Company lists · Data refreshed September 2026
Top 25 Subway tunnel contractors based in the United States
RevenueBase identified 65 company matches for subway tunnel contractors associated with the United States as of September 2026 and tracks 2,696 professional contacts across them, including 1,332 with verified work emails. Houston is the largest hub.
This list covers company matches for subway tunnel contractors associated with the United States, 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 September 18, 2026.
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 subway tunnel contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 326 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 · Sep 18, 2026 · View company records in RevenueBase | |||||
| 2 | 311 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 · Sep 18, 2026 · View company records in RevenueBase | |||||
| 3 | 290 contacts → | ||||
Exact match “Halmar International, where for more than 60 years the future of transportation infrastructure is built.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 4 | 273 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 5 | 264 contacts → | ||||
Exact match “With 70 years of innovation and experience, Robbins is the world’s foremost developer and manufacturer of advanced, underground construction machinery.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 6 | 217 contacts → | ||||
Exact match “Drill Tech Drilling & Shoring, Inc.(DTDS) is a full service Engineering Contractor founded in 1994 Specializing in tunneling, shafts, deep foundation, ground improvement, and…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 7 | 82 contacts → | ||||
Exact match “Creating Space Underground®” has been our mission and our passion for 25 years.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 8 | 81 contacts → | ||||
Exact match “J.W.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 9 | 77 contacts → | ||||
Exact match “Jay Dee Contractors (Jay Dee) is a family-owned company and a leader in heavy underground construction serving clients across the United States and Canada since 1965.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 10 | 70 contacts → | ||||
Exact match “Established in 1982, CES has installed thousands of miles of underground fiber optic, conventional power and communication cable.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 11 | 55 contacts → | ||||
Exact match “With over 60 years of pioneering excellence in underground construction, Ric-Man has established itself as a leader in the industry, renowned for our innovative approaches and…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 12 | 53 contacts → | ||||
Exact match “LJB Underground Services (Aldea) provides expert technical resources for design and construction management, of heavy civil underground projects and risk management of all major…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 13 | 50 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 · Sep 18, 2026 · View company records in RevenueBase | |||||
| 14 | 45 contacts → | ||||
Exact match “Bradshaw Construction Corporation is a leading contractor in the tunneling industry.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 15 | 42 contacts → | ||||
Exact match “Established in 1976, we at Aaron Enterprises, Inc.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 16 | 40 contacts → | ||||
Exact match “Kilduff Underground Engineering (KUE) was established in 2014 by Todd Kilduff, PE, to support contractors, A/E firms and owners.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 17 | 13 contacts → | ||||
Exact match “AFFHOLDER is a leader in large-diameter tunneling, shaft excavation, shotcrete, and sliplining services.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 18 | 13 contacts → | ||||
Exact match “Building tunnels is grueling work and so is finding a company with the know-how and dedication to get it done safely, on time, and within budget.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “Moffat Pipe, Inc.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “We construct “trenchless” pathways for underground utilities such as water, sewer, electrical and drainage as well as pedestrian tunnels using specialized boring and tunneling…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 21 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 22 | 10 contacts → | ||||
Exact match “Tabrizi Construction provides specialized heavy civil, underground, and tunnel support services for complex infrastructure projects.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 23 | 9 contacts → | ||||
Exact match “Lithos Engineering was formed with the vision of serving communities by providing our clients and their projects with recognizable value through prudent site evaluations…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 24 | 9 contacts → | ||||
Exact match “TUNNEL ELECTRIC INC is a company based out of PO BOX 1659, SHINGLE SPRINGS, California, United States.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 25 | 8 contacts → | ||||
Exact match “Iowa Trenchless is a full service boring and tunneling company.” Recorded in the RevenueBase company graph · Sep 18, 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 “subway tunnel 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 65 subway tunnel contractors based in the United States
See the full list, filter by size, metro and specialty, and access 1,332 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Subway tunnel contractors based in the United States at a glance
As of Sep 18, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 65 companies.
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.
- What qualifies
- Company records associated with the United States whose business descriptions match “subway tunnel 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 1,332 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 September 18, 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.
