Company lists · Data refreshed September 2026

Top 25 Rail infrastructure consulting firms worldwide

Name: Rail infrastructure consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 15,226 companies tracked

RevenueBase identified 15,226 rail infrastructure consulting firms worldwide as of September 2026 and tracks 549,359 professional contacts across them, including 159,670 with verified work emails. The United States is the largest market and London the largest hub.

This list covers rail infrastructure 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 29, 2026. Country and city lists for rail infrastructure 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 29, 2026 86% judged on-target in blind review

15,226Companies

549,359Contacts tracked

159,670Verified emails

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The 25 largest rail infrastructure consulting firms worldwide

Ranked by team size

Top 25 of 15,226 rail infrastructure consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to rail infrastructure 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	AECOM	Partial evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	10001+	63,914 contacts →
	Partial evidence “AECOM is the global infrastructure leader, committed to delivering a better world.” Source: RevenueBase Database · checked Sep 29, 2026
2	Hitachi Rail	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	10001+	11,800 contacts →
	Partial evidence “Hitachi Rail is committed to driving a sustainable mobility transition and helping every passenger, customer and community enjoy more connected, seamless and sustainable transport.” Source: RevenueBase Database · checked Sep 29, 2026
3	MACE	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	5,001-10,000	8,458 contacts →
	Indirect evidence “Mace Consult launched as a new and independent business on 5 March 2026, through a carve-out from Mace Group.” Source: RevenueBase Database · checked Sep 29, 2026
4	Tata Consulting Engineers	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	5,001-10,000	8,440 contacts →
	Partial evidence “Tata Consulting Engineers Limited (TCE) is the largest Indian private sector engineering and project consultancy and an emerging global leader in integrated engineering solutions.” Source: RevenueBase Database · checked Sep 29, 2026
5	HNTB	Partial evidence	Kansas City, MO, United StatesHQ checked Sep 29, 2026	5,001-10,000	7,469 contacts →
	Partial evidence “For over a century, HNTB has shaped the built environment with distinctive expertise across a full spectrum of infrastructure solutions.” Source: RevenueBase Database · checked Sep 29, 2026
6	Terracon	Partial evidence	Olathe, KS, United StatesHQ checked Sep 29, 2026	5,001-10,000	6,113 contacts →
	Partial evidence “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Source: RevenueBase Database · checked Sep 29, 2026
7	Khatib & Alami	Indirect evidence	Downtown, PolandHQ checked Sep 29, 2026	5,001-10,000	5,792 contacts →
	Indirect evidence “Khatib & Alami (K&A) is a multidisciplinary design consultancy which operates primarily across the Middle East & Africa, Levant, Central and South-East Asia, and Europe.” Source: RevenueBase Database · checked Sep 29, 2026
8	SMEC	Indirect evidence	North Sydney, AustraliaHQ checked Sep 29, 2026	5,001-10,000	5,231 contacts →
	Indirect evidence “SMEC is a global engineering, management and development consultancy with a 70-year history of delivering advanced solutions on a global scale across urban development…” Source: RevenueBase Database · checked Sep 29, 2026
9	Systra	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	10001+	5,069 contacts →
	Indirect 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 29, 2026
10	MTR Corporation Limited 香港鐵路有限公司	Indirect evidence	Kowloon Bay, Hong KongHQ checked Sep 29, 2026	10001+	4,764 contacts →
	Indirect evidence “To Keep Cities Moving, MTR makes encounters happen and rendezvous for a more connected tomorrow.” Source: RevenueBase Database · checked Sep 29, 2026
11	Michael Baker International	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 29, 2026	5,001-10,000	4,362 contacts →
	Strong 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 29, 2026
12	Progress Rail, A Caterpillar Company	Strong evidence	Albertville, AL, United StatesHQ checked Sep 29, 2026	5,001-10,000	3,701 contacts →
	Strong evidence “Our team creates lifelong customer relationships, supplying comprehensive rolling stock and infrastructure solutions for the global rail industry and setting the standard for…” Source: RevenueBase Database · checked Sep 29, 2026
13	Norconsult	Indirect evidence	Sandvika, NorwayHQ checked Sep 29, 2026	5,001-10,000	3,555 contacts →
	Indirect evidence “Norconsult is a multidisciplinary engineering and design consultancy, providing services to clients in the public and private sectors worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
14	KEO International Consultants	Indirect evidence	Safat, KuwaitHQ checked Sep 29, 2026	1,001-5,000	3,038 contacts →
	Indirect evidence “From shaping iconic skylines to crafting sustainable communities, KEO builds legacies for a better tomorrow.” Source: RevenueBase Database · checked Sep 29, 2026
