Company lists · Data refreshed August 2026

Top 25 Advertising recruitment firms based in the United States

Name: Advertising recruitment firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 7,829 companies tracked

There are 7,829 advertising recruitment firms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 156,379 professional contacts across them, including 34,400 with verified work emails and 40,409 with mobile numbers. New York is the largest hub.

This list covers advertising recruitment firms headquartered in the 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, how directly it supports the match, and when it was last checked. Data refreshed August 30, 2026.

7,829Companies

156,379Contacts tracked

34,400Verified emails

40,409Mobile numbers

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The 25 largest advertising recruitment firms based in the United States

Ranked by team size

Top 25 of 7,829 advertising recruitment firms based in the United States, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names advertising recruitment firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	HAYSIndirect evidence “At Hays, we believe that the right job can transform a person's life - and the right person can transform a business.” Source: company website · checked Aug 30, 2026	Chicago, IL, United States	5,001-10,000	22,596	3,718
2	Robert WaltersIndirect evidence “Robert Walters is the world’s most trusted talent solutions business.” Source: company website · checked Aug 30, 2026	Los Angeles, CA, United States	1,001-5,000	4,626	3
3	ThompsonIndirect evidence “J.” Source: company website · checked Aug 30, 2026	Chicago, IL, United States	5,001-10,000	3,576	73
4	MediacomIndirect evidence “Hello.” Source: company website · checked Aug 30, 2026	New York, NY, United States	5,001-10,000	3,247	382
5	Horizon MediaIndirect evidence “Horizon Media is a leader in driving business-based outcomes for marketers.” Source: company website · checked Aug 30, 2026	Los Angeles, CA, United States	1,001-5,000	2,354	1,588
6	Addison GroupIndirect evidence “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Source: company website · checked Aug 30, 2026	Boston, MA, United States	1,001-5,000	1,833	637
7	GPACIndirect evidence “Growing people and companies since 1990.” Source: company website · checked Aug 30, 2026	Glendale, AZ, United States	501-1,000	1,734	1,255
8	AquentIndirect evidence “We are the leading global creative staffing company, with more than 40 years of experience connecting businesses with the elite talent they need to excel.” Source: company website · checked Aug 30, 2026	Sunnyvale, CA, United States	10001+	1,397	521
9	Hakuhodo INCIndirect evidence “Founded in 1895, Hakuhodo Inc.” Source: company website · checked Aug 30, 2026	New York, NY, United States	1,001-5,000	1,149	280
10	Partners PersonnelIndirect evidence “Partners Personnel is a full-service staffing company with offices nationwide, dedicated to finding the best talent for our clients and building great careers for our associates.” Source: company website · checked Aug 30, 2026	Santa Barbara, CA, United States	1,001-5,000	919	483
11	Remx The Workforce ExpertsIndirect evidence “RemX is the professional staffing division of EmployBridge, a $3 billion staffing organization with more than 600 offices in the U.S.” Source: company website · checked Aug 30, 2026	Los Angeles, CA, United States	1,001-5,000	901	43
12	Advantage TechnicalIndirect evidence “Advantage Technical aligns people and companies to create opportunity.” Source: company website · checked Aug 30, 2026	Cincinnati, OH, United States	10001+	862	42
13	Halian Managed Services, Recruitment Agency & Contract StaffingIndirect evidence “Halian, with nearly 30 years of experience across the Middle East, Europe, and the US, is dedicated to shaping the future of Workforce Management and Managed Services.” Source: company website · checked Aug 30, 2026	Austin, TX, United States	501-1,000	760	238
14	DONERIndirect evidence “Doner unlocks all the tools of Modern marketing to build lasting connections with every day, Main Street consumers.” Source: company website · checked Aug 30, 2026	Southfield, MI, United States	501-1,000	704	271
15	BarkleyokrpIndirect evidence “BarkleyOKRP is one of the largest independent ad agencies in the U.S, matching scale with soul to help build brands like Burger King, Corona Premier, Metro by T-Mobile, Planet…” Source: company website · checked Aug 30, 2026	Denver, CO, United States	501-1,000	494	383
16	TeampeopleIndirect evidence “From the highly creative to the intrinsically technical, our passion is building successful communications teams world-wide with our flexible and scalable approach.” Source: company website · checked Aug 30, 2026	Falls Church, VA, United States	501-1,000	381	64
17	MDE GroupIndirect evidence “MDE Norge består av åtte selskaper som tilbyr konsulent, bemanning- og rekrutteringstjenester.” Source: company website · checked Aug 30, 2026	San Diego, CA, United States	501-1,000	374	57
18	Ics, A Korn Ferry CompanyIndirect evidence “ICS, a Korn Ferry Company, is one of the nation’s leading staffing and recruiting companies specializing in connecting talented people to the businesses who need them.” Source: company website · checked Aug 30, 2026	Columbus, OH, United States	1,001-5,000	350	12
19	Vastek INCIndirect evidence “Vastek Group: Your Strategic Staffing & Professional Service Partner At Vastek Group, we pride ourselves on being more than just a staffing agency.” Source: company website · checked Aug 30, 2026	Chula Vista, CA, United States	1,001-5,000	273	88
20	Axius Technologies INCIndirect evidence “Axius is doing business as MSR Technology Group.” Source: company website · checked Aug 30, 2026	Sterling, VA, United States	501-1,000	254	5
21	Bbdo NEW YorkIndirect evidence “Do Big Things” Source: company website · checked Aug 30, 2026	New York, NY, United States	501-1,000	208	74
22	GYROIndirect evidence “As the world’s first full-service global creative B2B powerhouse, our mission is to create ideas that are humanly relevant.” Source: company website · checked Aug 30, 2026	New York, NY, United States	501-1,000	200	3
23	WSIIndirect evidence “At WSI, we're passionate about delivering innovative staffing solutions that exceed expectations.” Source: company website · checked Aug 30, 2026	Sturgis, MI, United States	5,001-10,000	199	30
24	Allied OnesourceIndirect evidence “Connecting Great People with Great Opportunities If you are looking for talented people to join your team, or you are in search of the next opportunity, Allied OneSource is your…” Source: company website · checked Aug 30, 2026	St Louis, MO, United States	1,001-5,000	190	20
25	Larson MaddoxIndirect evidence “We understand that our clients are seeking much more in a talent partner than just securing headcount.” Source: company website · checked Aug 30, 2026	Tampa, FL, United States	1,001-5,000	158	101

