Company lists · Data refreshed September 2026

Top 25 Highway safety consulting firms based in the United States

Name: Highway safety consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 589 companies tracked

RevenueBase identified 589 highway safety consulting firms headquartered in the United States as of September 2026 and tracks 15,282 professional contacts across them, including 7,771 with verified work emails. Tampa is the largest hub.

This list covers highway safety consulting firms 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 28, 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 28, 2026 86% judged on-target in blind review

589Companies

15,282Contacts tracked

7,771Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest highway safety consulting firms based in the United States

Ranked by team size

Top 25 of 589 highway safety consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to highway safety consulting firms: 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	GPI Greenman-Pedersen, INC	Partial evidence	Melville, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,354 contacts →
	Partial 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 28, 2026
2	Roadsafe Traffic Systems	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	923 contacts →
	Partial evidence “RoadSafe is the national leader in traffic safety services and products.” Source: RevenueBase Database · checked Sep 28, 2026
3	Transystems	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 28, 2026	1,001-5,000	850 contacts →
	Indirect 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 28, 2026
4	Fehr & Peers	Indirect evidence	Walnut Creek, CA, United StatesHQ checked Sep 28, 2026	201-500	448 contacts →
	Indirect evidence “We are a transportation planning and engineering firm with 24 offices and over 400 staff nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
5	Kittelson & Associates, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	201-500	411 contacts →
	Indirect evidence “We solve complex transportation problems to improve people's everyday lives.” Source: RevenueBase Database · checked Sep 28, 2026
6	Burns Engineering, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	401 contacts →
	Indirect evidence “Burns is a nationally respected provider of specialized engineering services, bringing highly-technical, sought-after engineering expertise to transportation, critical…” Source: RevenueBase Database · checked Sep 28, 2026
7	Metric Engineering	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	201-500	345 contacts →
	Partial evidence “Metric was founded in 1976 on the principle of providing personalized consulting engineering services "done right the first time and every time." Today, we are among the top…” Source: RevenueBase Database · checked Sep 28, 2026
8	Altus Traffic Management	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	300 contacts →
	Partial evidence “At ALTUS Traffic USA, we are defined by our 24/7 leadership in establishing safer communities and roadways in the US and abroad.” Source: RevenueBase Database · checked Sep 28, 2026
9	Cambridge Systematics, INC	Indirect evidence	Medford, MA, United StatesHQ checked Sep 28, 2026	201-500	263 contacts →
	Indirect evidence “We are transportation specialists, dedicated to ensuring that transportation investments deliver the best possible results.” Source: RevenueBase Database · checked Sep 28, 2026
10	ATCS	Partial evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	201-500	262 contacts →
	Partial evidence “ATCS is a leading engineering and management consulting firm offering comprehensive solutions across a wide range of fields, including transportation, traffic planning…” Source: RevenueBase Database · checked Sep 28, 2026
11	Alta Planning Design	Strong evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	51-200	252 contacts →
	Strong evidence “Alta is a consulting firm with a mission to create active communities where bicycling and walking are safe, healthy, fun, and normal daily activities.” Source: RevenueBase Database · checked Sep 28, 2026
12	Infrastructure Engineering INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	224 contacts →
	Partial evidence “Infrastructure Engineering Inc.(IEI) is a majority African American-owned, multi-disciplinary consulting firm with offices in eight states that delivers design engineering…” Source: RevenueBase Database · checked Sep 28, 2026
13	Naik Consulting Group, PC	Indirect evidence	East Brunswick, NJ, United StatesHQ checked Sep 28, 2026	51-200	216 contacts →
	Indirect evidence “The Naik Group has been a trusted partner in the engineering community for over 27 years.” Source: RevenueBase Database · checked Sep 28, 2026
14	TPD	Indirect evidence	Pottstown, PA, United StatesHQ checked Sep 28, 2026	201-500	213 contacts →
	Indirect evidence “We're in the business of moving things forward: projects, communities, careers, and relationships.” Source: RevenueBase Database · checked Sep 28, 2026
15	Corradino	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	201-500	205 contacts →
	Partial evidence “Corradino is a leading multidisciplinary engineering, planning, and consulting firm, dedicated to delivering innovative solutions in transportation and infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
