Company lists · Data refreshed September 2026

Top 25 Rail transit design consultants worldwide

Name: Rail transit design consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 2,807 companies tracked

RevenueBase identified 2,807 rail transit design consultants worldwide as of September 2026 and tracks 107,834 professional contacts across them, including 44,293 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers rail transit design 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 17, 2026. Country and city lists for rail transit design 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

2,807Companies

107,834Contacts tracked

44,293Verified emails

0Mobile numbers

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The 25 largest rail transit design consultants worldwide

Ranked by team size

Top 25 of 2,807 rail transit design consultants worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to rail transit design consultants: 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	Systra	Strong evidence	Paris, FranceHQ checked Sep 17, 2026	10001+	5,069 contacts →
	Strong evidence “SYSTRA is one of the world's leading engineering and consultancy groups specialising in public transport and mobility solutions.” Source: RevenueBase Database · checked Sep 17, 2026
2	Michael Baker International	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,362 contacts →
	Indirect 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 17, 2026
3	Italferr S.P.A	Indirect evidence	Rome, ItalyHQ checked Sep 17, 2026	1,001-5,000	2,701 contacts →
	Indirect evidence “At Italferr – a company belonging to the Italian State Railways Group Ferrovie dello Stato Italiane – we have built up a 30 year long experience at the forefront of cutting-edge…” Source: RevenueBase Database · checked Sep 17, 2026
4	LJA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,932 contacts →
	Indirect evidence “Employee-Owned.” Source: RevenueBase Database · checked Sep 17, 2026
5	Bowman Consulting	Indirect evidence	Reston, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,666 contacts →
	Indirect evidence “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Source: RevenueBase Database · checked Sep 17, 2026
6	CHA Consulting, INC	Partial evidence	Albany, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,639 contacts →
	Partial evidence “CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Source: RevenueBase Database · checked Sep 17, 2026
7	GPI Greenman-Pedersen, INC	Partial evidence	Melville, NY, United StatesHQ checked Sep 17, 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 17, 2026
8	Volkert, INC	Partial evidence	Mobile, AL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,199 contacts →
	Partial 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 17, 2026
9	TSO	Partial evidence	Chelles, FranceHQ checked Sep 17, 2026	1,001-5,000	1,109 contacts →
	Partial evidence “With more than 90 years’ experience in France and internationally, TSO (subsidiary of NGE) puts its expertise to work on: • rail services resumed between Oloron and Bedous • track…” Source: RevenueBase Database · checked Sep 17, 2026
10	WSB	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,053 contacts →
	Indirect evidence “Forge ahead.” Source: RevenueBase Database · checked Sep 17, 2026
11	Ikos Group	Indirect evidence	Levallois-perret, FranceHQ checked Sep 17, 2026	1,001-5,000	1,042 contacts →
	Indirect evidence “JOIN US : contact@ikosconsulting.com IKOS is a leading technology consulting firm specialized in the Railway sector with an additional offer in Energy.” Source: RevenueBase Database · checked Sep 17, 2026
12	GAI Consultants, INC	Strong evidence	Homestead, PA, United StatesHQ checked Sep 17, 2026	501-1,000	964 contacts →
	Strong evidence “Transforming ideas into reality® since 1958, GAI Consultants is an engineering, planning, and environmental consulting firm that provides customized solutions and local expertise…” Source: RevenueBase Database · checked Sep 17, 2026
13	Hatch Mott Macdonald	Indirect evidence	Iselin, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	762 contacts →
	Indirect evidence “This page is now closed.” Source: RevenueBase Database · checked Sep 17, 2026
14	Wade Trim	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 17, 2026	501-1,000	758 contacts →
	Indirect evidence “At Wade Trim, we are committed to maximizing the value of your infrastructure investment.” Source: RevenueBase Database · checked Sep 17, 2026
15	Railworks Corporation	Strong evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	721 contacts →
	Strong evidence “RailWorks builds and maintains rail transportation infrastructure that keeps people and goods moving across the United States and Canada.” Source: RevenueBase Database · checked Sep 17, 2026
16	Sferis	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	1,001-5,000	714 contacts →
	Indirect evidence “Date de création : Février 2012 Groupe : SNCF Directeur : M.” Source: RevenueBase Database · checked Sep 17, 2026
