Company lists · Data refreshed September 2026

Top 25 Civil infrastructure contractors based in the United States

RevenueBase identified 5,525 civil infrastructure contractors headquartered in the United States as of September 2026 and tracks 355,741 professional contacts across them, including 129,591 with verified work emails. Houston is the largest hub.

This list covers civil infrastructure 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
5,525Companies
355,741Contacts tracked
129,591Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest civil infrastructure contractors based in the United States

Ranked by team size
Top 25 of 5,525 civil infrastructure 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 civil infrastructure 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDallas, TX, United StatesHQ checked Sep 16, 202610001+63,914 contacts →

Partial evidence

“AECOM is the global infrastructure leader, committed to delivering a better world.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceOmaha, NE, United StatesHQ checked Sep 16, 202610001+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
3Indirect evidenceOverland Park, KS, United StatesHQ checked Sep 16, 202610001+10,851 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 16, 202610001+7,706 contacts →

Indirect evidence

“URS Corporation operations are now affiliated with AECOM.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceBoston, MA, United StatesHQ checked Sep 16, 20265,001-10,0007,527 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
6Partial evidenceKansas City, MO, United StatesHQ checked Sep 16, 20265,001-10,0007,469 contacts →

Partial 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
7Partial evidencePittsburgh, PA, United StatesHQ checked Sep 16, 20265,001-10,0004,362 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
8Partial evidenceUnited StatesHQ checked Sep 16, 20261,001-5,0004,223 contacts →

Partial evidence

“Clark Construction Group is one of the largest building and infrastructure companies in the United States.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceChicago, IL, United StatesHQ checked Sep 16, 20265,001-10,0004,161 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
10Indirect evidenceDallas, TX, United StatesHQ checked Sep 16, 20261,001-5,0003,578 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
11Partial evidenceNew York, NY, United StatesHQ checked Sep 16, 20261,001-5,0003,556 contacts →

Partial evidence

“STV offers professional services for the infrastructure that powers our lives.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceCoral Gables, FL, United StatesHQ checked Sep 16, 202610001+3,163 contacts →

Partial 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
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 16, 20261,001-5,0003,067 contacts →

Partial evidence

“As a global engineering firm, we design infrastructure solutions that connect and elevate communities.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 16, 20261,001-5,0002,344 contacts →

Indirect evidence

“At Kleinfelder, we have been connecting great people to the best work since 1961.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceBrownsville, WI, United StatesHQ checked Sep 16, 202610001+2,339 contacts →

Partial evidence

“Established in 1959 in Brownsville, WI, Michels is an international leader in energy and infrastructure construction.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceSparks, NC, United StatesHQ checked Sep 16, 20261,001-5,0002,207 contacts →

Indirect evidence

“KCI is a 100-percent employee-owned engineering, consulting and construction firm serving clients throughout the United States and beyond.”

Source: RevenueBase Database · checked Sep 16, 2026
17Strong evidenceMonroe, OH, United StatesHQ checked Sep 16, 202610001+2,019 contacts →

Strong evidence

“The nation's largest concrete contractor, Baker Construction specializes in all types of concrete construction and related solutions, including civil construction, deep…”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceHouston, TX, United StatesHQ checked Sep 16, 2026n/a1,776 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidencePhiladelphia, MS, United StatesHQ checked Sep 16, 20265,001-10,0001,713 contacts →

Indirect evidence

“Yates Construction is part of The Yates Companies, Inc.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceServing Clients Across The Us, MD, United StatesHQ checked Sep 16, 20261,001-5,0001,688 contacts →

Partial evidence

“Johnson, Mirmiran & Thompson is an employee owned, multi-disciplined firm offering a full array of planning, design, and construction phase consulting services for infrastructure…”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceAlbany, NY, United StatesHQ checked Sep 16, 20261,001-5,0001,639 contacts →

Indirect evidence

“CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceThe Woodlands, TX, United StatesHQ checked Sep 16, 20261,001-5,0001,449 contacts →

Strong 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 16, 2026
23Partial evidenceFargo, ND, United StatesHQ checked Sep 16, 20261,001-5,0001,362 contacts →

Partial evidence

“Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidencePhoenix, AZ, United StatesHQ checked Sep 16, 20265,001-10,0001,358 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceMelville, NY, United StatesHQ checked Sep 16, 20261,001-5,0001,354 contacts →

Indirect evidence

“With a staff of over 1,800 professionals, Greenman-Pedersen, Inc.(GPI) is a leading engineering consulting firm that specializes in the innovative design and construction of…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 5,525 civil infrastructure contractors based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 129,591 reachable decision-makers.

Free signup · no credit card

View the full list →

Civil infrastructure contractors based in the United States at a glance

As of Sep 16, 2026
36.4%Verified-email coverage
64.4Average contacts per company
11-50Median size (employees)
2.4%Largest-city concentration · Houston
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
1,483
11-50
1,898
51-200
1,399
201-500
430
501-1,000
160
1,001-5,000
110
5,001-10,000
16
10001+
12

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 5,525 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 civil infrastructure 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 “civil infrastructure 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 civil infrastructure 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 civil infrastructure 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, 129,591 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.

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 civil infrastructure 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 civil infrastructure contractors are there based in the United States?

RevenueBase identified 5,525 civil infrastructure 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?

AECOM, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most civil infrastructure contractors?

Houston leads with 134 headquartered companies, followed by Phoenix (55) and Miami (48).

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 129,591 verified decision-maker contacts tracked across these 5,525 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.

Ready to reach these companies? Verified emails and direct dials for all 5,525 civil infrastructure contractors based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.