Company lists · Data refreshed October 2026

Top 25 Defense litigation networks based in Chicago, United States

Name: Defense litigation networks based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 180 companies tracked

RevenueBase identified 180 company matches for defense litigation networks associated with Chicago, United States as of October 2026 and tracks 3,408 professional contacts across them, including 1,630 with verified work emails. Across the United States, New York is the largest hub for this category (269 companies); Chicago has 180.

This list covers company matches for defense litigation networks 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 October 11, 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 Oct 11, 2026 How this list was built

180Companies

3,408Contacts tracked

1,630Verified emails

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The 25 largest defense litigation networks based in Chicago, United States

Ranked by team size

Top 25 of 180 company matches for defense litigation networks based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 Oct 11, 2026	501-1,000	635 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 · Oct 11, 2026 · View company records in RevenueBase
2	Swanson, Martin & Bell, LLP	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	201-500	260 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 · Oct 11, 2026 · View company records in RevenueBase
3	Cassiday Schade LLP	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 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 · Oct 11, 2026 · View company records in RevenueBase
4	Wiedner & Mcauliffe, LTD	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	133 contacts →
	Exact match “Wiedner & McAuliffe is a Chicago-based workers’ compensation defense and civil litigation firm.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Pretzel & Stouffer, Chartered	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	83 contacts →
	Exact match “Proven results.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	Donohue Brown Smyth LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	79 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 · Oct 11, 2026 · View company records in RevenueBase
7	Robbins Schwartz	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	70 contacts →
	Exact match “We are a team of problem solvers.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	Downey & Lenkov LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	48 contacts →
	Exact match “Downey & Lenkov LLC was founded in 2001 by professionals from large Chicago law firms who are committed to providing world-class service but prefer a mid-sized firm setting.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9	Ifmk Law, LTD	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	48 contacts →
	Exact match “A successful team of experienced attorneys who are well-recognized in public entity defense practice and employment law services for public and private sector clients throughout…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Langhenry, Gillen, Lundquist & Johnson, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	44 contacts →
	Exact match “As a firm of trial attorneys, we understand the cost and risk associated with litigation.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	Airdo Werwas, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	44 contacts →
	Exact match “Airdo Werwas, LLC, is a boutique trial law firm that provides a full range of legal services and solutions to achieve the results its clients need.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12	Meckler Bulger Tilson Marick & Pearson LLP	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	42 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	Nielsen, Zehe & Antas P.C	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	41 contacts →
	Exact match “NZA is a partnership of acclaimed trial and litigation lawyers, fearless and accomplished in their representation of their clients' interests anywhere in the U.S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Chilton Yambert & Porter LLP	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	41 contacts →
	Exact match “Chilton Yambert & Porter LLP, established in January 1998, is a respected civil litigation firm with offices located in Illinois and Wisconsin.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Tabet Divito & Rothstein LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	39 contacts →
	Exact match “We are a trial and appellate litigation firm with a 20-year track record of exceptional outcomes for Fortune 500 companies, middle-market leaders, and entrepreneurs.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	Tribler Orpett & Meyer, P.C	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	36 contacts →
	Exact match “We are a client–focused civil litigation firm serving the insurance and business communities throughout the United States.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	CTM Legal Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	35 contacts →
	Exact match “CTM Legal Group offers a full service legal practice in the heart of Chicago.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	Neal & Leroy, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	34 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	Schuyler, Roche & Crisham, P.C	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	33 contacts →
	Exact match “Experienced Advocates and Counselors Fighting For Your Rights Inside and Outside the Courtroom Schuyler, Roche & Crisham helps clients in Chicago and around the globe achieve…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Nathan & Kamionski LLP	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	32 contacts →
	Exact match “Nathan & Kamionski LLP is dedicated to client service at the highest level of professional commitment and quality.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	Williams & John	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	31 contacts →
	Exact match “Dedication, passion and the courage to try lawsuits are the three qualities that distinguish Williams & John from other law firms.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	Keefe, Campbell, Biery & Associates, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	28 contacts →
	Exact match “Keefe, Campbell, Biery & Associates presents a clear choice to clients that need defense lawyers.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	Massey & Gail LLP	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	27 contacts →
	Exact match “A high-powered law firm for savvy companies, Massey & Gail offers creative solutions in counseling, litigation and appeals.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	Barker, Castro & Steinback, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	26 contacts →
	Exact match “Barker, Castro & Steinback, LLC is a litigation firm with experienced attorneys who understand that the law is a service profession.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	Stamos & Trucco LLP	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	25 contacts →
	Exact match “Stamos & Trucco LLP was founded in 1990 by James J.” Recorded in the RevenueBase company graph · Oct 11, 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 “defense litigation networks”. 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 180 defense litigation networks based in Chicago, United States

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Defense litigation networks based in Chicago, United States at a glance

As of Oct 11, 2026

47.8%Verified-email coverage

18.9Average contacts per company

1-10Median size (employees)

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

110

11-50

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 180 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 “defense litigation networks” 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 1,630 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 October 11, 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.

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

How many defense litigation networks are there based in Chicago, United States?

RevenueBase identified 180 company matches for defense litigation networks associated with Chicago, United States as of October 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 defense litigation networks?

New York leads the United States with 269 company records, followed by Houston (194) and Los Angeles (188). Chicago has 180.

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 1,630 professional contacts with verified work emails tracked across these 180 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 October 11, 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.