Company lists · Data refreshed September 2026

Top 25 Transportation departments based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,001 companies tracked

RevenueBase identified 1,001 transportation departments headquartered in the United States as of September 2026 and tracks 184,358 professional contacts across them, including 41,774 with verified work emails. New York is the largest hub.

This list covers transportation departments 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 19, 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 19, 2026 86% judged on-target in blind review

1,001Companies

184,358Contacts tracked

41,774Verified emails

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The 25 largest transportation departments based in the United States

Ranked by team size

Top 25 of 1,001 transportation departments based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to transportation departments: 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	Enterprise Mobility	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 19, 2026	10001+	30,389 contacts →
	Indirect evidence “At Enterprise Mobility™ we are paving a new way forward by creating better experiences for how we move.” Source: RevenueBase Database · checked Sep 19, 2026
2	Metropolitan Transportation Authority	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	10001+	13,406 contacts →
	Partial evidence “The Metropolitan Transportation Authority is North America's largest transportation network, serving a population of 15.3 million people in the area fanning out from New York City…” Source: RevenueBase Database · checked Sep 19, 2026
3	MV Transportation	Partial evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	10001+	3,989 contacts →
	Partial evidence “MV Transportation is a leading transit services provider in the United States, partnering with over 100 transit agencies and municipalities, schools and corporations nationwide.” Source: RevenueBase Database · checked Sep 19, 2026
4	Transdev North America	Indirect evidence	Lombard, IL, United StatesHQ checked Sep 19, 2026	10001+	3,578 contacts →
	Indirect evidence “As an operator and global integrator of mobility, Transdev – The mobility company – empowers freedom to move every day thanks to safe, reliable and innovative solutions that serve…” Source: RevenueBase Database · checked Sep 19, 2026
5	Dart Dallas Area Rapid Transit	Partial evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,407 contacts →
	Partial evidence “REGIONAL TRANSPORTATION COMPANY DART is far more than just "the thing you ride." It is your "trusted guide" to discovering all that North Texas has to offer.” Source: RevenueBase Database · checked Sep 19, 2026
6	Transcore	Partial evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,608 contacts →
	Partial evidence “A leader in the transportation industry, TransCore provides innovative, technical solutions and engineering services for next-generation Open Road Tolling and Traffic Management…” Source: RevenueBase Database · checked Sep 19, 2026
7	Trimet	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,514 contacts →
	Indirect evidence “Working at TriMet means making connections.” Source: RevenueBase Database · checked Sep 19, 2026
8	SAN Francisco Municipal Transportation Agency Sfmta	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,474 contacts →
	Strong evidence “The San Francisco Municipal Transportation Agency (‘SFMTA’), a department of the City and County of San Francisco is responsible for the management of all ground transportation in…” Source: RevenueBase Database · checked Sep 19, 2026
9	VTA	Partial evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,226 contacts →
	Partial evidence “Santa Clara Valley Transportation Authority (VTA) is an independent special district that provides sustainable, accessible, community-focused transportation options that are…” Source: RevenueBase Database · checked Sep 19, 2026
10	Metro Transit	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 19, 2026	1,001-5,000	937 contacts →
	Indirect evidence “Make a difference with a career at Metro Transit!” Source: RevenueBase Database · checked Sep 19, 2026
11	Roadsafe Traffic Systems	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	923 contacts →
	Indirect evidence “RoadSafe is the national leader in traffic safety services and products.” Source: RevenueBase Database · checked Sep 19, 2026
12	South Carolina Department Of Transportation	Strong evidence	Columbia, SC, United StatesHQ checked Sep 19, 2026	1,001-5,000	894 contacts →
	Strong evidence “Welcome to the South Carolina Department of Transportation, where employees use innovative ways to develop and maintain safe and efficient transportation systems in the state of…” Source: RevenueBase Database · checked Sep 19, 2026
13	Transystems	Partial evidence	Kansas City, MO, United StatesHQ checked Sep 19, 2026	1,001-5,000	850 contacts →
	Partial evidence “TranSystems plans, designs, and oversees construction to enhance the transportation networks and infrastructure that makes communities more livable today and in the future.” Source: RevenueBase Database · checked Sep 19, 2026
14	Hallcon Corporation	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	5,001-10,000	840 contacts →
	Partial evidence “Hallcon is a transportation and infrastructure services company focused on turnkey solutions for clients such as technology companies, manufacturers, railroads, universities…” Source: RevenueBase Database · checked Sep 19, 2026
