Company lists · Data refreshed September 2026

Top 25 Underground infrastructure companies worldwide

Name: Underground infrastructure companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 5,420 companies tracked

RevenueBase identified 5,420 underground infrastructure companies worldwide as of September 2026 and tracks 139,522 professional contacts across them, including 44,566 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers underground infrastructure 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 underground infrastructure 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

5,420Companies

139,522Contacts tracked

44,566Verified emails

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The 25 largest underground infrastructure companies worldwide

Ranked by team size

Top 25 of 5,420 underground infrastructure companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to underground infrastructure companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	USIC	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 22, 2026	10001+	3,767 contacts →
	Partial evidence “Performing tens of millions of locates annually, USIC is the most trusted name in underground utility damage prevention.” Source: RevenueBase Database · checked Sep 22, 2026
2	Murphy	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1,001-5,000	3,095 contacts →
	Partial evidence “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
3	SADE	Partial evidence	75685 Paris Cedex 14, FranceHQ checked Sep 22, 2026	5,001-10,000	2,527 contacts →
	Partial evidence “RESEAUX ET INFRASTRUCTURES Entreprise plus que centenaire forte de quelque 7 collaborateurs, la SADE est le spécialiste de la conception, la construction, la réhabilitation et…” Source: RevenueBase Database · checked Sep 22, 2026
4	EPCOR	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 22, 2026	1,001-5,000	2,511 contacts →
	Indirect evidence “Clean water, reliable electricity, drainage services and natural gas are at the heart of what we do.” Source: RevenueBase Database · checked Sep 22, 2026
5	SRG Global	Partial evidence	Perth, AustraliaHQ checked Sep 22, 2026	1,001-5,000	2,289 contacts →
	Partial evidence “SRG Global is a diversified infrastructure services company.” Source: RevenueBase Database · checked Sep 22, 2026
6	Pike Corporation	Indirect evidence	Mount Airy, NC, United StatesHQ checked Sep 22, 2026	10001+	2,082 contacts →
	Indirect evidence “The Pike family of companies is a leading provider of utilities solutions to over 300 investor-owned, municipal and cooperative utilities in the United States.” Source: RevenueBase Database · checked Sep 22, 2026
7	Service Stream	Indirect evidence	Docklands, AustraliaHQ checked Sep 22, 2026	1,001-5,000	1,823 contacts →
	Indirect evidence “Service Stream plays a vital role, working with our clients in keeping communities connected to essential network services across Australia.” Source: RevenueBase Database · checked Sep 22, 2026
8	ABV Rock Group	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 22, 2026	5,001-10,000	1,820 contacts →
	Indirect evidence “ABV Rock Group is a construction contractor that operates in several interlinked sectors covering buildings and civil works, and acts as a principal and specialist contractor.” Source: RevenueBase Database · checked Sep 22, 2026
9	Henkels & Mccoy, INC	Partial evidence	Blue Bell, PA, United StatesHQ checked Sep 22, 2026	5,001-10,000	1,813 contacts →
	Partial evidence “Henkels & McCoy, Inc.(H&M) is a leading utility construction firm providing critical infrastructure for the power, oil & gas pipeline, telecommunications, and gas distribution…” Source: RevenueBase Database · checked Sep 22, 2026
10	Badger Infrastructure Solutions	Indirect evidence	CanadaHQ checked Sep 22, 2026	1,001-5,000	1,441 contacts →
	Indirect evidence “Badger is the largest provider of non-destructive excavating and related services in North America.” Source: RevenueBase Database · checked Sep 22, 2026
11	NPL Construction CO	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 22, 2026	5,001-10,000	1,358 contacts →
	Partial evidence “NPL is a nationally recognized leader in energy infrastructure construction, with 50 years of experience.” Source: RevenueBase Database · checked Sep 22, 2026
12	VAN Gelder Groep	Indirect evidence	Nijkerk, NetherlandsHQ checked Sep 22, 2026	1,001-5,000	1,307 contacts →
	Indirect evidence “De infrapartner voor Nederland.” Source: RevenueBase Database · checked Sep 22, 2026
13	Green Infrastructure Partners	Indirect evidence	Markham, ON, CanadaHQ checked Sep 22, 2026	1,001-5,000	1,246 contacts →
	Indirect evidence “Our work makes the world work.” Source: RevenueBase Database · checked Sep 22, 2026
14	EJ	Partial evidence	East Jordan, MI, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,246 contacts →
	Partial evidence “EJ is the global leader in the design, manufacture, and distribution of access solutions for the world’s growing infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
15	Atco GAS	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 22, 2026	1,001-5,000	1,229 contacts →
	Indirect evidence “In the spirit of reconciliation, we acknowledge the traditional territories and homelands on which many of our ATCO operations and facilities are located.” Source: RevenueBase Database · checked Sep 22, 2026