16	Felsburg Holt & Ullevig	Partial evidence	Greenwood Village, CO, United StatesHQ checked Sep 28, 2026	51-200	197 contacts →
	Partial evidence “Felsburg Holt & Ullevig is a consulting firm specializing in transportation planning, traffic engineering, civil engineering design, water resources, and environmental services.” Source: RevenueBase Database · checked Sep 28, 2026
17	Transpo Group	Indirect evidence	Kirkland, WA, United StatesHQ checked Sep 28, 2026	51-200	193 contacts →
	Indirect evidence “Today’s project challenges require world class expertise, innovative approaches, and the knowledge to effectively deliver cost-effective solutions.” Source: RevenueBase Database · checked Sep 28, 2026
18	DKS Associates	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	51-200	192 contacts →
	Indirect evidence “Our work helps clients explore options, make sound decisions, and build a transformative future.” Source: RevenueBase Database · checked Sep 28, 2026
19	Gcw, INC	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 28, 2026	51-200	168 contacts →
	Indirect evidence “GCW is a leading provider of a complete range of services related to civil engineering (traffic and transportation engineering, land planning, water, wastewater, hydraulics, flood…” Source: RevenueBase Database · checked Sep 28, 2026
20	SCJ Alliance	Partial evidence	Lacey, WA, United StatesHQ checked Sep 28, 2026	51-200	167 contacts →
	Partial evidence “SCJ Alliance is a 100% employee-owned consulting firm delivering civil engineering, transportation planning and design, cable-propelled transit, environmental and land use…” Source: RevenueBase Database · checked Sep 28, 2026
21	American Traffic Solutions	Indirect evidence	Mesa, AZ, United StatesHQ checked Sep 28, 2026	501-1,000	155 contacts →
	Indirect evidence “American Traffic Solutions became Verra Mobility in 2018.” Source: RevenueBase Database · checked Sep 28, 2026
22	Patel, Greene & Associates, LLC PGA	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	51-200	151 contacts →
	Indirect evidence “Patel, Greene and Associates (PGA) is a leader in innovative transportation engineering and planning.” Source: RevenueBase Database · checked Sep 28, 2026
23	Civiltech Engineering, INC	Partial evidence	Itasca, IL, United StatesHQ checked Sep 28, 2026	51-200	144 contacts →
	Partial evidence “Civiltech is a consulting engineering firm that provides a full range of transportation and civil engineering services which include transportation, civil, construction…” Source: RevenueBase Database · checked Sep 28, 2026
24	Avenue Consultants	Indirect evidence	Taylorsville, UT, United StatesHQ checked Sep 28, 2026	51-200	131 contacts →
	Indirect evidence “Avenue Consultants is a specialized transportation and land development engineering and planning firm that provides innovative and professional services to clients in the public…” Source: RevenueBase Database · checked Sep 28, 2026
25	IH Engineers, P.C	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 28, 2026	51-200	127 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 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: highway safety consulting firms. 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 highway safety consulting firms.
Partial evidence: Its own public description names part of highway safety consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name highway safety consulting firms. 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 589 highway safety consulting firms based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 7,771 reachable decision-makers.

Free signup · no credit card

View the full list →

Highway safety consulting firms based in the United States at a glance

As of Sep 28, 2026

50.9%Verified-email coverage

25.9Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · Tampa

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

305

11-50

183

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 589 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 highway safety consulting firms, 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 “highway safety consulting firms”. 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 highway safety consulting firms), 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 highway safety consulting firms, 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, 7,771 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 28, 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 highway safety consulting firms, 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 highway safety consulting firms are there based in the United States?

RevenueBase identified 589 highway safety consulting firms 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?

GPI Greenman-Pedersen, INC, headquartered in Melville, tops this list with the largest team on record.

Which city has the most highway safety consulting firms?

Tampa leads with 15 headquartered companies, followed by Houston (11) and New York (11).

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 7,771 verified decision-maker contacts tracked across these 589 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 589 highway safety consulting firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Highway safety consulting firms by geography

Browse the directory

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.