Company lists · Data refreshed September 2026
Top 25 Employment litigation firms based in Chicago, United States
RevenueBase identified 417 employment litigation firms headquartered in Chicago, United States as of September 2026 and tracks 9,228 professional contacts across them, including 5,348 with verified work emails. New York is the largest hub.
This list covers employment litigation 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.
The 25 largest employment litigation firms based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 542 contacts → | ||||
Indirect evidence “Amundsen Davis is a law firm comprised of over 250 attorneys headquartered in Chicago.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 424 contacts → | ||||
Indirect evidence “Litchfield Cavo LLP began as a small firm of attorneys experienced in insurance and business defense matters.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 311 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 254 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 237 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 232 contacts → | ||||
Partial evidence “Founded over 80 years ago, Clausen Miller represents businesses, insurers and professionals through strategic, cost-effective litigation and counseling across the nation and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 203 contacts → | ||||
Indirect evidence “We're Much.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 186 contacts → | ||||
Partial evidence “Cassiday Schade is a litigation law firm headquartered in Chicago, with national presence.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 182 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 171 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 158 contacts → | ||||
Indirect evidence “DiCello Levitt LLP is one of the leading plaintiffs’ law firms in the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 138 contacts → | ||||
Indirect evidence “Nicolaides Fink Thorpe Michaelides Sullivan LLP is dedicated to serving the insurance industry throughout the world in evaluating and resolving their most complex risks.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 132 contacts → | ||||
Partial evidence “Wiedner & McAuliffe is a Chicago-based workers’ compensation defense and civil litigation firm.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 130 contacts → | ||||
Indirect evidence “Delivering extraordinary results to leading companies and individuals in their most important matters.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 125 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 92 contacts → | ||||
Indirect evidence “Since 1924, our family has continued a tradition begun by Jacob W.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 85 contacts → | ||||
Indirect evidence “The Chicago injury lawyers at the Ankin Law, LLC are dedicated to helping victims recover for personal injury and workers compensation accidents.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 82 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 80 contacts → | ||||
Indirect evidence “We are trusted attorneys and trusted advisors to a wide range of employers, insurance carriers and third party administrators.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 79 contacts → | ||||
Indirect evidence “Laner Muchin Ltd.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 78 contacts → | ||||
Indirect evidence “Proven results.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 76 contacts → | ||||
Indirect evidence “If you are searching for the highest level of skill and professional legal service, you have arrived at the right place.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 75 contacts → | ||||
Partial evidence “Aronberg Goldgehn is a premier full-service business law and litigation firm with offices in Chicago and Wheaton, Illinois.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: employment litigation 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 employment litigation firms.
- Partial evidence
- Its own public description names part of employment litigation firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name employment litigation 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 417 employment litigation 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 5,348 reachable decision-makers.
Free signup · no credit card
Employment litigation firms based in Chicago, United States at a glance
As of Sep 19, 2026Companies by employee count
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
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among employment litigation 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 “employment litigation 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 employment litigation 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 employment litigation 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, 5,348 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.
