Company lists · Data refreshed September 2026
Top 25 Public transit authorities worldwide
RevenueBase identified 1,188 public transit authorities worldwide as of September 2026 and tracks 275,630 professional contacts across them, including 61,835 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers public transit authorities 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 20, 2026. Country and city lists for public transit authorities 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 public transit authorities worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 37,296 contacts → | ||||
Strong evidence “SNCF is a world leader in public transportation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 17,124 contacts → | ||||
Strong evidence “The RATP Group is the world's third largest public transport company, carrying 12 million people every day in France and around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 8,808 contacts → | ||||
Partial evidence “Operator and leading independent private mobility group, Transdev empowers freedom to move every day thanks to safe, reliable and innovative solutions that serve the common good.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 7,742 contacts → | ||||
Partial evidence “The Toronto Transit Commission has a rich history dating back to 1921.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 6,489 contacts → | ||||
Partial evidence “CAF is a global leader in comprehensive transportation systems, shaping the future of sustainable mobility.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5,718 contacts → | ||||
Strong evidence “Keolis is a global leader in the shared mobility market and a committed partner to public transport authorities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5,180 contacts → | ||||
Partial evidence “Metrolinx is undertaking the largest transportation investment in Ontario’s history to get you where you need to go better, faster, easier, while also operating GO Transit, UP…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5,012 contacts → | ||||
Partial evidence “Build your future as part of a dynamic company committed to transforming one of the premier transportation brands in North America.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3,791 contacts → | ||||
Indirect evidence “At DSB we realize that job satisfaction is infectious.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3,578 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3,533 contacts → | ||||
Strong evidence “SMRT Corporation Ltd (SMRT) is a leading public transport services provider in Singapore.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3,468 contacts → | ||||
Strong evidence “The Massachusetts Bay Transportation Authority, often referred to as the MBTA or simply The T, is the public operator of most bus, subway, commuter rail and ferry systems in the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3,378 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3,294 contacts → | ||||
Indirect evidence “Quatorzième entreprise en importance au Québec, la STM assure quelque 1,4 million de déplacements par jour moyen de semaine.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3,045 contacts → | ||||
Indirect evidence “Acercar a las personas a vivir una mejor ciudad, es nuestro desafío permanente porque entendemos que las expectativas y las necesidades de las personas son diversas y están en…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2,958 contacts → | ||||
Strong evidence “RATP Dev is a subsidiary of the RATP Group, global leader in high-capacity urban rail and the world's third largest public transport operator.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2,941 contacts → | ||||
Partial evidence “Metro is unique among the nation’s transportation agencies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2,807 contacts → | ||||
Indirect evidence “De Lijn brengt dagelijks honderdduizenden reizigers naar hun bestemming.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2,723 contacts → | ||||
Strong evidence “We are the #1 public transport Company in Italy, the historical operator of the network in the Milan metropolitan area.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2,397 contacts → | ||||
Indirect evidence “About Prasarana Malaysia Berhad Prasarana Malaysia Berhad (“Prasarana”) is a wholly-owned Government company established by the Ministry of Finance, set up to facilitate…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2,058 contacts → | ||||
Partial evidence “KiwiRail is proud to be the backbone of New Zealand’s integrated transport network as well as one of the country’s biggest tourism operators and most significant property owners…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,835 contacts → | ||||
Strong evidence “With over 100 years of history, Atac is Rome's municipal utility for public transport services and Italy's leading urban mobility operator, as well as being one of the largest…” Source: RevenueBase Database · checked Sep 20, 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: public transit authorities. 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 public transit authorities.
- Partial evidence
- Its own public description names part of public transit authorities, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name public transit authorities. 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 1,188 public transit authorities worldwide
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Public transit authorities worldwide at a glance
As of Sep 20, 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 public transit authorities, 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 public transit authorities are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “public transit authorities”. 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 public transit authorities), 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 public transit authorities, 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, 61,835 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 20, 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.
Public transit authorities by location
6 lists · largest firstEvery Public transit authorities list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 public transit authorities, 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 public transit authorities are there worldwide?
RevenueBase identified 1,188 public transit authorities 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?
Groupe Sncf, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most public transit authorities?
The United States leads with 212 companies, followed by Brazil (171) and Italy (117). Every public transit authorities list by country and city is linked on this page.
Which city has the most public transit authorities?
Sao Paulo leads with 14 headquartered companies, followed by Rio De Janeiro (7) and Fortaleza (6).
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 61,835 verified decision-maker contacts tracked across these 1,188 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 20, 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.