Showing 25 of 7,829 advertising recruitment firms based in the United States

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Advertising recruitment firms based in the United States at a glance

As of Aug 30, 2026

1-10Median size (employees)

New YorkLargest hub · 583 HQs

40,409Contacts with mobile numbers

Aug 30, 2026Data refreshed

Companies by employee count

1-10

4,833

11-50

2,096

51-200

622

201-500

165

501-1,000

1,001-5,000

5,001-10,000

10001+

Advertising recruitment firms by metro

Metro	Companies
Advertising recruitment firms in New York	583
Advertising recruitment firms in Los Angeles	334
Advertising recruitment firms in Chicago	195
Advertising recruitment firms in Atlanta	161
Advertising recruitment firms in Houston	153
Advertising recruitment firms in Miami	139
Advertising recruitment firms in Dallas	138

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 advertising recruitment firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “advertising recruitment firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among advertising recruitment firms, and records with no verified work email. Companies headquartered outside United States 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 an evidence rating so you can judge each match yourself.
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, 34,400 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 August 30, 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.

Frequently asked

How many advertising recruitment firms are there based in the United States?

There are 7,829 advertising recruitment firms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most advertising recruitment firms?

New York leads with 583 headquartered companies, followed by Los Angeles (334) and Chicago (195).

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 34,400 verified decision-maker contacts tracked across these 7,829 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 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.