceReported employees: 201-500 | Rueil-malmaison, France | 201-500 | Exact match | 452 contacts → |
“A pioneer in structural health monitoring, SITES is a specialized engineering company dedicated to the performance and lifespan of infrastructures.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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. | |||||
| 5 |  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. | |||||
| 6 |  Bemo Tunnellingbemo.netHQ: Innsbruck, AustriaReported employees: 501-1,000 | Innsbruck, Austria | 501-1,000 | Exact match | 196 contacts → |
“BEMO Tunnelling is specialised in the construction and refurbishment of civil engineering structures of all kinds.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  TG Tunnellingtgtunnelling.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 196 contacts → |
“TG Tunnelling is a tunnelling company based out of 2 Athenaeum Rd, London N20 9AE, United Kingdom.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Trenchless Engineering Services PVT LTDtrenchless.inHQ: Delhi, IndiaReported employees: 201-500 | Delhi, India | 201-500 | Exact match | 174 contacts → |
“TESPL is an industry-leading provider of trenchless services with India's largest fleet of 33 HDD and Microtunneling rigs of capacity ranging from 40 to 500 tons.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Systra Subterrasystra-subterra.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 134 contacts → |
“SYSTRA SUBTERRA is an independent private corporate group, unconnected to construction companies, suppliers of equipment or services and financial companies that now bellows to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  XEIADxeiad.comHQ: Ilkeston, United KingdomReported employees: 201-500 | Ilkeston, United Kingdom | 201-500 | Exact match | 133 contacts → |
“XEIAD specialise in the provision of qualified and experienced inspection engineers for difficult access inspection, reporting and assessment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Austunnelaustunnel.com.auHQ: Lane Cove West, AustraliaReported employees: 201-500 | Lane Cove West, Australia | 201-500 | Exact match | 124 contacts → |
“Delivering Solutions with Integrity, Reliability and Excellence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Ctlgroupctlgroup.comHQ: Mount Prospect, NY, United StatesReported employees: 51-200 | Mount Prospect, NY, United States | 51-200 | Exact match | 104 contacts → |
“CTLGroup is a globally recognized engineering consulting and testing firm specializing in structural condition assessment, forensic engineering, and construction materials testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Trakkom Engineering & Industriestrakkom.comHQ: Maltepe, TürkiyeReported employees: 51-200 | Maltepe, Türkiye | 51-200 | Exact match | 95 contacts → |
“With over 15 years of experience in mechanized tunneling and heavy machinery & equipment, Trakkom Engineering offers sustainable global solutions for the partners all over the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Hvea Engineershveapc.comHQ: Beacon, NY, United StatesReported employees: 51-200 | Beacon, NY, United States | 51-200 | Exact match | 85 contacts → |
“A recognized leader, HVEA Engineers specializes in the comprehensive design and construction inspection of transportation infrastructure projects throughout the Hudson Valley and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Rocksoil S.P.Arocksoil.comHQ: 20122 Milano, ItalyReported employees: 51-200 | 20122 Milano, Italy | 51-200 | Exact match | 77 contacts → |
“Rocksoil is design, consulting and technical assistance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Pedra Branca Escavacoespedrabrancaescavacoes.com.brHQ: Curitiba, BrazilReported employees: 51-200 | Curitiba, Brazil | 51-200 | Exact match | 71 contacts → |
“Com mais de m³ de túneis escavados em seu portfólio de obras, a Pedra Branca Escavações tornou-se referência em qualidade no setor de infraestrutura.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Torngats Technical Servicestorngats.caHQ: Quebec, QC, CanadaReported employees: 51-200 | Quebec, QC, Canada | 51-200 | Exact match | 68 contacts → |
“TORNGATS is a Canadian company, based in Quebec, mainly offering specialized services in the field of materiels inspection and integrity evaluation- Advanced non-destructive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Setec Diadèsdiades.frHQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 65 contacts → |
“DIADES est la société du groupe SETEC spécialisée dans le diagnostic des structures et a pour missions principales - l’ingénierie du diagnostic, de la maintenance, les études de…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  HB Tunnelling LTDhbtunnelling.co.ukHQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 65 contacts → |
“HB Tunnelling Ltd are a rapidly expanding, innovative company who provide tunnelling solutions include- Guided/Unguided Auger Boring Pipe jacking Box Jacking Shaft Sinking…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Gall Zeidler Consultantsgzconsultants.comHQ: Ashburn, United StatesReported employees: 51-200 | Ashburn, United States | 51-200 | Exact match | 53 contacts → |
“This year marks 25 years of engineering excellence at Gall Zeidler Consultants (GZ)-a global leader in tunnel design, engineering, geotechnics, tunnel rehabilitation, and program…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Alta Vista Solutionsoneatlas.comHQ: Oakland, NY, United StatesReported employees: 51-200 | Oakland, NY, United States | 51-200 | Exact match | 53 contacts → |
