Company lists · Data refreshed September 2026

Top 25 White collar defense firms based in Chicago, United States

Name: White collar defense 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 19, 2026 134 companies tracked

RevenueBase identified 134 white collar defense firms headquartered in Chicago, United States as of September 2026 and tracks 28,512 professional contacts across them, including 17,653 with verified work emails. New York is the largest hub.

This list covers white collar defense 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 19, 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 19, 2026 86% judged on-target in blind review

134Companies

28,512Contacts tracked

17,653Verified emails

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The 25 largest white collar defense firms based in Chicago, United States

Ranked by team size

Top 25 of 134 white collar defense firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to white collar defense 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	Kirkland & Ellis	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	5,001-10,000	8,449 contacts →
	Indirect evidence “As one of the world’s leading law firms, we serve a broad range of clients with market-leading practices in private equity, M&A and other complex corporate transactions…” Source: RevenueBase Database · checked Sep 19, 2026
2	Sidley Austin LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	5,169 contacts →
	Indirect evidence “Sidley is an elite global law firm.” Source: RevenueBase Database · checked Sep 19, 2026
3	Mayer Brown	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	4,177 contacts →
	Indirect 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 19, 2026
4	Seyfarth Shaw LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,167 contacts →
	Indirect evidence “High stakes.” Source: RevenueBase Database · checked Sep 19, 2026
5	Katten Muchin Rosenman LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,495 contacts →
	Indirect 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 19, 2026
6	Jenner & Block	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	501-1,000	1,194 contacts →
	Indirect evidence “At Jenner & Block, we shape what’s next through experience, vision, and judgment.” Source: RevenueBase Database · checked Sep 19, 2026
7	Hinshaw & Culbertson LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	501-1,000	1,188 contacts →
	Indirect evidence “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Source: RevenueBase Database · checked Sep 19, 2026
8	O'hagan Meyer	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	501-1,000	579 contacts →
	Partial evidence “As a national law firm defending corporations, non-profits, associations and their officers & directors in every manner of litigation, O'Hagan Meyer provides individualized…” Source: RevenueBase Database · checked Sep 19, 2026
9	Chapman And Cutler LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	565 contacts →
	Indirect evidence “Chapman is a law firm focused on finance.” Source: RevenueBase Database · checked Sep 19, 2026
10	Amundsen Davis, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	542 contacts →
	Indirect evidence “Amundsen Davis is a law firm comprised of over 250 attorneys headquartered in Chicago.” Source: RevenueBase Database · checked Sep 19, 2026
11	Neal, Gerber & Eisenberg LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	353 contacts →
	Indirect 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 19, 2026
12	Levenfeld Pearlstein, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	254 contacts →
	Indirect 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 19, 2026
13	Bartlit Beck LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	130 contacts →
	Indirect evidence “Delivering extraordinary results to leading companies and individuals in their most important matters.” Source: RevenueBase Database · checked Sep 19, 2026
14	Golan Christie Taglia LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	61 contacts →
	Indirect evidence “Golan Christie Taglia LLP is a law firm dedicated to delivering successful results while providing our clients the highest levels of quality and personal service.” Source: RevenueBase Database · checked Sep 19, 2026
15	Patzik Frank And Samotny LTD	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	54 contacts →
	Indirect 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 19, 2026
16	Christensen HSU Sipes LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	53 contacts →
	Indirect evidence “Christensen Hsu Sipes LLP is a law firm with offices in Chicago, Northwest Indiana, Los Angeles, and Sacramento.” Source: RevenueBase Database · checked Sep 19, 2026
17	Ginsberg Jacobs LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	47 contacts →
	Indirect evidence “Ginsberg Jacobs LLC provides business-oriented legal solutions to public and private entities in the areas of real estate, finance, corporate, litigation, tax and tax credits.” Source: RevenueBase Database · checked Sep 19, 2026
18	Meckler Bulger Tilson Marick & Pearson LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	40 contacts →
	Indirect evidence “Meckler Bulger Tilson Marick & Pearson LLP (MBT) is one of the nation's leading litigation law firms - with a prominent record of important legal victories on behalf of some of…” Source: RevenueBase Database · checked Sep 19, 2026
19	Sperling & Slater, LLC	Indirect evidence	Chicago, United StatesHQ checked Sep 19, 2026	11-50	36 contacts →
	Indirect evidence “Sperling & Slater has a nationwide and international practice focusing on complex commercial and business disputes.” Source: RevenueBase Database · checked Sep 19, 2026
20	Neal & Leroy, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “Founded in 1938, Neal & Leroy, LLC is a nationally recognized, elite boutique law firm providing the highest quality legal services to clients for more than 87 years.” Source: RevenueBase Database · checked Sep 19, 2026
21	Shefsky & Froelich	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	33 contacts →
	Indirect 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 19, 2026
22	Massey & Gail LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “A high-powered law firm for savvy companies, Massey & Gail offers creative solutions in counseling, litigation and appeals.” Source: RevenueBase Database · checked Sep 19, 2026
23	Nathan & Kamionski LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “Nathan & Kamionski LLP is dedicated to client service at the highest level of professional commitment and quality.” Source: RevenueBase Database · checked Sep 19, 2026
24	Gunty & Mccarthy	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial evidence “Founded in 1991, we are an A-V rated insurance defense firm, committed to providing our clients with personalized services and performance unmatched by larger law firms.” Source: RevenueBase Database · checked Sep 19, 2026
25	Hogan Marren Babbo & Rose, LTD	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “Founded in 1993 by several attorneys previously affiliated with a large Chicago law firm, Hogan Marren, Ltd.” Source: RevenueBase Database · checked Sep 19, 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: white collar defense 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 white collar defense firms.
Partial evidence: Its own public description names part of white collar defense firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name white collar defense 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 134 white collar defense firms based in Chicago, United States

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White collar defense firms based in Chicago, United States at a glance

As of Sep 19, 2026

61.9%Verified-email coverage

212.8Average contacts per company

1-10Median size (employees)

238.8%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 134 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 white collar defense 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 “white collar defense 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 white collar defense 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 white collar defense 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, 17,653 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 19, 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.

White collar defense 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 white collar defense 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 white collar defense firms are there based in Chicago, United States?

RevenueBase identified 134 white collar defense 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?

Kirkland & Ellis, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most white collar defense firms?

New York leads with 320 headquartered companies, followed by Washington (145) and Chicago (134).

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 17,653 verified decision-maker contacts tracked across these 134 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 19, 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.