16	Clancy	Indirect evidence	Harefield, United KingdomHQ checked Sep 22, 2026	1,001-5,000	1,218 contacts →
	Indirect evidence “The Clancy Group was founded in 1958 by Michael Clancy as M.J.” Source: RevenueBase Database · checked Sep 22, 2026
17	Mears Group, INC	Partial evidence	Englewood, CO, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,143 contacts →
	Partial evidence “Mears is an industry-leading energy infrastructure solutions provider offering engineering, construction and maintenance services to the oil and natural gas, electric transmission…” Source: RevenueBase Database · checked Sep 22, 2026
18	Utiliquest, LLC	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,115 contacts →
	Partial evidence “UtiliQuest, LLC is a leading provider of quality underground utility damage prevention for over three decades.” Source: RevenueBase Database · checked Sep 22, 2026
19	Team Fishel	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,074 contacts →
	Indirect evidence “Team Fishel is a family-owned and operated utility engineering, construction, installation, and maintenance services provider for natural gas distribution, electric power…” Source: RevenueBase Database · checked Sep 22, 2026
20	Miller Pipeline	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 22, 2026	1,001-5,000	974 contacts →
	Partial 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
21	M Group	Partial evidence	Stevenage, United KingdomHQ checked Sep 22, 2026	10001+	851 contacts →
	Partial evidence “M Group \| Essential Infrastructure Services for Life It’s an exceptional time to be part of M Group.” Source: RevenueBase Database · checked Sep 22, 2026
22	Barhale LTD	Indirect evidence	Walsall, United KingdomHQ checked Sep 22, 2026	1,001-5,000	803 contacts →
	Indirect evidence “Barhale was formed in 1980 as a specialist tunnelling contractor and grew initially through the successful delivery of projects in the water sector, developing mechanical and…” Source: RevenueBase Database · checked Sep 22, 2026
23	ITG Communications, LLC	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 22, 2026	1,001-5,000	765 contacts →
	Partial evidence “Founded in 2013, ITG is a national provider of end-to-end digital infrastructure services delivered through a turnkey model.” Source: RevenueBase Database · checked Sep 22, 2026
24	GPRS	Indirect evidence	Maumee, OH, United StatesHQ checked Sep 22, 2026	501-1,000	736 contacts →
	Indirect evidence “Creating possibility for our team members and clients by Intelligently Visualizing the Built World is who we are.” Source: RevenueBase Database · checked Sep 22, 2026
25	Circet Italia S.P.A	Indirect evidence	San Giovanni Teatino, ItalyHQ checked Sep 22, 2026	1,001-5,000	668 contacts →
	Indirect evidence “Circet Italia opera da oltre 30 anni nel mercato di sistemi e reti di telecomunicazione, energia e trasporti con servizi di progettazione, installazione e manutenzione di grandi…” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: underground infrastructure companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names underground infrastructure companies.
Partial evidence: Its own public description names part of underground infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underground infrastructure companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 5,420 underground infrastructure companies worldwide

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Underground infrastructure companies worldwide at a glance

As of Sep 22, 2026

31.9%Verified-email coverage

25.7Average contacts per company

11-50Median size (employees)

0.6%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

1,532

11-50

1,974

51-200

1,235

201-500

348

501-1,000

144

1,001-5,000

114

5,001-10,000

10001+

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 underground infrastructure 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 underground infrastructure companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “underground infrastructure 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 underground infrastructure 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 underground infrastructure 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, 44,566 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.

Underground infrastructure companies by location

19 lists · largest first

Every Underground infrastructure 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 underground infrastructure 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 underground infrastructure companies are there worldwide?

RevenueBase identified 5,420 underground infrastructure 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?

USIC, headquartered in Indianapolis, tops this list with the largest team on record.

Which country has the most underground infrastructure companies?

The United States leads with 1,969 companies, followed by the United Kingdom (405) and Germany (324). Every underground infrastructure companies list by country and city is linked on this page.

Which city has the most underground infrastructure companies?

Houston leads with 35 headquartered companies, followed by London (26) and Phoenix (24).

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 44,566 verified decision-maker contacts tracked across these 5,420 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.