Employment litigation firms by metro in the United States
- Employment litigation firms in New York754
- Employment litigation firms in Los Angeles609
- Employment litigation firms in Chicago417
- Employment litigation firms in Houston388
- Employment litigation firms in Atlanta289
- Employment litigation firms in San Diego275
- Employment litigation firms in Dallas251
- Employment litigation firms in Miami209
- Employment litigation firms in San Francisco203
- Employment litigation firms in Boston171
- Employment litigation firms in Philadelphia165
- Employment litigation firms in Washington163
- Employment litigation firms in Tampa161
- Employment litigation firms in Irvine156
- Employment litigation firms in Denver145
- Employment litigation firms in Austin122
- Employment litigation firms in Seattle116
- Employment litigation firms in Phoenix115
- Employment litigation firms in Fort Lauderdale111
- Employment litigation firms in Las Vegas108
- Employment litigation firms in Minneapolis106
- Employment litigation firms in New Orleans98
- Employment litigation firms in Orlando98
- Employment litigation firms in Birmingham96
- Employment litigation firms in Portland94
- Employment litigation firms in Beverly Hills93
- Employment litigation firms in Pasadena90
- Employment litigation firms in Sacramento86
- Employment litigation firms in Coral Gables82
- Employment litigation firms in Columbia80
- Employment litigation firms in Kansas City75
- Employment litigation firms in San Antonio75
- Employment litigation firms in Cleveland72
- Employment litigation firms in Pittsburgh72
- Employment litigation firms in Columbus68
- Employment litigation firms in Charleston66
- Employment litigation firms in Oakland64
- Employment litigation firms in Raleigh64
- Employment litigation firms in Glendale63
- Employment litigation firms in Indianapolis63
- Employment litigation firms in Charlotte62
- Employment litigation firms in Newport Beach60
- Employment litigation firms in Jacksonville58
- Employment litigation firms in San Jose58
- Employment litigation firms in West Palm Beach58
- Employment litigation firms in Boca Raton57
- Employment litigation firms in Springfield52
- Employment litigation firms in St. Louis52
- Employment litigation firms in Nashville51
- Employment litigation firms in Fort Worth47
- Employment litigation firms in Baltimore46
- Employment litigation firms in Long Beach46
- Employment litigation firms in Oklahoma City46
- Employment litigation firms in Richmond46
- Employment litigation firms in Walnut Creek46
- Employment litigation firms in Buffalo44
- Employment litigation firms in Wilmington44
- Employment litigation firms in Encino41
- Employment litigation firms in Albuquerque40
- Employment litigation firms in Louisville40
- Employment litigation firms in Garden City37
- Employment litigation firms in Jackson37
- Employment litigation firms in Milwaukee37
- Employment litigation firms in White Plains37
- Employment litigation firms in Cincinnati36
- Employment litigation firms in Salt Lake City34
- Employment litigation firms in Tulsa34
- Employment litigation firms in Scottsdale33
- Employment litigation firms in St Louis33
- Employment litigation firms in Tallahassee33
- Employment litigation firms in Baton Rouge32
- Employment litigation firms in Little Rock32
- Employment litigation firms in Troy32
- Employment litigation firms in Costa Mesa31
- Employment litigation firms in Greenville31
- Employment litigation firms in Woodland Hills31
- Employment litigation firms in Rochester30
- Employment litigation firms in Santa Monica30
- Employment litigation firms in Sherman Oaks29
- Employment litigation firms in Madison28
- Employment litigation firms in Omaha28
- Employment litigation firms in Rockville28
- Employment litigation firms in Santa Ana28
- Employment litigation firms in Albany26
- Employment litigation firms in Decatur26
- Employment litigation firms in El Segundo26
- Employment litigation firms in Lexington26
- Employment litigation firms in Tustin26
- Employment litigation firms in Boise25
- Employment litigation firms in Burbank25
- Employment litigation firms in Detroit25
- Employment litigation firms in Fairfax25
- Employment litigation firms in Hartford25
- Employment litigation firms in Hollywood25
- Employment litigation firms in Metairie25
- Employment litigation firms in Southfield25
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 employment litigation 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 employment litigation firms are there based in Chicago, United States?
RevenueBase identified 417 employment litigation 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?
O'hagan Meyer, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most employment litigation firms?
New York leads with 754 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 5,348 verified decision-maker contacts tracked across these 417 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.
Ready to reach these companies? Verified emails and direct dials for all 417 employment litigation firms based in Chicago, United States. Start with a free account, no credit card.
Download this list →Related lists
Employment litigation firms by geography
- Employment litigation firms based in Belo Horizonte, Brazil
- Employment litigation firms based in Brasilia, Brazil
- Employment litigation firms based in Campinas, Brazil
- Employment litigation firms based in Curitiba, Brazil
- Employment litigation firms based in Porto Alegre, Brazil
- Employment litigation firms based in Recife, Brazil
- Employment litigation firms based in Rio De Janeiro, Brazil
- Employment litigation firms based in Salvador, Brazil
- Employment litigation firms based in Sao Paulo, Brazil
- Employment litigation firms based in Calgary, Canada
- Employment litigation firms based in Edmonton, Canada
- Employment litigation firms based in Mississauga, Canada
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Employment litigation firms based in Belo Horizonte, Brazil
- Employment litigation firms based in Brasilia, Brazil
- Employment litigation firms based in Campinas, Brazil
- Employment litigation firms based in Curitiba, Brazil
- Employment litigation firms based in Porto Alegre, Brazil
- Employment litigation firms based in Recife, Brazil