17	Tcdd Teknik Mühendislik VE Müşavirlik A.Ş	Indirect evidence	Ankara, TürkiyeHQ checked Sep 17, 2026	501-1,000	711 contacts →
	Indirect evidence “TCDD Teknik is an engineering company managed with 100% public capital.” Source: RevenueBase Database · checked Sep 17, 2026
18	Barge Design Solutions	Partial evidence	Nashville, TN, United StatesHQ checked Sep 17, 2026	501-1,000	612 contacts →
	Partial evidence “Barge Design Solutions is a multidisciplinary, employee-owned engineering and architecture firm driven by a simple purpose: to improve the lives of our people, clients, and…” Source: RevenueBase Database · checked Sep 17, 2026
19	ISL	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	501-1,000	611 contacts →
	Indirect evidence “At ISL, we share an enthusiasm for community infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
20	Whitman, Requardt And Associates, LLP	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 17, 2026	501-1,000	601 contacts →
	Indirect evidence “Established in 1915, WRA is a nationally-recognized engineering, architectural and environmental planning firm with a reputation for delivering exceptional work on time and within…” Source: RevenueBase Database · checked Sep 17, 2026
21	Neel-Schaffer, INC	Indirect evidence	Jackson, MS, United StatesHQ checked Sep 17, 2026	501-1,000	591 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 17, 2026
22	Aureos	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	583 contacts →
	Strong evidence “Aureos is a multi-disciplinary energy, transport networks specialist and engineering services provider, spanning the design, engineering, installation, maintenance, and crisis…” Source: RevenueBase Database · checked Sep 17, 2026
23	Amstein Walthert	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	563 contacts →
	Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tylin In Europe Latam	Partial evidence	Barcelona, ItalyHQ checked Sep 17, 2026	1,001-5,000	537 contacts →
	Partial evidence “As a global engineering firm, TYLin designs infrastructure solutions that connect and elevate communities.” Source: RevenueBase Database · checked Sep 17, 2026
25	Cobb, Fendley & Associates, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	524 contacts →
	Indirect evidence “Cobb, Fendley & Associates, Inc.(CobbFendley) is a nationally recognized infrastructure solutions firm with a regional focus and a commitment to excellence.” Source: RevenueBase Database · checked Sep 17, 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: rail transit design 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 rail transit design consultants.
Partial evidence: Its own public description names part of rail transit design consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail transit design 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 2,807 rail transit design consultants worldwide

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Rail transit design consultants worldwide at a glance

As of Sep 17, 2026

41.1%Verified-email coverage

38.4Average contacts per company

11-50Median size (employees)

1.9%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,230

11-50

924

51-200

420

201-500

123

501-1,000

1,001-5,000

5,001-10,000

10001+

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 rail transit design 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: 19 countries, largest first: the United States, Germany, the United Kingdom, Italy, India, Brazil, Australia, France, Canada, Switzerland and 9 more. Country and city lists for rail transit design consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “rail transit design 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 rail transit design 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 rail transit design 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, 44,293 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 17, 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.

Rail transit design consultants by location

19 lists · largest first

Every Rail transit design consultants 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 rail transit design 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 rail transit design consultants are there worldwide?

RevenueBase identified 2,807 rail transit design 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?

Systra, headquartered in Paris, tops this list with the largest team on record.

Which country has the most rail transit design consultants?

The United States leads with 844 companies, followed by Germany (306) and the United Kingdom (251). Every rail transit design consultants list by country and city is linked on this page.

Which city has the most rail transit design consultants?

London leads with 53 headquartered companies, followed by Sao Paulo (30) and Paris (26).

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 44,293 verified decision-maker contacts tracked across these 2,807 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 17, 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.