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 “subway tunnel contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many subway tunnel contractors are there based in the United States?
RevenueBase identified 65 company matches for subway tunnel contractors associated with the United States as of September 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?
SAK Construction, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most subway tunnel contractors?
Houston leads with 3 company records, followed by Caruthers (2) and Dallas (2).
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 1,332 professional contacts with verified work emails tracked across these 65 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 September 18, 2026.
Ready to reach these companies? Verified emails and direct dials for all 65 subway tunnel contractors based in the United States. Start with a free account, no credit card.
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Subway tunnel contractors by geography
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Subway tunnel contractors based in Germany
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Company intelligence · public preview
Top 25 subway tunnel contractors based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 65 matching company records for subway tunnel contractors based in the United States, with 2,696 tracked contacts and 1,332 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: September 18, 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 subway tunnel contractors based in the United States
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 | SAK Construction, LLCsakcon.com HQ: O Fallon, MO, United StatesReported employees: 501-1,000 | O Fallon, MO, United States | 501-1,000 | Exact match | 326 contacts → |
“SAK Construction is one of the largest privately held pipeline rehabilitation and tunneling contractors in the U.S.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Delve Undergrounddelveunderground.comHQ: Seattle, WA, United StatesReported employees: 201-500 | Seattle, WA, United States | 201-500 | Exact match | 311 contacts → |
“Delve Underground is a leader in heavy civil engineering, serving the transportation, water, wastewater, and energy industries.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Halmar Internationalhalmarinternational.comHQ: Nanuet, NY, United StatesReported employees: 201-500 | Nanuet, NY, United States | 201-500 | Exact match | 290 contacts → |
“Halmar International, where for more than 60 years the future of transportation infrastructure is built.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Frontier-Kemper Constructors, INCfrontierkemper.com HQ: Sylmar, CA, United StatesReported employees: 201-500 | Sylmar, CA, United States | 201-500 | Exact match | 273 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 5 | Robbinsrobbinstbm.com HQ: Solon, OH, United StatesReported employees: 501-1,000 | Solon, OH, United States | 501-1,000 | Exact match | 264 contacts → |
“With 70 years of innovation and experience, Robbins is the world’s foremost developer and manufacturer of advanced, underground construction machinery.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Antioch, CA, United StatesReported employees: 201-500 | Antioch, CA, United States | 201-500 | Exact match | 217 contacts → |
“Drill Tech Drilling & Shoring, Inc.(DTDS) is a full service Engineering Contractor founded in 1994 Specializing in tunneling, shafts, deep foundation, ground improvement, and…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Brierley Associates Corporationbrierleyassociates.comHQ: Englewood, CO, United StatesReported employees: 51-200 | Englewood, CO, United States | 51-200 | Exact match | 82 contacts → |
“Creating Space Underground®” has been our mission and our passion for 25 years.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  JW Fowlerjwfowler.comHQ: Dallas, OR, United StatesReported employees: 201-500 | Dallas, OR, United States | 201-500 | Exact match | 81 contacts → |
“J.W.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | JAY DEE Contractors INCjaydee.us HQ: Livonia, MI, United StatesReported employees: 201-500 | Livonia, MI, United States | 201-500 | Exact match | 77 contacts → |
“Jay Dee Contractors (Jay Dee) is a family-owned company and a leader in heavy underground construction serving clients across the United States and Canada since 1965.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Corby Energy Services INCcorbyenergy.com HQ: Belleville, MI, United StatesReported employees: 201-500 | Belleville, MI, United States | 201-500 | Exact match | 70 contacts → |
“Established in 1982, CES has installed thousands of miles of underground fiber optic, conventional power and communication cable.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ric-Man Construction, INCric-man.com HQ: Sterling Heights, MI, United StatesReported employees: 51-200 | Sterling Heights, MI, United States | 51-200 | Exact match | 55 contacts → |