15	دار الرياض DAR AL Riyadh	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 29, 2026	1,001-5,000	2,720 contacts →
	Indirect evidence “Founded in the mid-1970s by Prince Turki bin Abdullah bin Abdulrahman Al Saud, a forward-thinking engineering pioneer, Dar Al Riyadh has evolved into the Kingdom's leading…” Source: RevenueBase Database · checked Sep 29, 2026
16	Italferr S.P.A	Indirect evidence	Rome, ItalyHQ checked Sep 29, 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 29, 2026
17	Colas Rail	Partial evidence	Puteaux, FranceHQ checked Sep 29, 2026	5,001-10,000	2,572 contacts →
	Partial evidence “Passion, Purpose, Challenge : at Colas Rail, we are driven by change, this is why our employees imagine each day a world where innovative and eco-friendly contribute to the…” Source: RevenueBase Database · checked Sep 29, 2026
18	Multiconsult	Partial evidence	Oslo, NorwayHQ checked Sep 29, 2026	1,001-5,000	2,553 contacts →
	Partial evidence “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Source: RevenueBase Database · checked Sep 29, 2026
19	TYPSA	Strong evidence	San Sebastian De Los Reyes, SpainHQ checked Sep 29, 2026	1,001-5,000	2,422 contacts →
	Strong evidence “TYPSA is an independent consulting and engineering services group, and a leader in infrastructure, energy, environmental and city solutions.” Source: RevenueBase Database · checked Sep 29, 2026
20	CYD Ingeniería	Indirect evidence	Santiago, ChileHQ checked Sep 29, 2026	1,001-5,000	2,390 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 29, 2026
21	Kleinfelder	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,344 contacts →
	Indirect evidence “At Kleinfelder, we have been connecting great people to the best work since 1961.” Source: RevenueBase Database · checked Sep 29, 2026
22	Feedback Infra	Partial evidence	Gurgaon, IndiaHQ checked Sep 29, 2026	5,001-10,000	1,956 contacts →
	Partial evidence “Feedback Infra is India’s leading infrastructure services company with interests across sectors like transportation, energy and urban infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026
23	R&q Ingeniería	Indirect evidence	Santiago, ChileHQ checked Sep 29, 2026	1,001-5,000	1,939 contacts →
	Indirect evidence “Con más de 49 años en el mercado, R&Q Ingeniería, de capitales chilenos, se ha consolidado como una consultora líder en la región.” Source: RevenueBase Database · checked Sep 29, 2026
24	LJA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,932 contacts →
	Indirect evidence “Employee-Owned.” Source: RevenueBase Database · checked Sep 29, 2026
25	Megawide Construction Corporation	Partial evidence	Quezon City, PhilippinesHQ checked Sep 29, 2026	1,001-5,000	1,903 contacts →
	Partial evidence “Megawide is one of the leading engineering and infrastructure firms in the Philippines today, with a decisive portfolio in Engineering, Procurement, Construction and…” Source: RevenueBase Database · checked Sep 29, 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 infrastructure 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 rail infrastructure consulting firms.
Partial evidence: Its own public description names part of rail infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail infrastructure 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 15,226 rail infrastructure consulting firms worldwide

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Rail infrastructure consulting firms worldwide at a glance

As of Sep 29, 2026

29.1%Verified-email coverage

36.1Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

6,529

11-50

4,916

51-200

2,388

201-500

736

501-1,000

268

1,001-5,000

248

5,001-10,000

10001+

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 rail infrastructure 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 rail infrastructure consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “rail infrastructure 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 rail infrastructure 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 rail infrastructure 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, 159,670 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 29, 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 infrastructure consulting firms by location

83 lists · largest first

Every Rail infrastructure 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 rail infrastructure 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 rail infrastructure consulting firms are there worldwide?

RevenueBase identified 15,226 rail infrastructure 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?

AECOM, headquartered in Dallas, tops this list with the largest team on record.

Which country has the most rail infrastructure consulting firms?

The United States leads with 1,760 companies, followed by India (971) and the United Kingdom (923). Every rail infrastructure consulting firms list by country and city is linked on this page.

Which city has the most rail infrastructure consulting firms?

London leads with 167 headquartered companies, followed by Sao Paulo (151) and Tehran (118).

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 159,670 verified decision-maker contacts tracked across these 15,226 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 29, 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.