Company lists · Data refreshed September 2026

Top 25 Oil and gas pipeline contractors based in the United States

Name: Oil and gas pipeline contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,221 companies tracked

RevenueBase identified 1,221 oil and gas pipeline contractors headquartered in the United States as of September 2026 and tracks 140,496 professional contacts across them, including 45,745 with verified work emails. Houston is the largest hub.

This list covers oil and gas pipeline contractors headquartered in the United States, 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 17, 2026.

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 17, 2026 86% judged on-target in blind review

1,221Companies

140,496Contacts tracked

45,745Verified emails

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The 25 largest oil and gas pipeline contractors based in the United States

Ranked by team size

Top 25 of 1,221 oil and gas pipeline contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas pipeline contractors: 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	Mcdermott International, LTD	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	20,135 contacts →
	Indirect evidence “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
2	Kiewit	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 17, 2026	10001+	19,465 contacts →
	Indirect evidence “At Kiewit, the projects we deliver make a difference, and we offer opportunities for you to make one, too.” Source: RevenueBase Database · checked Sep 17, 2026
3	Kinder Morgan, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	8,314 contacts →
	Indirect evidence “Kinder Morgan, Inc.(NYSE: KMI) is one of the largest energy infrastructure companies in North America.” Source: RevenueBase Database · checked Sep 17, 2026
4	Zachry Group	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 17, 2026	10001+	6,824 contacts →
	Indirect evidence “Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…” Source: RevenueBase Database · checked Sep 17, 2026
5	ONEOK	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,443 contacts →
	Indirect evidence “At ONEOK (NYSE: OKE), we deliver energy products and services vital to an advancing world.” Source: RevenueBase Database · checked Sep 17, 2026
6	S&b	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	3,510 contacts →
	Indirect evidence “S&B is an engineer and constructor that designs and builds some of the largest and most complex industrial facilities in the world.” Source: RevenueBase Database · checked Sep 17, 2026
7	Team, INC	Indirect evidence	Sugar Land, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	3,460 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
8	Entrust Solutions Group	Strong evidence	Lisle, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,966 contacts →
	Strong evidence “ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Source: RevenueBase Database · checked Sep 17, 2026
9	Kleinfelder	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,344 contacts →
	Indirect evidence “At Kleinfelder, we have been connecting great people to the best work since 1961.” Source: RevenueBase Database · checked Sep 17, 2026
10	Michels Corporation	Indirect evidence	Brownsville, WI, United StatesHQ checked Sep 17, 2026	10001+	2,339 contacts →
	Indirect evidence “Established in 1959 in Brownsville, WI, Michels is an international leader in energy and infrastructure construction.” Source: RevenueBase Database · checked Sep 17, 2026
11	Henkels & Mccoy, INC	Strong evidence	Blue Bell, PA, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,813 contacts →
	Strong 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 17, 2026
12	Quanta Services, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	1,783 contacts →
	Partial evidence “Quanta Services (NYSE: PWR) is the leading specialty contractor with the largest and highly trained skilled workforce in North America, providing fully integrated solutions for…” Source: RevenueBase Database · checked Sep 17, 2026
13	T.D. Williamson	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,618 contacts →
	Indirect evidence “T.D.” Source: RevenueBase Database · checked Sep 17, 2026
14	Buckeye Partners	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,535 contacts →
	Indirect evidence “Buckeye Partners is a forward-thinking energy company.” Source: RevenueBase Database · checked Sep 17, 2026
15	Audubon Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,488 contacts →
	Indirect evidence “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Source: RevenueBase Database · checked Sep 17, 2026
16	Webber, A Ferrovial Company	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,449 contacts →
	Indirect evidence “Founded in 1963, Webber is a leading construction company that specializes in heavy civil, waterworks, energy and infrastructure management and is dedicated to safely providing…” Source: RevenueBase Database · checked Sep 17, 2026
17	Bilfinger North America	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 17, 2026	10001+	1,400 contacts →
	Indirect evidence “As a leading construction and maintenance provider, Bilfinger aims to enhance the efficiency of assets and lower operational costs.” Source: RevenueBase Database · checked Sep 17, 2026
18	NPL Construction CO	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,358 contacts →
	Indirect evidence “NPL is a nationally recognized leader in energy infrastructure construction, with 50 years of experience.” Source: RevenueBase Database · checked Sep 17, 2026
19	Mears Group, INC	Strong evidence	Englewood, CO, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,143 contacts →
	Strong 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 17, 2026
20	Gulf Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,046 contacts →
	Indirect evidence “At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
21	DNOW	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	976 contacts →
	Indirect evidence “DNOW is a premier energy and industrial solutions provider with a legacy of over 160 years as a leading distributor of pipe, valves, fittings (PVF), pumps and fabricated equipment.” Source: RevenueBase Database · checked Sep 17, 2026
22	Aldridge Electric	Partial evidence	Libertyville, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	967 contacts →
	Partial evidence “With a legacy of providing transformative construction solutions, Aldridge is committed to being your contractor of choice to power America’s critical infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
23	Boardwalk Pipelines	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	929 contacts →
	Partial evidence “Boardwalk Pipelines powers possibility with innovative energy infrastructure that helps markets grow and communities thrive.” Source: RevenueBase Database · checked Sep 17, 2026
24	Matrix Service Company	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 17, 2026	1,001-5,000	785 contacts →
	Indirect evidence “Matrix Service Company (Nasdaq: MTRX) is a leading specialty engineering and construction company whose commitment to safety, quality, and integrity has earned its subsidiaries a…” Source: RevenueBase Database · checked Sep 17, 2026
25	Percheron, LLC	Indirect evidence	Katy, TX, United StatesHQ checked Sep 17, 2026	501-1,000	776 contacts →
	Indirect evidence “Percheron streamlines energy infrastructure projects through a comprehensive EPCM (Engineering, Procurement, Construction Management) approach.” Source: RevenueBase Database · checked Sep 17, 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: oil and gas pipeline contractors. 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 oil and gas pipeline contractors.
Partial evidence: Its own public description names part of oil and gas pipeline contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas pipeline contractors. 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 1,221 oil and gas pipeline contractors based in the United States

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Oil and gas pipeline contractors based in the United States at a glance

As of Sep 17, 2026

32.6%Verified-email coverage

115.1Average contacts per company

51-200Median size (employees)

11.1%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

231

11-50

375

51-200

349

201-500

126

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,221 companies.

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 oil and gas pipeline contractors, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “oil and gas pipeline contractors”. 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 oil and gas pipeline contractors), 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 oil and gas pipeline contractors, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 45,745 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 17, 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.

Oil and gas pipeline contractors by metro

Oil and gas pipeline contractors in Houston136
Oil and gas pipeline contractors in Midland37

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 oil and gas pipeline contractors, 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 oil and gas pipeline contractors are there based in the United States?

RevenueBase identified 1,221 oil and gas pipeline contractors headquartered in the United States 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?

Mcdermott International, LTD, headquartered in Houston, tops this list with the largest team on record.

Which city has the most oil and gas pipeline contractors?

Houston leads with 136 headquartered companies, followed by Midland (37) and Tulsa (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 45,745 verified decision-maker contacts tracked across these 1,221 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 17, 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.