Company lists · Data verified August 2026

Top 25 Advertising consulting firms based in Chicago, United States

Name: Advertising consulting 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 446 companies tracked

There are 446 advertising consulting firms headquartered in Chicago, United States (RevenueBase, August 2026). RevenueBase tracks 4,009 professional contacts across them, including 1,024 with verified work emails and 1,777 with mobile numbers. New York is the largest hub.

This list covers advertising consulting 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.

446Companies

4,009Contacts tracked

1,024Verified emails

1,777Mobile numbers

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

Ranked by team size

Top 25 of 446 advertising consulting 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	Abelsontaylor Group	Chicago, IL	201-500	267	92
2	Highdive	Chicago, IL	51-200	137	98
3	Bbc, A B2B Creative Agency	Chicago, IL	51-200	79	53
4	Mindstream Media Group	Chicago, IL	51-200	78	61
5	AL Media Strategy	Chicago, IL	51-200	70	35
6	Envisionit	Chicago, IL	51-200	69	42
7	Eicoff	Chicago, IL	51-200	68	26
8	Otherwise Incorporated	Chicago, IL	11-50	68	3
9	Thunder Tech	Chicago, IL	51-200	50	33
10	Point B Communications	Chicago, IL	11-50	50	29
11	Phenomenon	Chicago, IL	51-200	48	4
12	Lkh&s Advertising	Chicago, IL	11-50	47	12
13	OKRP	Chicago, IL	501-1,000	45	21
14	Gatesman	Chicago, IL	51-200	43	30
15	EM Search Consulting, LLC	Chicago, IL	11-50	42	30
16	DCC Marketing	Chicago, IL	11-50	36	22
17	GRP Media	Chicago, IL	11-50	32	13
18	The Escape POD	Chicago, IL	51-200	28	3
19	Virgen	Chicago, IL	11-50	23	4
20	Blue Daring	Chicago, IL	11-50	20	9
21	Vis-A-Vis Creative	Chicago, IL	11-50	20	9
22	Coact Agency	Chicago, IL	51-200	19	14
23	Geletka	Chicago, IL	11-50	19	13
24	Real FIG Advertising Marketing	Chicago, IL	11-50	19	7
25	The Well Advertising, INC	Chicago, IL	11-50	16	8

Showing 25 of 446 advertising consulting 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 1,024 reachable decision-makers.

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

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 1060 HQs

1,777Contacts with mobile numbers

8Emails re-verified in last 30 days

Companies by employee count

1-10

329

11-50

51-200

201-500

501-1,000

Advertising consulting firms by metro in the United States

Metro	Companies
Advertising consulting firms in New York	1060
Advertising consulting firms in Los Angeles	652
Advertising consulting firms in Chicago	446
Advertising consulting firms in Atlanta	428
Advertising consulting firms in Miami	374
Advertising consulting firms in Houston	302
Advertising consulting firms in Dallas	296

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 consulting 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; 8 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 consulting firms are there based in Chicago, United States?

There are 446 advertising consulting firms headquartered in Chicago, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Abelsontaylor Group, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most advertising consulting firms?

New York leads with 1060 headquartered companies, followed by Los Angeles (652) and Chicago (446).

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 1,024 verified decision-maker contacts tracked across these 446 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.