Company lists · Data refreshed September 2026

Top 25 Critical facilities contractors based in the United States

Name: Critical facilities 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 16, 2026 4,014 companies tracked

RevenueBase identified 4,014 critical facilities contractors headquartered in the United States as of September 2026 and tracks 452,056 professional contacts across them, including 168,819 with verified work emails. Houston is the largest hub.

This list covers critical facilities 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 16, 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 16, 2026 86% judged on-target in blind review

4,014Companies

452,056Contacts tracked

168,819Verified emails

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The 25 largest critical facilities contractors based in the United States

Ranked by team size

Top 25 of 4,014 critical facilities contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to critical facilities 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	Fluor Corporation	Indirect evidence	Irving, TX, United StatesHQ checked Sep 16, 2026	10001+	33,084 contacts →
	Indirect evidence “Fluor Corporation is a global engineering, procurement and construction company.” Source: RevenueBase Database · checked Sep 16, 2026
2	Bechtel Corporation	Indirect evidence	Reston, VA, United StatesHQ checked Sep 16, 2026	10001+	25,068 contacts →
	Indirect evidence “Bechtel is a trusted engineering, construction and project management partner to industry and government.” Source: RevenueBase Database · checked Sep 16, 2026
3	Kiewit	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 16, 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 16, 2026
4	Burns & Mcdonnell	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 16, 2026	10001+	12,497 contacts →
	Indirect evidence “At Burns & McDonnell, our engineers, construction professionals, architects, planners, technologists and scientists do more than plan, design and construct.” Source: RevenueBase Database · checked Sep 16, 2026
5	Black & Veatch	Indirect evidence	Overland Park, KS, United StatesHQ checked Sep 16, 2026	10001+	10,851 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
6	URS Corporation, An Aecom Company	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	10001+	7,706 contacts →
	Indirect evidence “URS Corporation operations are now affiliated with AECOM.” Source: RevenueBase Database · checked Sep 16, 2026
7	CDM Smith	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	5,001-10,000	7,527 contacts →
	Indirect evidence “CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
8	HNTB	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 16, 2026	5,001-10,000	7,469 contacts →
	Indirect evidence “For over a century, HNTB has shaped the built environment with distinctive expertise across a full spectrum of infrastructure solutions.” Source: RevenueBase Database · checked Sep 16, 2026
9	Zachry Group	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 16, 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 16, 2026
10	Mccarthy Building Companies, INC	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 16, 2026	5,001-10,000	5,367 contacts →
	Indirect evidence “With 160 years spent collaborating with partners to solve complex building challenges on behalf of its clients, McCarthy Building Companies, Inc.(McCarthy) is committed to…” Source: RevenueBase Database · checked Sep 16, 2026
11	Granite Construction	Indirect evidence	Watsonville, CA, United StatesHQ checked Sep 16, 2026	5,001-10,000	4,567 contacts →
	Indirect evidence “From infrastructure that facilitates the movement of goods and people to projects that improve the way we live, work, and play, high-value partnerships power our projects and fuel…” Source: RevenueBase Database · checked Sep 16, 2026
12	Michael Baker International	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 16, 2026	5,001-10,000	4,362 contacts →
	Partial evidence “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Source: RevenueBase Database · checked Sep 16, 2026
13	Clark Construction Group	Indirect evidence	United StatesHQ checked Sep 16, 2026	1,001-5,000	4,223 contacts →
	Indirect evidence “Clark Construction Group is one of the largest building and infrastructure companies in the United States.” Source: RevenueBase Database · checked Sep 16, 2026
14	The Walsh Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 16, 2026	5,001-10,000	4,161 contacts →
	Indirect evidence “The Walsh Group is a 127-year-old company providing design, build, finance, operation and activation services.” Source: RevenueBase Database · checked Sep 16, 2026
15	Sargent & Lundy	Indirect evidence	Chicago, WY, United StatesHQ checked Sep 16, 2026	1,001-5,000	4,156 contacts →
	Indirect evidence “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Source: RevenueBase Database · checked Sep 16, 2026
16	Hensel Phelps	Indirect evidence	Greeley, CO, United StatesHQ checked Sep 16, 2026	5,001-10,000	4,094 contacts →
	Indirect evidence “As an employee-owned company, Hensel Phelps culture is based on dedication and commitment to delivering EXCELLENCE for our clients and employees.” Source: RevenueBase Database · checked Sep 16, 2026
17	Primoris Services Corporation	Partial evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	10001+	4,089 contacts →
	Partial evidence “Primoris Services Corporation (NYSE: PRIM) is a leading provider of critical infrastructure services to the utility, energy, and renewables markets throughout the United States…” Source: RevenueBase Database · checked Sep 16, 2026
18	Gilbane Building	Partial evidence	Providence, RI, United StatesHQ checked Sep 16, 2026	1,001-5,000	4,084 contacts →
	Partial evidence “Gilbane Building Company provides a full slate of construction and facilities-related services-from preconstruction services planning and integrated consulting capabilities to…” Source: RevenueBase Database · checked Sep 16, 2026
19	Balfour Beatty US	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	3,578 contacts →
	Indirect evidence “Balfour Beatty US is an industry-leading provider of general contracting, at-risk construction management and design-build services for public and private sector clients across…” Source: RevenueBase Database · checked Sep 16, 2026
20	STV	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	1,001-5,000	3,556 contacts →
	Indirect evidence “STV offers professional services for the infrastructure that powers our lives.” Source: RevenueBase Database · checked Sep 16, 2026
21	S&b	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	5,001-10,000	3,510 contacts →
	Partial 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 16, 2026
22	DAY & Zimmermann	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 16, 2026	10001+	3,483 contacts →
	Indirect evidence “When you’ve been around for more than a century, you know a thing or two!” Source: RevenueBase Database · checked Sep 16, 2026
23	Mastec	Indirect evidence	Coral Gables, FL, United StatesHQ checked Sep 16, 2026	10001+	3,163 contacts →
	Indirect evidence “MasTec companies have been involved in some of the largest and most complex infrastructure construction projects across the country.” Source: RevenueBase Database · checked Sep 16, 2026
24	BL Harbert International LLC	Indirect evidence	Birmingham, AL, United StatesHQ checked Sep 16, 2026	5,001-10,000	2,818 contacts →
	Indirect evidence “BL Harbert International, LLC began construction operations in under the leadership of Billy Harbert, Jr, carrying on a family tradition in the construction industry dating back…” Source: RevenueBase Database · checked Sep 16, 2026
25	Suffolk Construction	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,801 contacts →
	Indirect evidence “Suffolk is a national enterprise that builds, innovates and invests.” Source: RevenueBase Database · checked Sep 16, 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: critical facilities 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 critical facilities contractors.
Partial evidence: Its own public description names part of critical facilities contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name critical facilities 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 4,014 critical facilities contractors based in the United States

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Critical facilities contractors based in the United States at a glance

As of Sep 16, 2026

37.3%Verified-email coverage

112.6Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

963

11-50

1,480

51-200

889

201-500

318

501-1,000

154

1,001-5,000

165

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 4,014 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 critical facilities 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 “critical facilities 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 critical facilities 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 critical facilities 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, 168,819 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 16, 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.

Critical facilities contractors by metro

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 critical facilities 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 critical facilities contractors are there based in the United States?

RevenueBase identified 4,014 critical facilities 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?

Fluor Corporation, headquartered in Irving, tops this list with the largest team on record.

Which city has the most critical facilities contractors?

Houston leads with 100 headquartered companies, followed by New York (68) and Dallas (45).

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 168,819 verified decision-maker contacts tracked across these 4,014 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 16, 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.