Company lists · Data verified August 2026

Top 25 Digital advertising platforms based in the United States

Name: Digital advertising platforms 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 3,106 companies tracked

There are 3,106 digital advertising platforms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 73,452 professional contacts across them, including 28,522 with verified work emails and 24,711 with mobile numbers. New York is the largest hub.

This list covers digital advertising platforms 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.

3,106Companies

73,452Contacts tracked

28,522Verified emails

24,711Mobile numbers

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The 25 largest digital advertising platforms based in the United States

Ranked by team size

Top 25 of 3,106 digital advertising platforms 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	HIBU	Cedar Rapids, IA	1,001-5,000	4,480	823
2	The Trade Desk	Boston, MA	1,001-5,000	4,241	2,971
3	Clear Channel Outdoor	New York, NY	1,001-5,000	2,453	1
4	Taboola	New York, NY	1,001-5,000	1,978	417
5	TEADS	New York, NY	1,001-5,000	1,794	965
6	Constant Contact	Gainesville, FL	1,001-5,000	1,636	647
7	Localiq	New York, NY	1,001-5,000	1,541	581
8	Inmobi Advertising	New York	1,001-5,000	1,320	488
9	Pubmatic	Redwood City, CA	501-1,000	1,285	946
10	CJ	Santa Barbara, CA	501-1,000	1,209	456
11	Centerfield	Los Angeles, CA	1,001-5,000	1,057	349
12	Quinstreet	Foster City, CA	501-1,000	1,025	690
13	Samsung ADS	New York, NY	501-1,000	988	277
14	Ibotta	Denver, CO	501-1,000	974	573
15	Logical Position	Lake Oswego, OR	501-1,000	899	674
16	BASIS	Chicago, IL	501-1,000	886	563
17	DT	Arlington, VA	501-1,000	751	455
18	simpli.fi	Fort Worth, TX	501-1,000	677	470
19	Nexxen	New York, NY	501-1,000	666	514
20	Innovid	Chicago, IL	501-1,000	640	430
21	Perion	New York, NY	501-1,000	613	355
22	MGID	Los Angeles, CA	501-1,000	571	225
23	SKAI	San Francisco, CA	501-1,000	565	407
24	Quantcast	Seattle, WA	501-1,000	496	282
25	Localedge	Buffalo, NY	501-1,000	386	43

Showing 25 of 3,106 digital advertising platforms based in the United States

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Digital advertising platforms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 369 HQs

24,711Contacts with mobile numbers

53Emails re-verified in last 30 days

Companies by employee count

1-10

1,615

11-50

1,005

51-200

316

201-500

501-1,000

1,001-5,000

10001+

Digital advertising platforms by metro

Metro	Companies
Digital advertising platforms in New York	369
Digital advertising platforms in Los Angeles	130
Digital advertising platforms in San Francisco	129
Digital advertising platforms in Miami	94
Digital advertising platforms in Chicago	64
Digital advertising platforms in Austin	58
Digital advertising platforms in Sheridan	50

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 “digital advertising platforms”, 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; 53 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 digital advertising platforms are there based in the United States?

There are 3,106 digital advertising platforms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

HIBU, headquartered in Cedar Rapids, tops this list with the largest team on record.

Which city has the most digital advertising platforms?

New York leads with 369 headquartered companies, followed by Los Angeles (130) and San Francisco (129).

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 28,522 verified decision-maker contacts tracked across these 3,106 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.