Company lists · Data refreshed September 2026

Top 25 Railway infrastructure consulting firms worldwide

Name: Railway 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 24,737 companies tracked

RevenueBase identified 24,737 company matches for railway infrastructure consulting firms worldwide as of September 2026 and tracks 893,611 professional contacts across them, including 247,285 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for railway infrastructure consulting firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026. Country and city lists for railway infrastructure consulting firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

24,737Companies

893,611Contacts tracked

247,285Verified emails

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The 25 largest railway infrastructure consulting firms worldwide

Ranked by team size

Top 25 of 24,737 company matches for railway infrastructure consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Sep 29, 2026	10001+	63,914 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Atkinsréalis	Exact match	Montreal, QC, CanadaHQ recorded Sep 29, 2026	10001+	22,733 contacts →
	Exact match “We are a world-class engineering services and nuclear organization.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	EGIS	Exact match	Saint-quentin-en-yvelines, FranceHQ recorded Sep 29, 2026	10001+	11,641 contacts →
	Exact match “Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Atkins	Exact match	Epsom, United KingdomHQ recorded Sep 29, 2026	10001+	9,297 contacts →
	Exact match “Atkins is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	MACE	Exact match	London, United KingdomHQ recorded Sep 29, 2026	5,001-10,000	8,458 contacts →
	Exact match “Mace Consult launched as a new and independent business on 5 March 2026, through a carve-out from Mace Group.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Tata Consulting Engineers	Exact match	Mumbai, IndiaHQ recorded Sep 29, 2026	5,001-10,000	8,440 contacts →
	Exact match “Tata Consulting Engineers Limited (TCE) is the largest Indian private sector engineering and project consultancy and an emerging global leader in integrated engineering solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Ch2m	Exact match	Englewood, CO, United StatesHQ recorded Sep 29, 2026	10001+	8,088 contacts →
	Exact match “CH2M is now Jacobs.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	HNTB	Exact match	Kansas City, MO, United StatesHQ recorded Sep 29, 2026	5,001-10,000	7,469 contacts →
	Exact match “For over a century, HNTB has shaped the built environment with distinctive expertise across a full spectrum of infrastructure solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Afcons Infrastructure Limited	Exact match	Veera Desai Road, IndiaHQ recorded Sep 29, 2026	1,001-5,000	6,807 contacts →
	Exact match “Afcons is flagship infrastructure engineering & construction company of the Shapoorji Pallonji Group.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 29, 2026	5,001-10,000	6,113 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Khatib & Alami	Exact match	Downtown, PolandHQ recorded Sep 29, 2026	5,001-10,000	5,792 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	SMEC	Exact match	North Sydney, AustraliaHQ recorded Sep 29, 2026	5,001-10,000	5,231 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Systra	Exact match	Paris, FranceHQ recorded Sep 29, 2026	10001+	5,069 contacts →
	Exact match “SYSTRA is one of the world's leading engineering and consultancy groups specialising in public transport and mobility solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	MTR Corporation Limited 香港鐵路有限公司	Exact match	Kowloon Bay, Hong KongHQ recorded Sep 29, 2026	10001+	4,764 contacts →
	Exact match “To Keep Cities Moving, MTR makes encounters happen and rendezvous for a more connected tomorrow.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Artelia	Exact match	Saint-ouen, FranceHQ recorded Sep 29, 2026	5,001-10,000	4,612 contacts →
	Exact match “Artelia is an international multidisciplinary consultancy, engineering and project management group specialising in mobility, water, energy, building and industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Michael Baker International	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 29, 2026	5,001-10,000	4,362 contacts →
	Exact match “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Power Engineers	Exact match	Hailey, ID, United StatesHQ recorded Sep 29, 2026	1,001-5,000	4,013 contacts →
	Exact match “POWER Engineers is now part of WSP.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Leighton Asia	Exact match	Wan Chai, Hong KongHQ recorded Sep 29, 2026	10001+	3,843 contacts →
	Exact match “Established in 1974 and headquartered in Hong Kong, Leighton Asia delivers a portfolio of high-profile infrastructure projects throughout Asia.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	China Harbour Engineering Co. LTD	Exact match	Beijing, ChinaHQ recorded Sep 29, 2026	5,001-10,000	3,835 contacts →
	Exact match “CHEC is focused on basic infrastructure construction, such as Marine Engineering, Dredging and Reclamation, Road and Bridge, Railways, Airports, Complete Plant, and other works.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	ICA Ingenieros Civiles Asociados	Exact match	MexicoHQ recorded Sep 29, 2026	10001+	3,752 contacts →
	Exact match “Somos una empresa mexicana con 68 años de experiencia en brindar soluciones integrales a retos complejos de infraestructura.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	STV	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	1,001-5,000	3,556 contacts →
	Exact match “STV offers professional services for the infrastructure that powers our lives.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Norconsult	Exact match	Sandvika, NorwayHQ recorded Sep 29, 2026	5,001-10,000	3,555 contacts →
	Exact match “Norconsult is a multidisciplinary engineering and design consultancy, providing services to clients in the public and private sectors worldwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	National Engineering Services Pakistan PVT Limited Nespak	Exact match	Lahore, PakistanHQ recorded Sep 29, 2026	5,001-10,000	3,266 contacts →
	Exact match “NESPAK is Pakistan’s premier consultancy organization (established in 1973).” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	CIMA	Exact match	Laval, QC, CanadaHQ recorded Sep 29, 2026	1,001-5,000	3,252 contacts →
	Exact match “CIMA+ fournit une gamme complète de services de génie-conseil partout au Canada.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	ECG Engineering Consultants Group S.A	Exact match	Cairo, EgyptHQ recorded Sep 29, 2026	1,001-5,000	3,138 contacts →
	Exact match “With more than 57 years of engineering excellence, ECG is one of the leading multidisciplinary engineering consultancies in the Middle East and Africa.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “railway infrastructure consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 24,737 railway infrastructure consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 247,285 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Railway infrastructure consulting firms worldwide at a glance

As of Sep 29, 2026

27.7%Verified-email coverage

36.1Average contacts per company

11-50Median size (employees)

1.2%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

10,783

11-50

8,076

51-200

3,648

201-500

1,150

501-1,000

437

1,001-5,000

395

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for railway infrastructure consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “railway infrastructure consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 247,285 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Railway infrastructure consulting firms by location

119 lists · largest first

Every Railway 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “railway infrastructure consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many railway infrastructure consulting firms are there worldwide?

RevenueBase identified 24,737 company matches for railway infrastructure consulting firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

AECOM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most railway infrastructure consulting firms?

The United States leads with 1,930 companies, followed by India (1,814) and the United Kingdom (1,654). Every railway infrastructure consulting firms list by country and city is linked on this page.

Which city has the most railway infrastructure consulting firms?

London leads with 303 company records, followed by Sao Paulo (264) and Tehran (189).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 247,285 professional contacts with verified work emails tracked across these 24,737 companies; direct dials are available where recorded.

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 SmartSearch, 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.