“Alta Vista Solutions is now Atlas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Technicore Undergroundtechnicore.caHQ: Newmarket, ON, CanadaReported employees: 201-500 | Newmarket, ON, Canada | 201-500 | Exact match | 52 contacts → |
“The Technicore Group of Companies, founded in 1994, is 100% owned and operated in Canada, and has grown to become one of the most vertically integrated tunnelling businesses in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Active Tunnelling LTDactivetunnelling.comHQ: Coventry, United KingdomReported employees: 11-50 | Coventry, United Kingdom | 11-50 | Exact match | 52 contacts → |
“As an industry leader since 1994, Active Tunnelling is the UK’s most experienced independent Tunnelling contractor specialising in Microtunnelling, Auger Boring, Shaft Sinking…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Saudi Tunneling Company For Contractingtunnels.saHQ: جدة, Saudi ArabiaReported employees: 201-500 | جدة, Saudi Arabia | 201-500 | Exact match | 49 contacts → |
“SAUDI TUNNELING COMPANY FOR CONTRACTING (STCC) is a subsidiary of Hassan Allam Holding, one of the leading groups in Egypt and the MENA region, with a special focus on engineering…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  KLM Engineering, INCklmengineering.comHQ: Woodbury, IL, United StatesReported employees: 11-50 | Woodbury, IL, United States | 11-50 | Exact match | 48 contacts → |
“KLM Engineering Incorporated, out of Woodbury, Minnesota, is a structural engineering and inspection firm staffed by experienced, registered professionals at all positions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 603 company matches
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Tunnel inspection services: 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
599 records in the displayed employee bands.
4 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 603 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 ↗
Tunnel inspection services by location
4 lists · largest firstEvery Tunnel inspection services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for tunnel inspection services?
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 tunnel inspection services did RevenueBase find worldwide?
The saved snapshot records 603 matching company records, 8,707 tracked contacts and 3,008 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.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 tunnel inspection services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/tunnel-inspection-services.
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 tunnel inspection services worldwide
RevenueBase records 603 matching company records for tunnel inspection services worldwide, with 8,707 tracked contacts and 3,008 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 tunnel inspection services 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 | Joseph Gallagher Limitedjosephgallagher.co.uk HQ: Stanford-le-hope, United KingdomReported employees: 501-1,000 | Stanford-le-hope, United Kingdom | 501-1,000 | Exact match | 539 contacts → |
“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.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Socotec USsocotec.us HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 498 contacts → |
“Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sites SAS Francesites.fr HQ: Rueil-malmaison, FranceReported employees: 201-500 | Rueil-malmaison, France | 201-500 | Exact match | 452 contacts → |
“A pioneer in structural health monitoring, SITES is a specialized engineering company dedicated to the performance and lifespan of infrastructures.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | Bemo Tunnellingbemo.net HQ: Innsbruck, AustriaReported employees: 501-1,000 | Innsbruck, Austria | 501-1,000 | Exact match | 196 contacts → |
“BEMO Tunnelling is specialised in the construction and refurbishment of civil engineering structures of all kinds.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | TG Tunnellingtgtunnelling.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 196 contacts → |
“TG Tunnelling is a tunnelling company based out of 2 Athenaeum Rd, London N20 9AE, United Kingdom.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Trenchless Engineering Services PVT LTDtrenchless.in HQ: Delhi, IndiaReported employees: 201-500 | Delhi, India | 201-500 | Exact match | 174 contacts → |
“TESPL is an industry-leading provider of trenchless services with India's largest fleet of 33 HDD and Microtunneling rigs of capacity ranging from 40 to 500 tons.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Systra Subterrasystra-subterra.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 134 contacts → |
“SYSTRA SUBTERRA is an independent private corporate group, unconnected to construction companies, suppliers of equipment or services and financial companies that now bellows to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | XEIADxeiad.com HQ: Ilkeston, United KingdomReported employees: 201-500 | Ilkeston, United Kingdom | 201-500 | Exact match | 133 contacts → |
“XEIAD specialise in the provision of qualified and experienced inspection engineers for difficult access inspection, reporting and assessment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Austunnelaustunnel.com.au HQ: Lane Cove West, AustraliaReported employees: 201-500 | Lane Cove West, Australia | 201-500 | Exact match | 124 contacts → |
“Delivering Solutions with Integrity, Reliability and Excellence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Ctlgroupctlgroup.com HQ: Mount Prospect, NY, United StatesReported employees: 51-200 | Mount Prospect, NY, United States | 51-200 | Exact match | 104 contacts → |
