Company lists · Data refreshed September 2026

Top 25 Infrastructure law firms worldwide

Name: Infrastructure law firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 28,341 companies tracked

RevenueBase identified 28,341 infrastructure law firms worldwide as of September 2026 and tracks 892,256 professional contacts across them, including 344,438 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers infrastructure law 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 21, 2026. Country and city lists for infrastructure law 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 21, 2026 86% judged on-target in blind review

28,341Companies

892,256Contacts tracked

344,438Verified emails

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The 25 largest infrastructure law firms worldwide

Ranked by team size

Top 25 of 28,341 infrastructure law firms worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure law 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 21, 2026	10001+	63,914 contacts →
	Partial evidence “AECOM is the global infrastructure leader, committed to delivering a better world.” Source: RevenueBase Database · checked Sep 21, 2026
2	Stantec	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 21, 2026	10001+	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 Sep 21, 2026
3	Black & Veatch	Indirect evidence	Overland Park, KS, United StatesHQ checked Sep 21, 2026	10001+	10,851 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
4	Norton Rose Fulbright	Indirect evidence	London, United StatesHQ checked Sep 21, 2026	5,001-10,000	8,589 contacts →
	Indirect evidence “Norton Rose Fulbright provides a full scope of legal services to the world’s preeminent corporations and financial institutions.” Source: RevenueBase Database · checked Sep 21, 2026
5	Saudi Binladin Group SBG	Indirect evidence	Jeddah, Saudi ArabiaHQ checked Sep 21, 2026	10001+	7,880 contacts →
	Indirect evidence “Saudi Binladin Group (SBG) is the trendsetter in construction and architectural innovation.” Source: RevenueBase Database · checked Sep 21, 2026
6	URS Corporation, An Aecom Company	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	10001+	7,706 contacts →
	Indirect evidence “URS Corporation operations are now affiliated with AECOM.” Source: RevenueBase Database · checked Sep 21, 2026
7	CDM Smith	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	5,001-10,000	7,527 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 Sep 21, 2026
8	White & Case LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	7,485 contacts →
	Partial evidence “White & Case is a global law firm with longstanding offices in the markets that matter today.” Source: RevenueBase Database · checked Sep 21, 2026
9	HNTB	Partial evidence	Kansas City, MO, United StatesHQ checked Sep 21, 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 21, 2026
10	A&o Shearman	Partial evidence	Hamburg, United KingdomHQ checked Sep 21, 2026	5,001-10,000	6,574 contacts →
	Partial evidence “A&O Shearman transforms the way law is practiced, to deliver unparalleled results for our clients' most complex matters – everywhere in the world.” Source: RevenueBase Database · checked Sep 21, 2026
11	Freshfields	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	5,001-10,000	6,487 contacts →
	Partial evidence “Freshfields is a global firm with over 280 years’ experience of anticipating change, setting new standards and shaping the future of law.” Source: RevenueBase Database · checked Sep 21, 2026
12	Webuild	Partial evidence	Rozzano (mi), ItalyHQ checked Sep 21, 2026	10001+	5,966 contacts →
	Partial evidence “Webuild is a global leader in the construction of large, complex infrastructure, with a focus on sustainable mobility, hydropower, water treatment and supply, and green buildings.” Source: RevenueBase Database · checked Sep 21, 2026
13	K&l Gates	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,861 contacts →
	Indirect evidence “At K&L Gates, we foster an inclusive and collaborative environment across our fully integrated global platform that enables us to diligently combine the knowledge and expertise of…” Source: RevenueBase Database · checked Sep 21, 2026
14	Skadden, Arps, Slate, Meagher & Flom LLP And Affiliates	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,540 contacts →
	Indirect evidence “Skadden, Arps, Slate, Meagher & Flom LLP and Affiliates delivers the highest quality advice and novel solutions to legal challenges, enabling clients to achieve their business…” Source: RevenueBase Database · checked Sep 21, 2026
15	Michael Baker International	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	5,001-10,000	4,362 contacts →
	Partial 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 21, 2026
16	ICA Ingenieros Civiles Asociados	Indirect evidence	MexicoHQ checked Sep 21, 2026	10001+	3,752 contacts →
	Indirect evidence “Somos una empresa mexicana con 68 años de experiencia en brindar soluciones integrales a retos complejos de infraestructura.” Source: RevenueBase Database · checked Sep 21, 2026
17	Gibson Dunn	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,735 contacts →
	Partial evidence “Gibson Dunn is a leading global law firm, advising clients on significant transactions and disputes.” Source: RevenueBase Database · checked Sep 21, 2026
18	STV	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,556 contacts →
	Partial evidence “STV offers professional services for the infrastructure that powers our lives.” Source: RevenueBase Database · checked Sep 21, 2026
19	Squire Patton Boggs	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,343 contacts →
	Partial evidence “Squire Patton Boggs is a full service global law firm providing insight at the point where law, business and government meet, giving you a voice, supporting your ambitions and…” Source: RevenueBase Database · checked Sep 21, 2026
20	Cooley LLP	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,341 contacts →
	Indirect evidence “Clients partner with Cooley on transformative deals, complex IP and regulatory matters, and high-stakes litigation.” Source: RevenueBase Database · checked Sep 21, 2026
21	WSP In India	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	10001+	3,317 contacts →
	Indirect evidence “We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.” Source: RevenueBase Database · checked Sep 21, 2026
22	TYLIN	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,067 contacts →
	Partial evidence “As a global engineering firm, we design infrastructure solutions that connect and elevate communities.” Source: RevenueBase Database · checked Sep 21, 2026
23	Eiffage Génie Civil	Indirect evidence	Vélizy-villacoublay, FranceHQ checked Sep 21, 2026	10001+	3,061 contacts →
	Indirect evidence “En France, en Europe et à l’international, Eiffage Génie Civil déploie son expertise et son savoir-faire pour la conception et la construction de nombreux ouvrages.” Source: RevenueBase Database · checked Sep 21, 2026
24	KEO International Consultants	Indirect evidence	Safat, KuwaitHQ checked Sep 21, 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 21, 2026
25	Foley & Lardner LLP	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,884 contacts →
	Partial evidence “Foley & Lardner LLP stands at the nexus of the Energy & Infrastructure, Health Care & Life Sciences, Innovative Technology, and Manufacturing Sectors.” Source: RevenueBase Database · checked Sep 21, 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: infrastructure law 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 infrastructure law firms.
Partial evidence: Its own public description names part of infrastructure law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure law 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 28,341 infrastructure law firms worldwide

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Infrastructure law firms worldwide at a glance

As of Sep 21, 2026

38.6%Verified-email coverage

31.5Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

15,003

11-50

9,334

51-200

2,581

201-500

713

501-1,000

269

1,001-5,000

263

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 infrastructure law 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 infrastructure law firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “infrastructure law 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 infrastructure law 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 infrastructure law 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, 344,438 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 21, 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 law firms by location

152 lists · largest first

Every Infrastructure law 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 infrastructure law 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 infrastructure law firms are there worldwide?

RevenueBase identified 28,341 infrastructure law 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 infrastructure law firms?

The United States leads with 4,302 companies, followed by Brazil (3,443) and India (1,575). Every infrastructure law firms list by country and city is linked on this page.

Which city has the most infrastructure law firms?

Sao Paulo leads with 791 headquartered companies, followed by Paris (441) and New Delhi (338).

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 344,438 verified decision-maker contacts tracked across these 28,341 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 21, 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.