Company lists · Data refreshed September 2026

Top 25 Employment litigation firms based in Chicago, United States

Name: Employment litigation 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 417 companies tracked

RevenueBase identified 417 company matches for employment litigation firms associated with Chicago, United States as of September 2026 and tracks 9,228 professional contacts across them, including 5,348 with verified work emails. Across the United States, New York is the largest hub for this category (754 companies); Chicago has 417.

This list covers company matches for employment litigation 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 19, 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 19, 2026 How this list was built

417Companies

9,228Contacts tracked

5,348Verified emails

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The 25 largest employment litigation firms based in Chicago, United States

Ranked by team size

Top 25 of 417 company matches for employment litigation firms based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	O'hagan Meyer	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	501-1,000	579 contacts →
	Exact match “As a national law firm defending corporations, non-profits, associations and their officers & directors in every manner of litigation, O'Hagan Meyer provides individualized…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Amundsen Davis, LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	201-500	542 contacts →
	Exact match “Amundsen Davis is a law firm comprised of over 250 attorneys headquartered in Chicago.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Litchfield Cavo LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	501-1,000	424 contacts →
	Exact match “Litchfield Cavo LLP began as a small firm of attorneys experienced in insurance and business defense matters.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Keller Postman LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	201-500	311 contacts →
	Exact match “Keller Postman LLC is a national law firm that represents a broad array of clients as plaintiffs in complex litigation at the trial and appellate levels.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Swanson, Martin & Bell, LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	201-500	254 contacts →
	Exact match “Swanson, Martin & Bell, LLP was founded in 1992 by a group of trial lawyers who left a large Chicago firm to better serve the needs of their clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Tressler LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	237 contacts →
	Exact match “Tressler LLP is a national law firm headquartered in Chicago, with ten offices located in six states - California, Illinois, Missouri, New Jersey, New York and Pennsylvania.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Clausen Miller P.C	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	201-500	232 contacts →
	Exact match “Founded over 80 years ago, Clausen Miller represents businesses, insurers and professionals through strategic, cost-effective litigation and counseling across the nation and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Much Shelist, P.C	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	203 contacts →
	Exact match “We're Much.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Cassiday Schade LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	186 contacts →
	Exact match “Cassiday Schade is a litigation law firm headquartered in Chicago, with national presence.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Goldberg Kohn LTD	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	182 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Hennessy & Roach, P.C	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	171 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Dicello Levitt LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	158 contacts →
	Exact match “DiCello Levitt LLP is one of the leading plaintiffs’ law firms in the United States.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Nicolaides Fink Thorpe Michaelides Sullivan LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	138 contacts →
	Exact match “Nicolaides Fink Thorpe Michaelides Sullivan LLP is dedicated to serving the insurance industry throughout the world in evaluating and resolving their most complex risks.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Wiedner & Mcauliffe, LTD	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	132 contacts →
	Exact match “Wiedner & McAuliffe is a Chicago-based workers’ compensation defense and civil litigation firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Bartlit Beck LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	130 contacts →
	Exact match “Delivering extraordinary results to leading companies and individuals in their most important matters.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Edelson PC	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	125 contacts →
	Exact match “EDELSON PC is a law firm concentrating on high-stake’s plaintiff’s work ranging from class and mass actions to public client investigations and prosecutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Masuda Funai	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	102 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 19, 2026 · View company records in RevenueBase
18	Horwitz, Horwitz & Associates	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	92 contacts →
	Exact match “Since 1924, our family has continued a tradition begun by Jacob W.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Ankin LAW	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	85 contacts →
	Exact match “The Chicago injury lawyers at the Ankin Law, LLC are dedicated to helping victims recover for personal injury and workers compensation accidents.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Clifford LAW Offices	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	82 contacts →
	Exact match “The lawyers at Clifford Law Offices represent years of practice in the area of personal injury law including aviation, transportation, medical malpractice and product liability…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Nyhan, Bambrick, Kinzie, & Lowry	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	80 contacts →
	Exact match “We are trusted attorneys and trusted advisors to a wide range of employers, insurance carriers and third party administrators.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Laner Muchin, LTD	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	79 contacts →
	Exact match “Laner Muchin Ltd.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Pretzel & Stouffer, Chartered	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	78 contacts →
	Exact match “Proven results.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Donohue Brown Smyth LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	76 contacts →
	Exact match “If you are searching for the highest level of skill and professional legal service, you have arrived at the right place.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Aronberg Goldgehn	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	75 contacts →
	Exact match “Aronberg Goldgehn is a premier full-service business law and litigation firm with offices in Chicago and Wheaton, Illinois.” Recorded in the RevenueBase company graph · Sep 19, 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 “employment litigation 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 417 employment litigation firms based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 5,348 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Employment litigation firms based in Chicago, United States at a glance

As of Sep 19, 2026

58.0%Verified-email coverage

22.1Average contacts per company

1-10Median size (employees)

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

241

11-50

118

51-200

201-500

501-1,000

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 417 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 “employment litigation 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 5,348 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 19, 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.

Employment litigation firms by metro in the United States

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

How many employment litigation firms are there based in Chicago, United States?

RevenueBase identified 417 company matches for employment litigation 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?

O'hagan Meyer 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 employment litigation firms?

New York leads the United States with 754 company records, followed by Los Angeles (609) and Chicago (417).

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 5,348 professional contacts with verified work emails tracked across these 417 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 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 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.