Company lists · Data refreshed September 2026

Top 25 Trenching companies worldwide

RevenueBase identified 5,406 trenching companies worldwide as of September 2026 and tracks 55,160 professional contacts across them, including 15,684 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers trenching companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026. Country and city lists for trenching companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
5,406Companies
55,160Contacts tracked
15,684Verified emails
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The 25 largest trenching companies worldwide

Ranked by team size
Top 25 of 5,406 trenching companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to trenching companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 22, 20265,001-10,0001,358 contacts →

Indirect evidence

“NPL is a nationally recognized leader in energy infrastructure construction, with 50 years of experience.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 22, 20261,001-5,000974 contacts →

Indirect evidence

“Miller Pipeline is the single-source, premier provider for all underground construction system solutions in transmission, distribution, and water/wastewater management.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceKing Of Prussia, PA, United StatesHQ checked Sep 22, 20261,001-5,000552 contacts →

Indirect evidence

“As one of the nations largest underground specialty contractors, InfraSource has over employees strategically positioned across more than 20 operating centers.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceStanford-le-hope, United KingdomHQ checked Sep 22, 2026501-1,000487 contacts →

Indirect evidence

“Joseph Gallagher is one of the UK's leading Civil Engineering & Tunnelling sub-contractors that has significantly grown over the past 45 years into an international business.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceWestmont, IL, United StatesHQ checked Sep 22, 2026501-1,000483 contacts →

Indirect evidence

“ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceSantiago, ChileHQ checked Sep 22, 20261,001-5,000480 contacts →

Indirect evidence

“Sitio web Gardilcic”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceHouston, TX, United StatesHQ checked Sep 22, 2026501-1,000475 contacts →

Indirect evidence

“National Trench Safety (NTS) specializes in the rental and sale of trench safety, traffic safety and related equipment and services.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceParagominas, BrazilHQ checked Sep 22, 2026501-1,000405 contacts →

Indirect evidence

“A Traterra é uma das maiores empresas de construção pesada e serviços especializados do norte do Brasil.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceSan Sebastián De Los Reyes, SpainHQ checked Sep 22, 2026501-1,000405 contacts →

Indirect evidence

“OSSA is the leading company in the Spanish market in underground projects in Mining, Civil Engineering tunneling (Road, Rail and Subway/Metro tunnels), Underground Hydraulic…”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceRogers, MN, United StatesHQ checked Sep 22, 20261,001-5,000345 contacts →

Indirect evidence

“Veit is one of the country’s leading specialty contractors with almost a century of experience specializing in demolition, foundations, earthwork, utilities, marine services…”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceO Fallon, MO, United StatesHQ checked Sep 22, 2026501-1,000326 contacts →

Indirect evidence

“SAK Construction is one of the largest privately held pipeline rehabilitation and tunneling contractors in the U.S.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceMaple Lake, MN, IndiaHQ checked Sep 22, 2026501-1,000322 contacts →

Indirect evidence

“MP Nexlevel provides Communications, Power, Gas and Network Providers with construction and technical services.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceHackensack, NJ, United StatesHQ checked Sep 22, 2026501-1,000321 contacts →

Indirect evidence

“J.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceHolly, MI, United StatesHQ checked Sep 22, 2026501-1,000301 contacts →

Indirect evidence

“Fessler & Bowman, Inc.”

Source: RevenueBase Database · checked Sep 22, 2026
15Indirect evidenceSpruce Grove, AB, CanadaHQ checked Sep 22, 20261,001-5,000298 contacts →

Indirect evidence

“Thompson Construction Group is a leading Alberta-based construction firm specializing in heavy civil earthworks, underground utilities, vertical construction, and industrial…”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceCanton, OH, United StatesHQ checked Sep 22, 2026501-1,000281 contacts →

Indirect evidence

“Our reputation has been built on our ability to consistently deliver quality work at competitive prices, on time and on budget.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceDorchester, MA, United StatesHQ checked Sep 22, 2026501-1,000279 contacts →

Indirect evidence

“Since 1988, Feeney Brothers Excavation, LLC has served New England’s southeastern region as the most qualified and diversified utility contractor for the gas, electric, water and…”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceSylmar, CA, United StatesHQ checked Sep 22, 2026201-500273 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceCorona, CA, United StatesHQ checked Sep 22, 20261,001-5,000266 contacts →

Indirect evidence

“Arizona Pipeline Company (APC) is a leading underground utility contractor, delivering critical infrastructure with a commitment to safety, quality, and long-term performance.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceCharleston, TN, United StatesHQ checked Sep 22, 2026501-1,000250 contacts →

Indirect evidence

“Wright Brothers Construction Co, Inc, based in Charleston, Tennessee, was founded in 1961, by two brothers, James and Robert Wright.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceAuburn Hills, MI, United StatesHQ checked Sep 22, 2026501-1,000248 contacts →

Indirect evidence

“For 36 years, Mersino has been trusted with the most complex water management challenges in the country.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceHouston, TX, United StatesHQ checked Sep 22, 20261,001-5,000231 contacts →

Indirect evidence

“The Vortex Companies deliver advanced trenchless technologies and turnkey services to cost effectively renew water, sewer and industrial infrastructure, providing a suite of…”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceLangley, BC, CanadaHQ checked Sep 22, 2026201-500228 contacts →

Indirect evidence

“Together in construction”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceSharpsburg, NC, United StatesHQ checked Sep 22, 2026501-1,000221 contacts →

Indirect evidence

“Established more than fifty years ago in the town of Rocky Mount, North Carolina, Lambert's was perfectly poised to become a leading contributor to the growth of the East Coast.”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceAntioch, CA, United StatesHQ checked Sep 22, 2026201-500217 contacts →

Indirect evidence

“Drill Tech Drilling & Shoring, Inc.(DTDS) is a full service Engineering Contractor founded in 1994 Specializing in tunneling, shafts, deep foundation, ground improvement, and…”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 5,406 trenching companies worldwide

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Trenching companies worldwide at a glance

As of Sep 22, 2026
28.4%Verified-email coverage
10.2Average contacts per company
11-50Median size (employees)
0.7%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
2,001
11-50
2,066
51-200
983
201-500
209
501-1,000
50
1,001-5,000
20
5,001-10,000
5
10001+
2

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among trenching companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for trenching companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “trenching companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names trenching companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among trenching companies, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 15,684 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Trenching companies by location

15 lists · largest first

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

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names trenching companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many trenching companies are there worldwide?

RevenueBase identified 5,406 trenching companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

NPL Construction CO, headquartered in Phoenix, tops this list with the largest team on record.

Which country has the most trenching companies?

The United States leads with 2,833 companies, followed by Canada (478) and Australia (210). Every trenching companies list by country and city is linked on this page.

Which city has the most trenching companies?

Houston leads with 36 headquartered companies, followed by Phoenix (24) and Calgary (23).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 15,684 verified decision-maker contacts tracked across these 5,406 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.