Company lists · Data refreshed September 2026

Top 25 Transportation engineering companies based in the United States

Name: Transportation engineering 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 16, 2026 4,545 companies tracked

RevenueBase identified 4,545 company matches for transportation engineering companies associated with the United States as of September 2026 and tracks 486,821 professional contacts across them, including 198,424 with verified work emails. Houston is the largest hub.

This list covers company matches for transportation engineering companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 16, 2026 How this list was built

4,545Companies

486,821Contacts tracked

198,424Verified emails

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The 25 largest transportation engineering companies based in the United States

Ranked by team size

Top 25 of 4,545 company matches for transportation engineering companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Sep 16, 2026	10001+	63,914 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2	Bechtel Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 16, 2026	10001+	25,068 contacts →
	Exact match “Bechtel is a trusted engineering, construction and project management partner to industry and government.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3	Kiewit	Exact match	Omaha, NE, United StatesHQ recorded Sep 16, 2026	10001+	19,465 contacts →
	Exact match “At Kiewit, the projects we deliver make a difference, and we offer opportunities for you to make one, too.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Sep 16, 2026	10001+	12,999 contacts →
	Exact match “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5	Burns & Mcdonnell	Exact match	Kansas City, MO, United StatesHQ recorded Sep 16, 2026	10001+	12,497 contacts →
	Exact match “At Burns & McDonnell, our engineers, construction professionals, architects, planners, technologists and scientists do more than plan, design and construct.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6	Black & Veatch	Exact match	Overland Park, KS, United StatesHQ recorded Sep 16, 2026	10001+	10,851 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Sep 16, 2026	10001+	9,318 contacts →
	Exact match “What if you could shape built and natural environments – and the future of those that use them?” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8	Ch2m	Exact match	Englewood, CO, United StatesHQ recorded Sep 16, 2026	10001+	8,088 contacts →
	Exact match “CH2M is now Jacobs.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9	URS Corporation, An Aecom Company	Exact match	San Francisco, CA, United StatesHQ recorded Sep 16, 2026	10001+	7,706 contacts →
	Exact match “URS Corporation operations are now affiliated with AECOM.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10	CDM Smith	Exact match	Boston, MA, United StatesHQ recorded Sep 16, 2026	5,001-10,000	7,527 contacts →
	Exact match “CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11	HNTB	Exact match	Kansas City, MO, United StatesHQ recorded Sep 16, 2026	5,001-10,000	7,469 contacts →
	Exact match “For over a century, HNTB has shaped the built environment with distinctive expertise across a full spectrum of infrastructure solutions.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 16, 2026	5,001-10,000	6,113 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13	Granite Construction	Exact match	Watsonville, CA, United StatesHQ recorded Sep 16, 2026	5,001-10,000	4,567 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14	Michael Baker International	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 16, 2026	5,001-10,000	4,362 contacts →
	Exact match “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15	Clark Construction Group	Exact match	United StatesHQ recorded Sep 16, 2026	1,001-5,000	4,223 contacts →
	Exact match “Clark Construction Group is one of the largest building and infrastructure companies in the United States.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16	Balfour Beatty US	Exact match	Dallas, TX, United StatesHQ recorded Sep 16, 2026	1,001-5,000	3,578 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17	STV	Exact match	New York, NY, United StatesHQ recorded Sep 16, 2026	1,001-5,000	3,556 contacts →
	Exact match “STV offers professional services for the infrastructure that powers our lives.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18	Mastec	Exact match	Coral Gables, FL, United StatesHQ recorded Sep 16, 2026	10001+	3,163 contacts →
	Exact match “MasTec companies have been involved in some of the largest and most complex infrastructure construction projects across the country.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19	TYLIN	Exact match	San Francisco, CA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	3,067 contacts →
	Exact match “As a global engineering firm, we design infrastructure solutions that connect and elevate communities.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20	Dewberry	Exact match	Fairfax, VA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	2,795 contacts →
	Exact match “Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21	Brown And Caldwell	Exact match	Walnut Creek, CA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	2,473 contacts →
	Exact match “Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22	Geosyntec Consultants	Exact match	Boca Raton, FL, United StatesHQ recorded Sep 16, 2026	1,001-5,000	2,393 contacts →
	Exact match “Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23	Kleinfelder	Exact match	San Diego, CA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	2,344 contacts →
	Exact match “At Kleinfelder, we have been connecting great people to the best work since 1961.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24	VHB	Exact match	Watertown, MA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	2,277 contacts →
	Exact match “We are VHB.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	2,210 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “transportation engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 4,545 transportation engineering companies based in the United States

See the full list, filter by size, metro and specialty, and access 198,424 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transportation engineering companies based in the United States at a glance

As of Sep 16, 2026

40.8%Verified-email coverage

107.1Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

1,588

11-50

1,535

51-200

888

201-500

256

501-1,000

124

1,001-5,000

110

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 4,545 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “transportation engineering companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 198,424 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Transportation engineering companies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “transportation engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transportation engineering companies are there based in the United States?

RevenueBase identified 4,545 company matches for transportation engineering companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

AECOM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most transportation engineering companies?

Houston leads with 122 company records, followed by New York (89) and Dallas (71).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 198,424 professional contacts with verified work emails tracked across these 4,545 companies; direct dials are available where recorded.

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 SmartSearch, 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.