Company lists · Data refreshed September 2026
Top 25 Congestion management consultants worldwide
RevenueBase identified 1,925 congestion management consultants worldwide as of September 2026 and tracks 26,659 professional contacts across them, including 8,998 with verified work emails. The United States is the largest market and London the largest hub.
This list covers congestion management consultants 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 27, 2026. Country and city lists for congestion management consultants 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.
The 25 largest congestion management consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 783 contacts → | ||||
Indirect evidence “PTV Group provides software solutions and consulting services to empower mobility for a cleaner and smarter future.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 471 contacts → | ||||
Indirect evidence “SRF Consulting Group is a full-service consulting firm with a broad base of award-winning services, including- Transportation and Transit Planning - Community and Land Use…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 467 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 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 411 contacts → | ||||
Indirect evidence “We solve complex transportation problems to improve people's everyday lives.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 387 contacts → | ||||
Indirect evidence “setec international est une filiale du Groupe setec, un des premiers groupes français d’ingénierie.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 379 contacts → | ||||
Indirect evidence “See website.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 370 contacts → | ||||
Indirect evidence “LEA Group (LEA) is a privately-held, global consulting firm providing planning, engineering design, and construction administration services for urban infrastructure projects.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 357 contacts → | ||||
Indirect evidence “TRL is a team of expert scientists, engineers and specialists who work together with our clients and partners to Shape Transport TRL: • Publishes software that helps the world’s…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 332 contacts → | ||||
Indirect evidence “LSA is a diversified environmental, transportation, and community planning firm that evolved from a small consulting firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 300 contacts → | ||||
Partial evidence “SYSTRA Ardanuy, founded in 1992, is an international engineering consulting firm specialising in studies, project design, construction management, safety engineering (ISA), and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 300 contacts → | ||||
Indirect 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 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 285 contacts → | ||||
Indirect evidence “Meet Goudappel.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 281 contacts → | ||||
Indirect evidence “Fondée en 2014, INGEVA est une société spécialisée dans l'ingénierie de la mobilité durable.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 263 contacts → | ||||
Indirect evidence “We are transportation specialists, dedicated to ensuring that transportation investments deliver the best possible results.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 261 contacts → | ||||
Partial evidence “ALG is a leading global consultancy team with more than 30 years of professional experience working alongside the top players in the transport sector (operators, infrastructure…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 238 contacts → | ||||
Indirect evidence “Há 27 anos no mercado, a GCT – Gerenciamento e Controle de Trânsito SA - oferece serviços especializados de engenharia de tráfego, contribuindo eficazmente para a melhoria do…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 225 contacts → | ||||
Partial evidence “Roads & Traffic Consultancy has been serving the MENA region since 2008, providing specialized expertise in transportation and mobility systems.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 197 contacts → | ||||
Indirect 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 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 192 contacts → | ||||
Indirect evidence “Our work helps clients explore options, make sound decisions, and build a transformative future.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 183 contacts → | ||||
Indirect evidence “For 30 years, our professionals have created and implemented sustainable, cost-effective transportation solutions for commercial, residential, governmental, and institutional…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 175 contacts → | ||||
Indirect evidence “SYSTRA Asia is part of SYSTRA Group, one of the world’s leading engineering and consulting groups specializing in transport and mobility solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 162 contacts → | ||||
Indirect evidence “Nelson\Nygaard Consulting Associates, Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
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: congestion management consultants. 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 congestion management consultants.
- Partial evidence
- Its own public description names part of congestion management consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name congestion management consultants. 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 1,925 congestion management consultants worldwide
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Congestion management consultants worldwide at a glance
As of Sep 27, 2026Companies by employee count
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 congestion management consultants, 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 congestion management consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “congestion management consultants”. 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 congestion management consultants), 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 congestion management consultants, 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, 8,998 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 27, 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.
Congestion management consultants by location
15 lists · largest firstEvery Congestion management consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Congestion management consultants based in the United States434
- Congestion management consultants based in Australia137
- Congestion management consultants based in the United Kingdom115
- Congestion management consultants based in Germany101
- Congestion management consultants based in France84
- Congestion management consultants based in Brazil81
- Congestion management consultants based in Canada71
- Congestion management consultants based in the Netherlands62
- Congestion management consultants based in India53
- Congestion management consultants based in Switzerland40
- Congestion management consultants based in Italy38
- Congestion management consultants based in Spain33
- Congestion management consultants based in New Zealand30
- Congestion management consultants based in Chile29
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 congestion management consultants, 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 congestion management consultants are there worldwide?
RevenueBase identified 1,925 congestion management consultants 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?
PTV Group, headquartered in Karlsruhe, tops this list with the largest team on record.
Which country has the most congestion management consultants?
The United States leads with 434 companies, followed by Australia (137) and the United Kingdom (115). Every congestion management consultants list by country and city is linked on this page.
Which city has the most congestion management consultants?
London leads with 29 headquartered companies, followed by Paris (21) and Sydney (18).
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 8,998 verified decision-maker contacts tracked across these 1,925 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 27, 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.