Company lists · Data refreshed September 2026

Top 25 Financial regulatory law firms based in Chicago, United States

Name: Financial regulatory law firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 70 companies tracked

RevenueBase identified 70 financial regulatory law firms headquartered in Chicago, United States as of September 2026 and tracks 8,695 professional contacts across them, including 4,935 with verified work emails. Across the United States, New York is the largest hub for this category (195 companies); Chicago has 70.

This list covers financial regulatory law firms headquartered in Chicago, United States, 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 28, 2026.

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 28, 2026 86% judged on-target in blind review

70Companies

8,695Contacts tracked

4,935Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest financial regulatory law firms based in Chicago, United States

Ranked by team size

Top 25 of 70 financial regulatory law firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to financial regulatory 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	Mayer Brown	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,177 contacts →
	Strong evidence “Mayer Brown is a leading international law firm, positioned to represent the world’s major corporations, funds and financial institutions in their most important and complex…” Source: RevenueBase Database · checked Sep 28, 2026
2	Katten Muchin Rosenman LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,495 contacts →
	Partial evidence “Katten is a full-service law firm with nearly 650 attorneys in locations across the United States and in London and Shanghai.” Source: RevenueBase Database · checked Sep 28, 2026
3	Hinshaw & Culbertson LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	1,188 contacts →
	Partial evidence “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
4	Chapman And Cutler LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	565 contacts →
	Partial evidence “Chapman is a law firm focused on finance.” Source: RevenueBase Database · checked Sep 28, 2026
5	Neal, Gerber & Eisenberg LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	353 contacts →
	Partial evidence “Neal Gerber Eisenberg is a Chicago-based law firm whose attorneys share a culture of teamwork and devotion to personalized client service to advance our clients’ business…” Source: RevenueBase Database · checked Sep 28, 2026
6	Levenfeld Pearlstein, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	254 contacts →
	Partial evidence “Formed in Levenfeld Pearlstein provides the sophisticated skills and resources of a big law firm with the personal attention of a small law firm.” Source: RevenueBase Database · checked Sep 28, 2026
7	Masuda Funai	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	102 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
8	Patzik Frank And Samotny LTD	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	54 contacts →
	Partial evidence “PFS is a law firm that serves a diverse group of clients in a wide variety of business and commercial matters.” Source: RevenueBase Database · checked Sep 28, 2026
9	Kluever LAW Group, LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	43 contacts →
	Strong evidence “Kluever Law Group, LLC (KLG) is a ten attorney firm boasting a strong record of success representing a core client base of banks, financial institutions, receivers, secured…” Source: RevenueBase Database · checked Sep 28, 2026
10	Global Economics Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “Data-driven, Sustainable-Results.” Source: RevenueBase Database · checked Sep 28, 2026
11	Nisen & Elliott, LLC	Indirect evidence	Chicago, United StatesHQ checked Sep 28, 2026	11-50	35 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
12	Shefsky & Froelich	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	33 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
13	Lawrence Kamin, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Partial evidence “Lawrence Kamin is a business law firm that takes a personal approach to every client engagement.” Source: RevenueBase Database · checked Sep 28, 2026
14	Hogan Marren Babbo & Rose, LTD	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “Founded in 1993 by several attorneys previously affiliated with a large Chicago law firm, Hogan Marren, Ltd.” Source: RevenueBase Database · checked Sep 28, 2026
15	Shepard Schwartz & Harris LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	26 contacts →
	Indirect evidence “As of July 2022, Shepard Schwartz & Harris LLP joined Citrin Cooperman.” Source: RevenueBase Database · checked Sep 28, 2026
16	Noonan & Lieberman	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Noonan & Lieberman is a boutique firm with decades of collective experience in representing financial institutions, real estate investors, and business clients.” Source: RevenueBase Database · checked Sep 28, 2026
17	Mccarthy Duffy LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
18	Goldstein & Mcclintock Lllp	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “Goldstein & McClintock is a restructuring, finance & corporate law firm with 11 offices across the U.S, comprised of top professionals with decades of experience at some of the…” Source: RevenueBase Database · checked Sep 28, 2026
19	Ziliak Law, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “The attorneys at Ziliak Law care about your business.” Source: RevenueBase Database · checked Sep 28, 2026
20	Koya LAW LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Strong evidence “Koya Law LLC is a boutique law firm representing trading and investment firms in the negotiation, evaluation, and documentation of complex trading and financing arrangements.” Source: RevenueBase Database · checked Sep 28, 2026
21	Meade, Roach & Annulis, LLP	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Strong evidence “Our law firm focuses almost exclusively on health care regulatory compliance.” Source: RevenueBase Database · checked Sep 28, 2026
22	Crosscheck Compliance LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	9 contacts →
	Partial evidence “CrossCheck Compliance LLC is a nationwide regulatory compliance and risk management consulting firm focused on providing regulatory compliance, internal audit, fair lending, loan…” Source: RevenueBase Database · checked Sep 28, 2026
23	Synergy LAW Group, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “Synergy Law Group, LLC concentrates in corporate and commercial law; securities and finance law; mergers and acquisitions; technology, intellectual property, licensing and…” Source: RevenueBase Database · checked Sep 28, 2026
24	Eccleston Law, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Partial evidence “The attorneys of Eccleston Law represent advisers and investors nationwide in securities and employment matters.” Source: RevenueBase Database · checked Sep 28, 2026
25	Sweeney Scharkey LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “A firm of highly-skilled, award-winning lawyers committed to providing strategic transactional advice and aggressive advocacy.” Source: RevenueBase Database · checked Sep 28, 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: financial regulatory 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 financial regulatory law firms.
Partial evidence: Its own public description names part of financial regulatory law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name financial regulatory 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 70 financial regulatory law firms based in Chicago, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 4,935 reachable decision-makers.

Free signup · no credit card

View the full list →

Financial regulatory law firms based in Chicago, United States at a glance

As of Sep 28, 2026

56.8%Verified-email coverage

124.2Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 70 companies.

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 financial regulatory 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.
What qualifies: Companies headquartered in Chicago, United States whose own description of what they do matches “financial regulatory 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 financial regulatory 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 financial regulatory law firms, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
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, 4,935 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 28, 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.

Financial regulatory law firms by metro in the United States

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 financial regulatory 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 financial regulatory law firms are there based in Chicago, United States?

RevenueBase identified 70 financial regulatory law firms headquartered in Chicago, United States 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?

Mayer Brown, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most financial regulatory law firms?

New York leads the United States with 195 headquartered companies, followed by Washington (98) and Chicago (70).

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 4,935 verified decision-maker contacts tracked across these 70 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 70 financial regulatory law firms based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

Financial regulatory law firms by geography

Browse the directory

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.