Company lists · Data refreshed October 2026

Top 25 Infrastructure project management consultancies worldwide

RevenueBase identified 48,234 infrastructure project management consultancies worldwide as of October 2026 and tracks 1,715,437 professional contacts across them, including 622,933 with verified work emails and 258,576 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers infrastructure project management consultancies 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 October 1, 2026. Country and city lists for infrastructure project management consultancies 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 Oct 1, 2026 86% judged on-target in blind review
48,234Companies
1,715,437Contacts tracked
622,933Verified emails
258,576Mobile numbers
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The 25 largest infrastructure project management consultancies worldwide

Ranked by team size
Top 25 of 48,234 infrastructure project management consultancies worldwide, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure project management consultancies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDallas, TX, United StatesHQ checked Oct 1, 202610001+63,914 contacts →

Partial evidence

“AECOM is the global infrastructure leader, committed to delivering a better world.”

Source: RevenueBase Database · checked Oct 1, 2026
2Indirect evidenceDallas, TX, United StatesHQ checked Oct 1, 202610001+46,351 contacts →

Indirect evidence

“At Jacobs, we're challenging today to reinvent tomorrow – delivering outcomes and solutions for the world's most complex challenges.”

Source: RevenueBase Database · checked Oct 1, 2026
3Partial evidenceAmsterdam, NetherlandsHQ checked Oct 1, 202610001+33,846 contacts →

Partial evidence

“Arcadis is a leading global partner, delivering transformative projects with businesses, cities and industries.”

Source: RevenueBase Database · checked Oct 1, 2026
4Indirect evidenceEdmonton, AB, CanadaHQ checked Oct 1, 202610001+28,416 contacts →

Indirect evidence

“Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.”

Source: RevenueBase Database · checked Oct 1, 2026
5Strong evidenceReston, VA, United StatesHQ checked Oct 1, 202610001+25,068 contacts →

Strong evidence

“Bechtel is a trusted engineering, construction and project management partner to industry and government.”

Source: RevenueBase Database · checked Oct 1, 2026
6Indirect evidenceMontreal, QC, CanadaHQ checked Oct 1, 202610001+22,733 contacts →

Indirect evidence

“We are a world-class engineering services and nuclear organization.”

Source: RevenueBase Database · checked Oct 1, 2026
7Partial evidenceMontreal, QC, CanadaHQ checked Oct 1, 202610001+20,382 contacts →

Partial evidence

“WSP is one of the world’s leading engineering, science and infrastructure solutions firms, uniting its multidisciplinary expertise to shape communities to advance humanity.”

Source: RevenueBase Database · checked Oct 1, 2026
8Partial evidenceLondon, United KingdomHQ checked Oct 1, 202610001+19,072 contacts →

Partial evidence

“We are an engineering, management and development consultancy and one of the largest wholly employee-owned firms of our kind.”

Source: RevenueBase Database · checked Oct 1, 2026
9Indirect evidenceCopenhagen, DenmarkHQ checked Oct 1, 202610001+15,715 contacts →

Indirect evidence

“Ramboll is a global architecture, engineering and consultancy company founded in Denmark in 1945.”

Source: RevenueBase Database · checked Oct 1, 2026
10Strong evidencePasadena, CA, United StatesHQ checked Oct 1, 202610001+12,999 contacts →

Strong evidence

“Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.”

Source: RevenueBase Database · checked Oct 1, 2026
11Indirect evidenceStockholm, SwedenHQ checked Oct 1, 202610001+12,850 contacts →

Indirect evidence

“AFRY is a European leader in engineering, design, and advisory services, with a global reach.”

Source: RevenueBase Database · checked Oct 1, 2026
12Indirect evidenceSaint-quentin-en-yvelines, FranceHQ checked Oct 1, 202610001+11,641 contacts →

Indirect evidence

“Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm.”

Source: RevenueBase Database · checked Oct 1, 2026
13Indirect evidenceOverland Park, KS, United StatesHQ checked Oct 1, 202610001+10,851 contacts →

Indirect evidence

Source: RevenueBase Database · checked Oct 1, 2026
14Indirect evidenceNorth Ryde, AustraliaHQ checked Oct 1, 202610001+10,666 contacts →

Indirect evidence

“Enabling communities to thrive.”

