Company lists · Data verified August 2026

Top 25 Advertising law firms based in Chicago, United States

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 77 companies tracked

There are 77 advertising law firms headquartered in Chicago, United States (RevenueBase, August 2026). RevenueBase tracks 3,352 professional contacts across them, including 1,866 with verified work emails and 1,807 with mobile numbers. New York is the largest hub.

This list covers advertising 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. Data current as of August 28, 2026.

77Companies

3,352Contacts tracked

1,866Verified emails

1,807Mobile numbers

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The 25 largest advertising law firms based in Chicago, United States

Ranked by team size

Top 25 of 77 advertising law firms based in Chicago, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Crowell & Moring	Chicago, IL	1,001-5,000	1,626	1,053
2	Howard & Howard Attorneys Pllc	Chicago, IL	201-500	307	158
3	Banner Witcoff	Chicago, IL	201-500	286	170
4	Mcandrews, Held & Malloy, LTD	Chicago	51-200	166	92
5	Mbhb Mcdonnell Boehnen Hulbert & Berghoff LLP	Chicago, IL	51-200	140	100
6	Masuda Funai	Chicago, IL	51-200	106	53
7	Parker Ibrahim & Berg LLP	Chicago, IL	51-200	46	3
8	Pattishall, Mcauliffe, Newbury, Hilliard & Geraldson LLP	Chicago, IL	51-200	45	29
9	Dunlap Codding PC	Chicago, IL	11-50	29	22
10	Shepard Schwartz & Harris LLP	Chicago, IL	1-10	29	10
11	Wood Phillips	Chicago, IL	11-50	27	15
12	Saper LAW Offices, LLC	Chicago, IL	1-10	27	2
13	Lempia Summerfield Katz LLC	Chicago, IL	11-50	25	21
14	LEE Sullivan Shea & Smith LLP	Chicago, IL	11-50	19	16
15	Cook Alex LTD	Chicago, IL	11-50	19	14
16	Market Jd, INC	Chicago, IL	11-50	19	11
17	Edelman, Combs, Latturner & Goodwin, LLC	Chicago, IL	11-50	18	15
18	Flener IP & Business LAW	Chicago, IL	11-50	17	7
19	Scandaglia LAW LLP	Chicago, IL	11-50	11	4
20	Klintworth & Rozenblat LLP	Chicago, IL	11-50	10	8
21	Kucala Burgett LAW LLC	Chicago	1-10	9	5
22	Jaffe & Berlin, L.L.C	Chicago, IL	1-10	8	5
23	Davis & Gelshenen, LLP	Chicago, IL	1-10	8	2
24	Vitale, Vickrey, Niro, Solon & Gasey LLP	Chicago, IL	11-50	7	6
25	Green, Griffith & Associates LLP	Chicago, IL	1-10	5	5

Showing 25 of 77 advertising law firms based in Chicago, United States

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Advertising law firms based in Chicago, United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 183 HQs

1,807Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Advertising law firms by metro in the United States

Metro	Companies
Advertising law firms in New York	183
Advertising law firms in Washington	91
Advertising law firms in Los Angeles	80
Advertising law firms in Chicago	77
Advertising law firms in Houston	66
Advertising law firms in Dallas	50
Advertising law firms in Atlanta	43
Advertising law firms in San Francisco	38

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “advertising law firms”, with match quality audited by blind human judging, and headquartered in Chicago, United States.
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: Contact records re-verify on a rolling cadence; 5 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many advertising law firms are there based in Chicago, United States?

There are 77 advertising law firms headquartered in Chicago, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Crowell & Moring, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most advertising law firms?

New York leads with 183 headquartered companies, followed by Washington (91) and Los Angeles (80).

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 1,866 verified decision-maker contacts tracked across these 77 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.