Company lists · Data refreshed September 2026

Top 25 Infrastructure investment law firms based in the United States

Name: Infrastructure investment law firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,455 companies tracked

RevenueBase identified 1,455 company matches for infrastructure investment law firms associated with the United States as of September 2026 and tracks 127,815 professional contacts across them, including 59,153 with verified work emails. New York is the largest hub.

This list covers company matches for infrastructure investment law firms associated with the United States, 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 28, 2026.

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 28, 2026 How this list was built

1,455Companies

127,815Contacts tracked

59,153Verified emails

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The 25 largest infrastructure investment law firms based in the United States

Ranked by team size

Top 25 of 1,455 company matches for infrastructure investment law firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 28, 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 28, 2026 · View company records in RevenueBase
2	Arnold & Porter	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,333 contacts →
	Exact match “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Seyfarth Shaw LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,167 contacts →
	Exact match “High stakes.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Dechert LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,041 contacts →
	Exact match “Dechert is the law firm that helps business leaders lead.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Taft Stettinius & Hollister LLP	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,980 contacts →
	Exact match “At Taft, we work as one team, driven and committed to helping you succeed.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Pillsbury Winthrop Shaw Pittman LLP	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,949 contacts →
	Exact match “Pillsbury is one of the world’s foremost law firms, operating at the intersection of technology innovation, capital and government.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Faegre Drinker	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,848 contacts →
	Exact match “Faegre Drinker is a firm designed for clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Venable LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,790 contacts →
	Exact match “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Ballard Spahr LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,682 contacts →
	Exact match “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Buchanan Ingersoll & Rooney PC	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 28, 2026	501-1,000	1,197 contacts →
	Exact match “Buchanan Ingersoll & Rooney is a national law firm with a proven reputation for providing progressive, industry-leading legal, business, regulatory and government relations advice…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Hinshaw & Culbertson LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	1,188 contacts →
	Exact match “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Manatt, Phelps & Phillips, LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 28, 2026	501-1,000	1,085 contacts →
	Exact match “Forget everything you thought you knew about professional services firms.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Bracewell LLP	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	933 contacts →
	Exact match “Bracewell LLP is a leading law and government relations firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Brownstein Hyatt Farber Schreck	Exact match	Denver, CO, United StatesHQ recorded Sep 28, 2026	501-1,000	902 contacts →
	Exact match “For decades, we’ve positioned ourselves at the intersection of law, business and policy to bring a multidisciplinary strategy to every issue.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Stoel Rives LLP	Exact match	Portland, OR, United StatesHQ recorded Sep 28, 2026	501-1,000	864 contacts →
	Exact match “Stoel Rives is a leading U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Fredrikson & Byron, P.A	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 28, 2026	501-1,000	834 contacts →
	Exact match “At Fredrikson, we’ve built a reputation as the firm “where law and business meet” by bringing business acumen and entrepreneurial thinking to our work with clients, and by…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	FMI	Exact match	Raleigh, NC, United StatesHQ recorded Sep 28, 2026	n/a	818 contacts →
	Exact match “For more than 70 years, FMI has been the leading management consulting and investment banking* firm dedicated exclusively to engineering and construction, infrastructure, and the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Carlton Fields	Exact match	Tampa, FL, United StatesHQ recorded Sep 28, 2026	501-1,000	790 contacts →
	Exact match “We view the world from our clients’ perspectives, helping them to lead and innovate across industries and around the globe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Winstead PC	Exact match	Austin, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	788 contacts →
	Exact match “Winstead is a leading Texas-based law firm with national practices serving clients across the country.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Wade Trim	Exact match	Detroit, MI, United StatesHQ recorded Sep 28, 2026	501-1,000	758 contacts →
	Exact match “At Wade Trim, we are committed to maximizing the value of your infrastructure investment.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Kelley Drye & Warren LLP	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	690 contacts →
	Exact match “Kelley Drye is an AmLaw 200 law firm of more than 350 lawyers and other professionals practicing in New York, NY; Washington, D.C; Chicago, IL; Houston, TX, Los Angeles, CA; San…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Parker POE Adams & Bernstein LLP	Exact match	Charlotte, NC, United StatesHQ recorded Sep 28, 2026	501-1,000	584 contacts →
	Exact match “Businesses and local governments turn to Parker Poe to structure transactions, navigate regulations, and resolve disputes.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Wiley Rein LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	501-1,000	576 contacts →
	Exact match “Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Chapman And Cutler LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	565 contacts →
	Exact match “Chapman is a law firm focused on finance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	H&h	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	530 contacts →
	Exact match “With more than 139 years of experience, H&H is a trusted, full-service infrastructure engineering firm delivering complex, forward-looking solutions that advance our clients’…” Recorded in the RevenueBase company graph · Sep 28, 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 “infrastructure investment law 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 1,455 infrastructure investment law firms based in the United States

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Infrastructure investment law firms based in the United States at a glance

As of Sep 28, 2026

46.3%Verified-email coverage

87.8Average contacts per company

1-10Median size (employees)

8.1%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

852

11-50

426

51-200

113

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,455 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “infrastructure investment law 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 59,153 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 28, 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.

Infrastructure investment law firms by metro

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 “infrastructure investment law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure investment law firms are there based in the United States?

RevenueBase identified 1,455 company matches for infrastructure investment law firms associated with the United States 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 city has the most infrastructure investment law firms?

New York leads with 118 company records, followed by Washington (90) and Houston (64).

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 59,153 professional contacts with verified work emails tracked across these 1,455 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 28, 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.