“With over 60 years of pioneering excellence in underground construction, Ric-Man has established itself as a leader in the industry, renowned for our innovative approaches and…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  LJB Underground Services Aldea Services INCaldeaservices.comHQ: Frederick, MD, United StatesReported employees: 201-500 | Frederick, MD, United States | 201-500 | Exact match | 53 contacts → |
“LJB Underground Services (Aldea) provides expert technical resources for design and construction management, of heavy civil underground projects and risk management of all major…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Gall Zeidler Consultantsgzconsultants.com HQ: Ashburn, VA, United StatesReported employees: 51-200 | Ashburn, VA, United States | 51-200 | Exact match | 50 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 · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Bradshaw Construction Corporationbradshawcc.com HQ: Eldersburg, MD, United StatesReported employees: 51-200 | Eldersburg, MD, United States | 51-200 | Exact match | 45 contacts → |
“Bradshaw Construction Corporation is a leading contractor in the tunneling industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Aaron Enterprises, INCaaronenterprises.comHQ: York, PA, United StatesReported employees: 51-200 | York, PA, United States | 51-200 | Exact match | 42 contacts → |
“Established in 1976, we at Aaron Enterprises, Inc.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Kilduff Underground Engineering, INCkilduffunderground.comHQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 40 contacts → |
“Kilduff Underground Engineering (KUE) was established in 2014 by Todd Kilduff, PE, to support contractors, A/E firms and owners.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Affholder, LLCaffholder.comHQ: O'fallon, MO, United StatesReported employees: 51-200 | O'fallon, MO, United States | 51-200 | Exact match | 13 contacts → |
“AFFHOLDER is a leader in large-diameter tunneling, shaft excavation, shotcrete, and sliplining services.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Pacific Boring, INCpacificboring.com HQ: Caruthers, CA, United StatesReported employees: 11-50 | Caruthers, CA, United States | 11-50 | Exact match | 13 contacts → |
“Building tunnels is grueling work and so is finding a company with the know-how and dedication to get it done safely, on time, and within budget.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Moffat Pipemoffatpipe.com HQ: Wake Forest, NC, United StatesReported employees: 51-200 | Wake Forest, NC, United States | 51-200 | Exact match | 10 contacts → |
“Moffat Pipe, Inc.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | The Driller, LLCthedrillerllc.com HQ: Pleasant Hill, IA, United StatesReported employees: 11-50 | Pleasant Hill, IA, United States | 11-50 | Exact match | 10 contacts → |
“We construct “trenchless” pathways for underground utilities such as water, sewer, electrical and drainage as well as pedestrian tunnels using specialized boring and tunneling…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Herrenknecht Tunneling Systherrenknecht.com HQ: Tacoma, WA, United StatesReported employees: 11-50 | Tacoma, WA, United States | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Tabrizi Constructiontabriziconstruct.com HQ: Manhattan Beach, CA, United StatesReported employees: 11-50 | Manhattan Beach, CA, United States | 11-50 | Exact match | 10 contacts → |
“Tabrizi Construction provides specialized heavy civil, underground, and tunnel support services for complex infrastructure projects.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Lithos Engineeringlithoseng.comHQ: Fort Collins, CO, United StatesReported employees: 11-50 | Fort Collins, CO, United States | 11-50 | Exact match | 9 contacts → |
“Lithos Engineering was formed with the vision of serving communities by providing our clients and their projects with recognizable value through prudent site evaluations…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Tunnel Electric INCtunnelelectric.com HQ: Shingle Springs, CA, United StatesReported employees: 1-10 | Shingle Springs, CA, United States | 1-10 | Exact match | 9 contacts → |
“TUNNEL ELECTRIC INC is a company based out of PO BOX 1659, SHINGLE SPRINGS, California, United States.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Iowa Trenchlessiowatrenchless.com HQ: Panora, IA, United StatesReported employees: 11-50 | Panora, IA, United States | 11-50 | Exact match | 8 contacts → |
“Iowa Trenchless is a full service boring and tunneling company.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 65 company matches
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Subway tunnel contractors: dataset insights
September 18, 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
65 records in the displayed employee bands.
0 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 worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 65 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: September 18, 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 ↗
Questions about this company list
What does Exact match mean for subway tunnel 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 subway tunnel contractors did RevenueBase find based in the United States?
