Company lists · Data refreshed September 2026

Top 25 Infrastructure companies based in the United States

Name: Infrastructure companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 5,504 companies tracked

RevenueBase identified 5,504 infrastructure companies headquartered in the United States as of September 2026 and tracks 465,554 professional contacts across them, including 177,456 with verified work emails. Houston is the largest hub.

This list covers infrastructure companies 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 15, 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 15, 2026 86% judged on-target in blind review

5,504Companies

465,554Contacts tracked

177,456Verified emails

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The 25 largest infrastructure companies based in the United States

Ranked by team size

Top 25 of 5,504 infrastructure companies based in the United States, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to 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	Kiewit	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 15, 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 15, 2026
2	Vertiv	Strong evidence	Columbus, OH, United StatesHQ checked Sep 15, 2026	10001+	14,610 contacts →
	Strong evidence “Vertiv is a global leader in critical digital infrastructure for applications in data centers, communication networks, and commercial and industrial environments.” Source: RevenueBase Database · checked Sep 15, 2026
3	Equinix	Strong evidence	Redwood City, CA, United StatesHQ checked Sep 15, 2026	10001+	13,641 contacts →
	Strong evidence “Equinix (Nasdaq: EQIX) is the world’s digital infrastructure company®, enabling digital leaders to harness a trusted platform to bring together and interconnect the foundational…” Source: RevenueBase Database · checked Sep 15, 2026
4	Black & Veatch	Indirect evidence	Overland Park, KS, United StatesHQ checked Sep 15, 2026	10001+	10,851 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
5	Kinder Morgan, INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	10001+	8,314 contacts →
	Strong evidence “Kinder Morgan, Inc.(NYSE: KMI) is one of the largest energy infrastructure companies in North America.” Source: RevenueBase Database · checked Sep 15, 2026
6	URS Corporation, An Aecom Company	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 15, 2026	10001+	7,706 contacts →
	Indirect evidence “URS Corporation operations are now affiliated with AECOM.” Source: RevenueBase Database · checked Sep 15, 2026
7	CDM Smith	Indirect evidence	Boston, MA, United StatesHQ checked Sep 15, 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 15, 2026
8	HNTB	Strong evidence	Kansas City, MO, United StatesHQ checked Sep 15, 2026	5,001-10,000	7,469 contacts →
	Strong 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 15, 2026
9	GE Capital	Strong evidence	Norwalk, CT, United StatesHQ checked Sep 15, 2026	5,001-10,000	7,253 contacts →
	Strong evidence “Every year, the infrastructure that powers our homes, transports our products, heals our loved ones, and keeps our societies moving forward needs a trillion dollars more…” Source: RevenueBase Database · checked Sep 15, 2026
10	Centerpoint Energy	Indirect evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	5,001-10,000	6,576 contacts →
	Indirect evidence “CenterPoint Energy, Inc.(NYSE: CNP) is a multi-state electric and natural gas delivery company serving approximately 7 million metered customers across Indiana, Minnesota, Ohio…” Source: RevenueBase Database · checked Sep 15, 2026
11	Nextera Energy Resources	Strong evidence	Juno Beach, FL, United StatesHQ checked Sep 15, 2026	10001+	6,221 contacts →
	Strong evidence “NextEra Energy Resources, LLC, together with its affiliated entities,("NextEra Energy Resources") is one of the largest energy infrastructure companies in North America.” Source: RevenueBase Database · checked Sep 15, 2026
12	Mortenson	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 15, 2026	5,001-10,000	5,298 contacts →
	Indirect evidence “Mortenson is a U.S-based, top-25 builder, developer and provider of energy and engineering services committed to helping organizations move their strategies forward.” Source: RevenueBase Database · checked Sep 15, 2026
13	Bentley Systems	Strong evidence	Exton, PA, United StatesHQ checked Sep 15, 2026	5,001-10,000	5,230 contacts →
	Strong evidence “Around the world, infrastructure professionals rely on software from Bentley Systems to help them design, build, and operate better and more resilient infrastructure for…” Source: RevenueBase Database · checked Sep 15, 2026
14	Crown Castle	Indirect evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	4,508 contacts →
	Indirect evidence “We build stronger networks, together.” Source: RevenueBase Database · checked Sep 15, 2026
15	Michael Baker International	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 15, 2026	5,001-10,000	4,362 contacts →
	Strong 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 15, 2026
16	Nisource	Indirect evidence	Merrillville, IN, United StatesHQ checked Sep 15, 2026	5,001-10,000	4,359 contacts →
	Indirect evidence “NiSource (NYSE: NI) helps energize the lives of its nearly 4 million natural gas and electric customers across six states.” Source: RevenueBase Database · checked Sep 15, 2026
17	Clark Construction Group	Strong evidence	United StatesHQ checked Sep 15, 2026	1,001-5,000	4,223 contacts →
	Strong evidence “Clark Construction Group is one of the largest building and infrastructure companies in the United States.” Source: RevenueBase Database · checked Sep 15, 2026
18	The Walsh Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 15, 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 15, 2026
19	Primoris Services Corporation	Strong evidence	Dallas, TX, United StatesHQ checked Sep 15, 2026	10001+	4,089 contacts →
	Strong 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 15, 2026
20	Fieldcore	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 15, 2026	10001+	3,700 contacts →
	Indirect evidence “GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Source: RevenueBase Database · checked Sep 15, 2026
21	Balfour Beatty US	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 15, 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 15, 2026
22	STV	Strong evidence	New York, NY, United StatesHQ checked Sep 15, 2026	1,001-5,000	3,556 contacts →
	Strong evidence “STV offers professional services for the infrastructure that powers our lives.” Source: RevenueBase Database · checked Sep 15, 2026
23	PPL Corporation	Indirect evidence	Allentown, PA, United StatesHQ checked Sep 15, 2026	5,001-10,000	3,513 contacts →
	Indirect evidence “PPL Corporation’s family of companies provide electricity and natural gas to power our customers’ lives.” Source: RevenueBase Database · checked Sep 15, 2026
24	Mastec Communications Group	Indirect evidence	Coral Gables, FL, United StatesHQ checked Sep 15, 2026	5,001-10,000	3,207 contacts →
	Indirect evidence “MasTec Communications Group (MCG) is a division of MasTec that provides comprehensive services and turnkey solutions for Telecom operators.” Source: RevenueBase Database · checked Sep 15, 2026
25	Mastec	Strong evidence	Coral Gables, FL, United StatesHQ checked Sep 15, 2026	10001+	3,163 contacts →
	Strong 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 15, 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: 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 infrastructure companies.
Partial evidence: Its own public description names part of infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 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 5,504 infrastructure companies based in the United States

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Infrastructure companies based in the United States at a glance

As of Sep 15, 2026

38.1%Verified-email coverage

84.6Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · Houston

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

1,524

11-50

1,791

51-200

1,222

201-500

450

501-1,000

204

1,001-5,000

226

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 5,504 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 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “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 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 infrastructure companies, 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, 177,456 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 15, 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.

Infrastructure companies 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 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 infrastructure companies are there based in the United States?

RevenueBase identified 5,504 infrastructure companies 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?

Kiewit, headquartered in Omaha, tops this list with the largest team on record.

Which city has the most infrastructure companies?

Houston leads with 210 headquartered companies, followed by New York (117) and Miami (78).

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 177,456 verified decision-maker contacts tracked across these 5,504 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 15, 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.