Company lists · Data refreshed September 2026

Top 25 Highway maintenance consulting firms worldwide

RevenueBase identified 4,014 highway maintenance consulting firms worldwide as of September 2026 and tracks 113,946 professional contacts across them, including 38,209 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers highway maintenance consulting firms worldwide, 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. Country and city lists for highway maintenance consulting firms follow the table.

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
4,014Companies
113,946Contacts tracked
38,209Verified emails
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The 25 largest highway maintenance consulting firms worldwide

Ranked by team size
Top 25 of 4,014 highway maintenance consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to highway maintenance 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePittsburgh, PA, United StatesHQ checked Sep 28, 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 28, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0003,556 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceSantiago, ChileHQ checked Sep 28, 20261,001-5,0002,390 contacts →

Indirect evidence

“Nuestro propósito es contribuir al progreso sostenible de Latinoamérica y el mundo, mejorando la calidad de vida de las comunidades y dejando huella en las personas.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceBaltimore, MD, United StatesHQ checked Sep 28, 20261,001-5,0001,641 contacts →

Indirect evidence

“RK & K is a full-service planning, engineering, environmental, and construction management/inspection firm serving a wide range of clients throughout the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceIndiaHQ checked Sep 28, 20261,001-5,0001,585 contacts →

Indirect evidence

“RITES is a consultancy agency rendering services in transporation sector and infrastructure areas.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceMelville, NY, United StatesHQ checked Sep 28, 20261,001-5,0001,354 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
7Partial evidenceUnited StatesHQ checked Sep 28, 20261,001-5,0001,292 contacts →

Partial evidence

“Consor is a leading engineering and consulting firm advancing intelligent, future-ready infrastructure across transportation and water systems.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceParis, FranceHQ checked Sep 28, 202610001+1,205 contacts →

Partial evidence

“Le groupe Colas est leader mondial de la construction, de l'entretien et de la maintenance des infrastructures de transport.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceMobile, AL, United StatesHQ checked Sep 28, 20261,001-5,0001,199 contacts →

Indirect evidence

“Volkert’s history began in 1925 when it was founded in New Orleans as Doullut & Erwin to provide waterfront and heavy construction services, as well as airport design services…”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceNew Delhi, IndiaHQ checked Sep 28, 20261,001-5,0001,092 contacts →

Partial evidence

“also known as, is a premier engineering, planning and management consulting organization in India, operational since 1993.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceSevenoaks, United KingdomHQ checked Sep 28, 20261,001-5,000974 contacts →

Indirect evidence

“FM Conway is a leading infrastructure services company delivering vital services in transportation, the built environment and open spaces for communities and businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,000923 contacts →

Indirect evidence

“RoadSafe is the national leader in traffic safety services and products.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceJaipur, IndiaHQ checked Sep 28, 20261,001-5,000856 contacts →

Indirect evidence

“Theme Engineering Services Pvt.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceKansas City, MO, United StatesHQ checked Sep 28, 20261,001-5,000850 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
15Indirect evidenceIselin, NJ, United StatesHQ checked Sep 28, 20261,001-5,000762 contacts →

Indirect evidence

“This page is now closed.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceBauru, BrazilHQ checked Sep 28, 20261,001-5,000715 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSerra, BrazilHQ checked Sep 28, 20261,001-5,000707 contacts →

Indirect evidence

“Empresa de engenharia civil para obras de infraestrutura.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceShinjuku-ku, JapanHQ checked Sep 28, 2026201-500699 contacts →

Partial evidence

“Oriental Consultants Global is a consulting company based in Japan that facilitates development in countries all around the world.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceJackson, MS, United StatesHQ checked Sep 28, 2026501-1,000591 contacts →

Indirect evidence

“Neel-Schaffer is a multi-disciplined engineering, planning and construction management firm that was founded in 1983 and today is one of the largest private, employee-owned…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceNoida, IndiaHQ checked Sep 28, 20261,001-5,000567 contacts →

Indirect evidence

“SA Infrastructure Consultants Pvt.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceHoffman Estates, IL, United StatesHQ checked Sep 28, 2026201-500540 contacts →

Partial evidence

“Walker Consultants provides planning, design, engineering, forensics, restoration and consulting for the built environment.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceAmman, JordanHQ checked Sep 28, 2026501-1,000511 contacts →

Partial evidence

“Engicon is a multidisciplinary consulting engineering firm based in Amman.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceBelo Horizonte, BrazilHQ checked Sep 28, 2026501-1,000491 contacts →

Partial evidence

“A Strata Engenharia, certificada pela NBR ISO é uma empresa de Engenharia Consultiva com especialização em Infra-Estrutura Viária, abrangendo as áreas rodoviária, urbana…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceDüsseldorf, GermanyHQ checked Sep 28, 20261,001-5,000483 contacts →

Indirect evidence

“Mit über 1200 Expert*innen an 22 Standorten und über 60 Jahren Erfahrung sind wir eine der führenden inhabergeführten Ingenieurgesellschaften Deutschlands.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceAbu Dhabi And Dubai, United Arab EmiratesHQ checked Sep 28, 2026201-500467 contacts →

Indirect evidence

“Tatweer is one of the fastest-growing firms in the region that emerged from the core of Transportation, Traffic and Road engineering industries to offer a unique blend between…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 4,014 highway maintenance consulting firms worldwide

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Highway maintenance consulting firms worldwide at a glance

As of Sep 28, 2026
33.5%Verified-email coverage
28.4Average contacts per company
11-50Median size (employees)
0.9%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,683
11-50
1,328
51-200
661
201-500
187
501-1,000
66
1,001-5,000
65
5,001-10,000
6
10001+
4

Email recency is reported on each country list linked below.

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 maintenance 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.
Coverage
Every country. Country and city lists for highway maintenance consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “highway maintenance 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 maintenance 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 maintenance consulting firms, and records with no verified work email.
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, 38,209 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.

Highway maintenance consulting firms by location

24 lists · largest first

Every Highway maintenance consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 maintenance 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 maintenance consulting firms are there worldwide?

RevenueBase identified 4,014 highway maintenance consulting firms worldwide 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?

Michael Baker International, headquartered in Pittsburgh, tops this list with the largest team on record.

Which country has the most highway maintenance consulting firms?

The United States leads with 1,117 companies, followed by Brazil (234) and India (229). Every highway maintenance consulting firms list by country and city is linked on this page.

Which city has the most highway maintenance consulting firms?

Sao Paulo leads with 37 headquartered companies, followed by London (32) and Tehran (32).

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 38,209 verified decision-maker contacts tracked across these 4,014 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.

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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.