The saved snapshot records 65 matching company records, 2,696 tracked contacts and 1,332 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: September 18, 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
Subway tunnel contractors by geography
Cite this list
RevenueBase Data Team. Top 25 subway tunnel contractors based in the United States. Snapshot: September 18, 2026. https://revenuebase.ai/companies/subway-tunnel-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Subway tunnel contractors based in Germany
- Subway tunnel contractors based in Italy
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 subway tunnel contractors based in the United States
RevenueBase records 65 matching company records for subway tunnel contractors based in the United States, with 2,696 tracked contacts and 1,332 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: September 18, 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 subway tunnel contractors based in the United States
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 | SAK Construction, LLCsakcon.com HQ: O Fallon, MO, United StatesReported employees: 501-1,000 | O Fallon, MO, United States | 501-1,000 | Exact match | 326 contacts → |
“SAK Construction is one of the largest privately held pipeline rehabilitation and tunneling contractors in the U.S.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Delve Undergrounddelveunderground.com HQ: Seattle, WA, United StatesReported employees: 201-500 | Seattle, WA, United States | 201-500 | Exact match | 311 contacts → |
“Delve Underground is a leader in heavy civil engineering, serving the transportation, water, wastewater, and energy industries.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Halmar Internationalhalmarinternational.com HQ: Nanuet, NY, United StatesReported employees: 201-500 | Nanuet, NY, United States | 201-500 | Exact match | 290 contacts → |
“Halmar International, where for more than 60 years the future of transportation infrastructure is built.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Frontier-Kemper Constructors, INCfrontierkemper.com HQ: Sylmar, CA, United StatesReported employees: 201-500 | Sylmar, CA, United States | 201-500 | Exact match | 273 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 5 | Robbinsrobbinstbm.com HQ: Solon, OH, United StatesReported employees: 501-1,000 | Solon, OH, United States | 501-1,000 | Exact match | 264 contacts → |
“With 70 years of innovation and experience, Robbins is the world’s foremost developer and manufacturer of advanced, underground construction machinery.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Antioch, CA, United StatesReported employees: 201-500 | Antioch, CA, United States | 201-500 | Exact match | 217 contacts → |
“Drill Tech Drilling & Shoring, Inc.(DTDS) is a full service Engineering Contractor founded in 1994 Specializing in tunneling, shafts, deep foundation, ground improvement, and…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Brierley Associates Corporationbrierleyassociates.com HQ: Englewood, CO, United StatesReported employees: 51-200 | Englewood, CO, United States | 51-200 | Exact match | 82 contacts → |
“Creating Space Underground®” has been our mission and our passion for 25 years.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | JW Fowlerjwfowler.com HQ: Dallas, OR, United StatesReported employees: 201-500 | Dallas, OR, United States | 201-500 | Exact match | 81 contacts → |
“J.W.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | JAY DEE Contractors INCjaydee.us HQ: Livonia, MI, United StatesReported employees: 201-500 | Livonia, MI, United States | 201-500 | Exact match | 77 contacts → |
“Jay Dee Contractors (Jay Dee) is a family-owned company and a leader in heavy underground construction serving clients across the United States and Canada since 1965.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Corby Energy Services INCcorbyenergy.com HQ: Belleville, MI, United StatesReported employees: 201-500 | Belleville, MI, United States | 201-500 | Exact match | 70 contacts → |
“Established in 1982, CES has installed thousands of miles of underground fiber optic, conventional power and communication cable.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ric-Man Construction, INCric-man.com HQ: Sterling Heights, MI, United StatesReported employees: 51-200 | Sterling Heights, MI, United States | 51-200 | Exact match | 55 contacts → |
“With over 60 years of pioneering excellence in underground construction, Ric-Man has established itself as a leader in the industry, renowned for our innovative approaches and…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | LJB Underground Services Aldea Services INCaldeaservices.com HQ: Frederick, MD, United StatesReported employees: 201-500 | Frederick, MD, United States | 201-500 | Exact match | 53 contacts → |
