Company lists · Data refreshed September 2026

Top 25 Infrastructure investment law firms based in Chicago, United States

RevenueBase identified 44 company matches for infrastructure investment law firms associated with Chicago, United States as of September 2026 and tracks 4,387 professional contacts across them, including 2,539 with verified work emails. Across the United States, New York is the largest hub for this category (118 companies); Chicago has 44.

This list covers company matches for infrastructure investment law firms associated with Chicago, 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
44Companies
4,387Contacts tracked
2,539Verified emails
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The 25 largest infrastructure investment law firms based in Chicago, United States

Ranked by team size
Top 25 of 44 company matches for infrastructure investment law firms based in Chicago, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261,001-5,0002,167 contacts →

Exact match

“High stakes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchChicago, IL, United StatesHQ recorded Sep 28, 2026501-1,0001,188 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
3Exact matchChicago, IL, United StatesHQ recorded Sep 28, 2026201-500565 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
4Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202651-200102 contacts →

Exact match

“Since its founding in 1929, Masuda Funai has focused its practice on successfully representing international and domestic companies entering, operating and expanding in the United…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202651-20035 contacts →

Exact match

“KMA Zuckert LLP brings together two firms with extensive experience in solving problems for clients across a broad range of disciplines: Kaplan, Massamillo & Andrews, with its…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202611-5035 contacts →

Exact match

“Fletcher & Sippel LLC is a 25+ attorney, 3 location law firm with home offices located in Chicago, Illinois, the rail hub of America.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202651-20033 contacts →

Exact match

“Shefsky & Froelich Ltd, a Chicago-based full-service law firm, was founded in 1970 by a small group of highly motivated attorneys with extensive experience in complex commercial…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202611-5030 contacts →

Exact match

“Mohan Groble Scolaro is nationally recognized for a broad range of sophisticated legal services that we provide to both publicly traded and privately held clients in all stages of…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202611-5028 contacts →

Exact match

“Founded in 1993 by several attorneys previously affiliated with a large Chicago law firm, Hogan Marren, Ltd.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-1026 contacts →

Exact match

“As of July 2022, Shepard Schwartz & Harris LLP joined Citrin Cooperman.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“Bridging the Gap between Public & Private Sectors In representing public and private sector clients, our attorneys provide unique legal insights and understandings that result in…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“As one of the largest boutique construction law firms in Chicago, Laurie & Brennan has developed an unrivaled bench of industry experience and know-how to represent clients in…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202611-5017 contacts →

Exact match

“McCarthy Duffy LLP is a business-focused law firm that has been supporting clients in the Midwest and around the world for over 100 years.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202611-5013 contacts →

Exact match

“RK is a minority-certified firm that specializes in the dynamic intersection between business and government.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“At Miller Berger LLC, our mission is to provide exceptional legal services and strategic guidance to businesses, construction companies, and individuals in the complex landscape…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202611-5010 contacts →

Exact match

“Leinenweber Daffada & Sansonetti LLC is a full-service law firm that represents public and private sector clients.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-107 contacts →

Exact match

“For over 22 years, Jaffe & Berlin has been representing clients big and small.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-105 contacts →

Exact match

“The economy is down and competition is up.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Jeremy S.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-103 contacts →

Exact match

“Responsive.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-103 contacts →

Exact match

“Ullico Infrastructure Partners, LLC is a partnership of infrastructure investment professionals that, through the Ullico Infrastructure Fund, invest in and provide institutional…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-103 contacts →

Exact match

“RKF Global PLLC is a boutique law rm headquartered in Chicago and Los Angeles, focused primarily in the following practice areas: Complex Commercial Litigation, Real Estate and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-103 contacts →

Exact match

“Our attorneys quickly attack our clients’ issues including structuring deals, rendering advice, negotiating transactions, providing litigation, criminal defense, civil plaintiff…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-102 contacts →

Exact match

“K + P Advisory, LLC is a certified Women's Business Enterprise (WBE), Disadvantaged Business Enterprise (DBE), and Airport Concession Disadvantaged Business Enterprise (ACDBE)…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261-102 contacts →

Exact match

“Caminer Law, LLC is a WBE, BEP, AC/DBE, and WBENC certified law firm started by @Irene Schild Caminer.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 44 infrastructure investment law firms based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 2,539 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure investment law firms based in Chicago, United States at a glance

As of Sep 28, 2026
57.9%Verified-email coverage
99.7Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
11
51-200
3
201-500
1
501-1,000
1
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 44 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 Chicago, 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 2,539 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.

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 Chicago, United States?

RevenueBase identified 44 company matches for infrastructure investment law firms associated with Chicago, 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?

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

Which city in the United States has the most infrastructure investment law firms?

New York leads the United States with 118 company records, followed by Washington (90) and Houston (64). Chicago has 44.

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 2,539 professional contacts with verified work emails tracked across these 44 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.