15	Flagger Force	Indirect evidence	Hummelstown, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	824 contacts →
	Indirect evidence “At Flagger Force, we believe that keeping our communities moving goes further than traffic control.” Source: RevenueBase Database · checked Sep 19, 2026
16	Lochner	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	802 contacts →
	Partial evidence “Founded in 1944, Lochner is a trusted infrastructure services provider for aviation, surface transportation and water clients across the United States.” Source: RevenueBase Database · checked Sep 19, 2026
17	NEW Jersey Department Of Transportation	Strong evidence	Ewing, NJ, United StatesHQ checked Sep 19, 2026	1,001-5,000	745 contacts →
	Strong evidence “The primary mission of the New Jersey Department of Transportation is to provide a safe, reliable and efficient multi-modal transportation network which serves the mobility needs…” Source: RevenueBase Database · checked Sep 19, 2026
18	Alabama Department Of Transportation	Partial evidence	Montgomery, United StatesHQ checked Sep 19, 2026	1,001-5,000	627 contacts →
	Partial evidence “ALDOT's mission is to provide a safe, efficient, environmentally sound intermodal transportation system for all users, especially the taxpayers of Alabama.” Source: RevenueBase Database · checked Sep 19, 2026
19	North Texas Tollway Authority	Indirect evidence	Plano, TX, United StatesHQ checked Sep 19, 2026	501-1,000	612 contacts →
	Indirect evidence “NTTA's mission is to provide a safe and reliable toll road system, increase value and mobility options for our customers, operate the Authority in a businesslike manner, protect…” Source: RevenueBase Database · checked Sep 19, 2026
20	Keolis Commuter Services	Indirect evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	603 contacts →
	Indirect evidence “Keolis is a global leader in public transport operations, management and innovation with partners in 16 countries around the world.” Source: RevenueBase Database · checked Sep 19, 2026
21	Clever Devices	Partial evidence	Woodbury, VA, United StatesHQ checked Sep 19, 2026	201-500	548 contacts →
	Partial evidence “Clever Devices designs innovative technology solutions for all modes of public transportation, including fixed-route, bus rapid transit, paratransit and rail.” Source: RevenueBase Database · checked Sep 19, 2026
22	Central Ohio Transit Authority Cota	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 19, 2026	1,001-5,000	487 contacts →
	Indirect evidence “Central Ohio’s Mobility Solutions Provider.” Source: RevenueBase Database · checked Sep 19, 2026
23	Carter Express, INC	Indirect evidence	Anderson, IN, United StatesHQ checked Sep 19, 2026	1,001-5,000	461 contacts →
	Indirect evidence “Since being founded in 1983, Carter Express has been delivering world-class customer service.” Source: RevenueBase Database · checked Sep 19, 2026
24	Fehr & Peers	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 19, 2026	201-500	448 contacts →
	Partial evidence “We are a transportation planning and engineering firm with 24 offices and over 400 staff nationwide.” Source: RevenueBase Database · checked Sep 19, 2026
25	Infrastructure Consulting & Engineering	Partial evidence	West Columbia, SC, United StatesHQ checked Sep 19, 2026	501-1,000	425 contacts →
	Partial evidence “Founded in 2005, Infrastructure Consulting & Engineering, LLC (ICE) provides transportation consulting and engineering services across the Southeast.” Source: RevenueBase Database · checked Sep 19, 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: transportation departments. 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 transportation departments.
Partial evidence: Its own public description names part of transportation departments, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transportation departments. 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 1,001 transportation departments based in the United States

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Transportation departments based in the United States at a glance

As of Sep 19, 2026

22.7%Verified-email coverage

184.2Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

368

11-50

275

51-200

152

201-500

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 1,001 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 transportation departments, 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 “transportation departments”. 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 transportation departments), 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 transportation departments, 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, 41,774 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 19, 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 transportation departments, 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 transportation departments are there based in the United States?

RevenueBase identified 1,001 transportation departments 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?

Enterprise Mobility, headquartered in St. Louis, tops this list with the largest team on record.

Which city has the most transportation departments?

New York leads with 18 headquartered companies, followed by Washington (18) and Orlando (15).

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 41,774 verified decision-maker contacts tracked across these 1,001 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 19, 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.