“LJB Underground Services (Aldea) provides expert technical resources for design and construction management, of heavy civil underground projects and risk management of all major…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Gall Zeidler Consultantsgzconsultants.com HQ: Ashburn, VA, United StatesReported employees: 51-200 | Ashburn, VA, United States | 51-200 | Exact match | 50 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 · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Bradshaw Construction Corporationbradshawcc.com HQ: Eldersburg, MD, United StatesReported employees: 51-200 | Eldersburg, MD, United States | 51-200 | Exact match | 45 contacts → |
“Bradshaw Construction Corporation is a leading contractor in the tunneling industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Aaron Enterprises, INCaaronenterprises.com HQ: York, PA, United StatesReported employees: 51-200 | York, PA, United States | 51-200 | Exact match | 42 contacts → |
“Established in 1976, we at Aaron Enterprises, Inc.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Kilduff Underground Engineering, INCkilduffunderground.com HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 40 contacts → |
“Kilduff Underground Engineering (KUE) was established in 2014 by Todd Kilduff, PE, to support contractors, A/E firms and owners.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Affholder, LLCaffholder.com HQ: O'fallon, MO, United StatesReported employees: 51-200 | O'fallon, MO, United States | 51-200 | Exact match | 13 contacts → |
“AFFHOLDER is a leader in large-diameter tunneling, shaft excavation, shotcrete, and sliplining services.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Pacific Boring, INCpacificboring.com HQ: Caruthers, CA, United StatesReported employees: 11-50 | Caruthers, CA, United States | 11-50 | Exact match | 13 contacts → |
“Building tunnels is grueling work and so is finding a company with the know-how and dedication to get it done safely, on time, and within budget.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Moffat Pipemoffatpipe.com HQ: Wake Forest, NC, United StatesReported employees: 51-200 | Wake Forest, NC, United States | 51-200 | Exact match | 10 contacts → |
“Moffat Pipe, Inc.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | The Driller, LLCthedrillerllc.com HQ: Pleasant Hill, IA, United StatesReported employees: 11-50 | Pleasant Hill, IA, United States | 11-50 | Exact match | 10 contacts → |
“We construct “trenchless” pathways for underground utilities such as water, sewer, electrical and drainage as well as pedestrian tunnels using specialized boring and tunneling…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Herrenknecht Tunneling Systherrenknecht.com HQ: Tacoma, WA, United StatesReported employees: 11-50 | Tacoma, WA, United States | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Tabrizi Constructiontabriziconstruct.com HQ: Manhattan Beach, CA, United StatesReported employees: 11-50 | Manhattan Beach, CA, United States | 11-50 | Exact match | 10 contacts → |
“Tabrizi Construction provides specialized heavy civil, underground, and tunnel support services for complex infrastructure projects.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Lithos Engineeringlithoseng.com HQ: Fort Collins, CO, United StatesReported employees: 11-50 | Fort Collins, CO, United States | 11-50 | Exact match | 9 contacts → |
“Lithos Engineering was formed with the vision of serving communities by providing our clients and their projects with recognizable value through prudent site evaluations…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Tunnel Electric INCtunnelelectric.com HQ: Shingle Springs, CA, United StatesReported employees: 1-10 | Shingle Springs, CA, United States | 1-10 | Exact match | 9 contacts → |
“TUNNEL ELECTRIC INC is a company based out of PO BOX 1659, SHINGLE SPRINGS, California, United States.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Iowa Trenchlessiowatrenchless.com HQ: Panora, IA, United StatesReported employees: 11-50 | Panora, IA, United States | 11-50 | Exact match | 8 contacts → |
“Iowa Trenchless is a full service boring and tunneling company.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 65 company matches
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Subway tunnel contractors: dataset insights
September 18, 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
65 records in the displayed employee bands.
0 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 worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 65 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: September 18, 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 ↗
Questions about this company list
What does Exact match mean for subway tunnel 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 subway tunnel contractors did RevenueBase find based in the United States?
The saved snapshot records 65 matching company records, 2,696 tracked contacts and 1,332 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: September 18, 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
Subway tunnel contractors by geography
Cite this list
RevenueBase Data Team. Top 25 subway tunnel contractors based in the United States. Snapshot: September 18, 2026. https://revenuebase.ai/companies/subway-tunnel-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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