Company lists · Data verified August 2026

Top 25 Ad tech consulting firms based in the United States

Name: Ad tech consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 4,035 companies tracked

There are 4,035 ad tech consulting firms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 57,181 professional contacts across them, including 21,594 with verified work emails and 19,453 with mobile numbers. New York is the largest hub.

This list covers ad tech consulting 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. Data current as of August 28, 2026.

4,035Companies

57,181Contacts tracked

21,594Verified emails

19,453Mobile numbers

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The 25 largest ad tech consulting firms based in the United States

Ranked by team size

Top 25 of 4,035 ad tech consulting firms based in the 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	The Trade Desk	Boston, MA	1,001-5,000	4,241	2,971
2	Taboola	New York, NY	1,001-5,000	1,978	417
3	TEADS	New York, NY	1,001-5,000	1,794	965
4	Pubmatic	Redwood City, CA	501-1,000	1,285	946
5	Logical Position	Lake Oswego, OR	501-1,000	899	674
6	BASIS	Chicago, IL	501-1,000	886	563
7	Innovid	Chicago, IL	501-1,000	640	430
8	Perion	New York, NY	501-1,000	613	355
9	Vertis Communications	Sussex, WI	10001+	605	28
10	Raptive	New York, NY	201-500	527	232
11	Tombras	Alexandria, VA	201-500	491	374
12	Viant Technology	Denver, CO	201-500	415	336
13	Triplelift	New York, NY	201-500	409	222
14	Unified	NY	201-500	402	204
15	AI Digital	Miami, FL	501-1,000	401	87
16	Wideorbit	Lynnwood, WA	201-500	390	331
17	Localedge	Buffalo, NY	501-1,000	386	43
18	Databeat	Princeton, NJ	201-500	363	125
19	Harmelin Media	Bala Cynwyd, PA	201-500	299	203
20	Marin Software	St Louis, MO	201-500	281	1
21	Fusion92	Farmington Hills, MI	201-500	241	193
22	Admedia	Los Angeles, CA	201-500	238	82
23	Adswerve, INC	Denver, CO	201-500	236	174
24	Mediavine	New York, NY	201-500	213	120
25	Townsquare Ignite	Charlotte, NC	201-500	199	110

Showing 25 of 4,035 ad tech consulting firms based in the United States

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Ad tech consulting firms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 413 HQs

19,453Contacts with mobile numbers

130Emails re-verified in last 30 days

Companies by employee count

1-10

2,487

11-50

1,129

51-200

294

201-500

501-1,000

1,001-5,000

10001+

Ad tech consulting firms by metro

Metro	Companies
Ad tech consulting firms in New York	413
Ad tech consulting firms in Los Angeles	171
Ad tech consulting firms in Miami	116
Ad tech consulting firms in San Francisco	86
Ad tech consulting firms in Chicago	85
Ad tech consulting firms in Atlanta	71
Ad tech consulting firms in Austin	69

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 “ad tech consulting firms”, with match quality audited by blind human judging, and headquartered in the 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; 130 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 ad tech consulting firms are there based in the United States?

There are 4,035 ad tech consulting firms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

The Trade Desk, headquartered in Boston, tops this list with the largest team on record.

Which city has the most ad tech consulting firms?

New York leads with 413 headquartered companies, followed by Los Angeles (171) and Miami (116).

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 21,594 verified decision-maker contacts tracked across these 4,035 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.