“CTLGroup is a globally recognized engineering consulting and testing firm specializing in structural condition assessment, forensic engineering, and construction materials testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Trakkom Engineering & Industriestrakkom.com HQ: Maltepe, TürkiyeReported employees: 51-200 | Maltepe, Türkiye | 51-200 | Exact match | 95 contacts → |
“With over 15 years of experience in mechanized tunneling and heavy machinery & equipment, Trakkom Engineering offers sustainable global solutions for the partners all over the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hvea Engineershveapc.com HQ: Beacon, NY, United StatesReported employees: 51-200 | Beacon, NY, United States | 51-200 | Exact match | 85 contacts → |
“A recognized leader, HVEA Engineers specializes in the comprehensive design and construction inspection of transportation infrastructure projects throughout the Hudson Valley and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Rocksoil S.P.Arocksoil.com HQ: 20122 Milano, ItalyReported employees: 51-200 | 20122 Milano, Italy | 51-200 | Exact match | 77 contacts → |
“Rocksoil is design, consulting and technical assistance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Pedra Branca Escavacoespedrabrancaescavacoes.com.br HQ: Curitiba, BrazilReported employees: 51-200 | Curitiba, Brazil | 51-200 | Exact match | 71 contacts → |
“Com mais de m³ de túneis escavados em seu portfólio de obras, a Pedra Branca Escavações tornou-se referência em qualidade no setor de infraestrutura.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Torngats Technical Servicestorngats.ca HQ: Quebec, QC, CanadaReported employees: 51-200 | Quebec, QC, Canada | 51-200 | Exact match | 68 contacts → |
“TORNGATS is a Canadian company, based in Quebec, mainly offering specialized services in the field of materiels inspection and integrity evaluation- Advanced non-destructive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Setec Diadèsdiades.fr HQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 65 contacts → |
“DIADES est la société du groupe SETEC spécialisée dans le diagnostic des structures et a pour missions principales - l’ingénierie du diagnostic, de la maintenance, les études de…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HB Tunnelling LTDhbtunnelling.co.uk HQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 65 contacts → |
“HB Tunnelling Ltd are a rapidly expanding, innovative company who provide tunnelling solutions include- Guided/Unguided Auger Boring Pipe jacking Box Jacking Shaft Sinking…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Gall Zeidler Consultantsgzconsultants.com HQ: Ashburn, United StatesReported employees: 51-200 | Ashburn, United States | 51-200 | Exact match | 53 contacts → |
“This year marks 25 years of engineering excellence at Gall Zeidler Consultants (GZ)-a global leader in tunnel design, engineering, geotechnics, tunnel rehabilitation, and program…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Alta Vista Solutionsoneatlas.com HQ: Oakland, NY, United StatesReported employees: 51-200 | Oakland, NY, United States | 51-200 | Exact match | 53 contacts → |
“Alta Vista Solutions is now Atlas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Technicore Undergroundtechnicore.ca HQ: Newmarket, ON, CanadaReported employees: 201-500 | Newmarket, ON, Canada | 201-500 | Exact match | 52 contacts → |
“The Technicore Group of Companies, founded in 1994, is 100% owned and operated in Canada, and has grown to become one of the most vertically integrated tunnelling businesses in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Active Tunnelling LTDactivetunnelling.com HQ: Coventry, United KingdomReported employees: 11-50 | Coventry, United Kingdom | 11-50 | Exact match | 52 contacts → |
“As an industry leader since 1994, Active Tunnelling is the UK’s most experienced independent Tunnelling contractor specialising in Microtunnelling, Auger Boring, Shaft Sinking…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Saudi Tunneling Company For Contractingtunnels.sa HQ: جدة, Saudi ArabiaReported employees: 201-500 | جدة, Saudi Arabia | 201-500 | Exact match | 49 contacts → |
“SAUDI TUNNELING COMPANY FOR CONTRACTING (STCC) is a subsidiary of Hassan Allam Holding, one of the leading groups in Egypt and the MENA region, with a special focus on engineering…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | KLM Engineering, INCklmengineering.com HQ: Woodbury, IL, United StatesReported employees: 11-50 | Woodbury, IL, United States | 11-50 | Exact match | 48 contacts → |
“KLM Engineering Incorporated, out of Woodbury, Minnesota, is a structural engineering and inspection firm staffed by experienced, registered professionals at all positions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 603 company matches
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Tunnel inspection services: 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
599 records in the displayed employee bands.
4 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 603 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 ↗
Tunnel inspection services by location
4 lists · largest firstEvery Tunnel inspection services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for tunnel inspection services?
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 tunnel inspection services did RevenueBase find worldwide?
The saved snapshot records 603 matching company records, 8,707 tracked contacts and 3,008 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 tunnel inspection services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/tunnel-inspection-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