Source: RevenueBase Database · checked Oct 1, 2026
15Partial evidenceLondon, United KingdomHQ checked Oct 1, 202610001+10,507 contacts →

Partial evidence

“Balfour Beatty is a leading international infrastructure group.”

Source: RevenueBase Database · checked Oct 1, 2026
16Strong evidenceBuenos Aires, ArgentinaHQ checked Oct 1, 202610001+9,509 contacts →

Strong evidence

“Techint Engineering & Construction provides project management, engineering, procurement and construction services on a global basis for large-scale projects in the Oil & Gas…”

Source: RevenueBase Database · checked Oct 1, 2026
17Indirect evidenceEpsom, United KingdomHQ checked Oct 1, 202610001+9,297 contacts →

Indirect evidence

“Atkins is now AtkinsRéalis.”

Source: RevenueBase Database · checked Oct 1, 2026
18Indirect evidenceLondon, United KingdomHQ checked Oct 1, 20265,001-10,0008,458 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 Oct 1, 2026
19Strong evidenceNorth Sydney, United KingdomHQ checked Oct 1, 202610001+8,215 contacts →

Strong evidence

“Laing O’Rourke is a global engineering and manufacturing-led construction leader, delivering state-of-the-art infrastructure and buildings projects in the UK, Australia and the…”

Source: RevenueBase Database · checked Oct 1, 2026
20Indirect evidenceSan Francisco, CA, United StatesHQ checked Oct 1, 202610001+7,706 contacts →

Indirect evidence

“URS Corporation operations are now affiliated with AECOM.”

Source: RevenueBase Database · checked Oct 1, 2026
21Indirect evidenceBoston, MA, United StatesHQ checked Oct 1, 20265,001-10,0007,527 contacts →

Indirect evidence

“CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.”

Source: RevenueBase Database · checked Oct 1, 2026
22Partial evidenceKansas City, MO, United StatesHQ checked Oct 1, 20265,001-10,0007,469 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 Oct 1, 2026
23Indirect evidenceWindsor, CT, United StatesHQ checked Oct 1, 20265,001-10,0007,017 contacts →

Indirect evidence

“TRC, a member of WSP, stands for adaptability.”

Source: RevenueBase Database · checked Oct 1, 2026
24Partial evidenceLondon, United KingdomHQ checked Oct 1, 202610001+6,667 contacts →

Partial evidence

“Who we are: Amey is a global, integrated infrastructure consultancy and operations partner.”

Source: RevenueBase Database · checked Oct 1, 2026
25Strong evidenceMount Laurel, NJ, United StatesHQ checked Oct 1, 20261,001-5,0006,653 contacts →

Strong evidence

“Hill International provides program, project, and construction management services for clients in a range of sectors undertaking major construction projects across the world.”

Source: RevenueBase Database · checked Oct 1, 2026

Showing 25 of 48,234 infrastructure project management consultancies worldwide

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Infrastructure project management consultancies worldwide at a glance

As of Oct 1, 2026
36.3%Verified-email coverage
15.1%Mobile-number coverage
35.6Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · London
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
26,232
11-50
14,139
51-200
5,146
201-500
1,387
501-1,000
498
1,001-5,000
456
5,001-10,000
64
10001+
109

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 infrastructure project management consultancies, 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
42 countries, largest first: the United States, Brazil, the United Kingdom, Australia, France, Germany, the Netherlands, Italy, Canada, Spain and 32 more. Country and city lists for infrastructure project management consultancies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “infrastructure project management consultancies”. 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 infrastructure project management consultancies), 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 infrastructure project management consultancies, 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, 622,933 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 October 1, 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.

Infrastructure project management consultancies by location

209 lists · largest first

Every Infrastructure project management consultancies 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 infrastructure project management consultancies, 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 infrastructure project management consultancies are there worldwide?

RevenueBase identified 48,234 infrastructure project management consultancies worldwide as of October 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 infrastructure project management consultancies?

The United States leads with 8,207 companies, followed by Brazil (5,518) and the United Kingdom (5,328). Every infrastructure project management consultancies list by country and city is linked on this page.

Which city has the most infrastructure project management consultancies?

London leads with 1195 headquartered companies, followed by Sao Paulo (992) and Sydney (515).

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 622,933 verified decision-maker contacts tracked across these 48,234 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.