Company lists · Data refreshed September 2026

Top 25 Programmatic advertising agencies based in the United States

Name: Programmatic advertising agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 3,618 companies tracked

RevenueBase identified 3,618 programmatic advertising agencies headquartered in the United States as of September 2026 and tracks 83,519 professional contacts across them, including 33,323 with verified work emails and 29,762 with mobile numbers. New York is the largest hub.

This list covers programmatic advertising agencies 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 September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

3,618Companies

83,519Contacts tracked

33,323Verified emails

29,762Mobile numbers

Explore all 3,618 companies → Free signup · no credit card · 500 free credits

The 25 largest programmatic advertising agencies based in the United States

Ranked by team size

Top 25 of 3,618 programmatic advertising agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names programmatic advertising agencies: 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
1	The Trade DeskIndirect evidence	Ventura, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	4,307
	“It's more than just clicks.” Source: company website · checked Sep 5, 2026
2	Clear Channel OutdoorPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,462
	“Clear Channel Outdoor Holdings, Inc.(NYSE: CCO) is at the forefront of driving innovation in the out-of-home advertising industry.” Source: company website · checked Sep 5, 2026
3	Horizon MediaIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,368
	“Horizon Media is a leader in driving business-based outcomes for marketers.” Source: company website · checked Sep 5, 2026
4	TaboolaPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,979
	“Taboola empowers businesses to grow through performance advertising technology that goes beyond search and social and delivers measurable outcomes at scale.” Source: company website · checked Sep 5, 2026
5	TEADSPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,789
	“Teads Holding Co.(“Teads”)(Nasdaq: TEAD) is a leading omnichannel advertising platform focused on driving outcomes for brand and performance advertisers across screens.” Source: company website · checked Sep 5, 2026
6	PubmaticPartial evidence	Redwood City, CA, United StatesHQ checked Sep 5, 2026	501-1,000	1,297
	“PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Source: company website · checked Sep 5, 2026
7	FreewheelPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,273
	“FreeWheel’s TV and video advertising technology is built for today’s ever-evolving multiscreen ecosystem.” Source: company website · checked Sep 5, 2026
8	MediaoceanPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,050
	“Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Source: company website · checked Sep 5, 2026
9	BrainlabsIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,010
	“Brainlabs is an independent, AI-native media agency built to grow client revenue and prove the impact of every dollar spent on media.” Source: company website · checked Sep 5, 2026
10	XR Extreme ReachPartial evidence	Hudson Yards, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	940
	“XR Extreme Reach is the leading platform for managing advertising operations.” Source: company website · checked Sep 5, 2026
11	Logical PositionIndirect evidence	Lake Oswego, OR, United StatesHQ checked Sep 5, 2026	501-1,000	899
	“Logical Position (LP) is an Inc.” Source: company website · checked Sep 5, 2026
12	BASISStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	501-1,000	891
	“Basis is a global provider of media automation and programmatic advertising software and services for enterprises.” Source: company website · checked Sep 5, 2026
13	KARGOIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	843
	“Kargo creates memorable experiences for advertisers that go beyond the first impression to captivate consumer attention.” Source: company website · checked Sep 5, 2026
14	Channel FactoryIndirect evidence	City Of Industry, CA, United StatesHQ checked Sep 5, 2026	501-1,000	702
	“Channel Factory is a global technology and data platform that maximizes both performance efficiency and contextual suitability, delivering contextual performance for advertisers…” Source: company website · checked Sep 5, 2026
15	simpli.fiIndirect evidence	Fort Worth, TX, United StatesHQ checked Sep 5, 2026	501-1,000	680
	“Simpli.fi is a real-world media platform that connects digital intent with physical movement, helping brands reach audiences in the right place, at the right moment, to drive…” Source: company website · checked Sep 5, 2026
16	NexxenPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	673
	“Nexxen is the advertising platform that delivers full-funnel performance powered by unique data and media.” Source: company website · checked Sep 5, 2026
17	InnovidIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	640
	“Innovid is the leading independent ad tech platform, empowering marketers to create, deliver, measure, and optimize ad-supported experiences that people love.” Source: company website · checked Sep 5, 2026
18	MGIDPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	501-1,000	568
	“MGID is a global advertising platform helping brands and publishers succeed on the open web with performance-driven, AI-powered native solutions.” Source: company website · checked Sep 5, 2026
19	RaptiveIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	525
	“Raptive provides higher revenue through superior ad tech, expert strategy, and best-in-class support.” Source: company website · checked Sep 5, 2026
20	TombrasIndirect evidence	Knoxville, TN, United StatesHQ checked Sep 5, 2026	201-500	496
	“Tombras is a 450+ person, full-service agency with a digital mindset.” Source: company website · checked Sep 5, 2026
21	QuantcastIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	501-1,000	491
	“Quantcast is the AI-powered ad platform built for performance marketers.” Source: company website · checked Sep 5, 2026
22	LG AD SolutionsIndirect evidence	Mountain View, CA, United StatesHQ checked Sep 5, 2026	201-500	471
	“We’re a leader in helping brands find unduplicated reach across a fragmented TV landscape, and maximize return on ad spend.” Source: company website · checked Sep 5, 2026
23	Affinity GlobalIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	201-500	446
	“Affinity is a leading global AdTech company, empowering publishers to maximize revenue and enabling advertisers to reach their ideal audiences.” Source: company website · checked Sep 5, 2026
24	VERVEPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	436
	“Verve is a global leading advertising technology company, connecting advertisers seeking to buy digital ad space with publishers monetizing their content.” Source: company website · checked Sep 5, 2026
25	Viant TechnologyStrong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	201-500	418
	“Viant Technology Inc.(NASDAQ: DSP) is a leader in AI-powered programmatic advertising, dedicated to driving innovation in digital marketing.” Source: company website · checked Sep 5, 2026

Showing 25 of 3,618 programmatic advertising agencies based in the United States

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Programmatic advertising agencies based in the United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 411 HQs

29,762Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

1,875

11-50

1,192

51-200

379

201-500

103

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

31,244

31–60

1,841

61–90

90–180

180+

192

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 programmatic advertising agencies, 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: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “programmatic advertising agencies”. 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 programmatic advertising agencies, 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. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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, 33,323 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 September 5, 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.

Programmatic advertising agencies by metro

Frequently asked

How many programmatic advertising agencies are there based in the United States?

RevenueBase identified 3,618 programmatic advertising agencies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

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

Which city has the most programmatic advertising agencies?

New York leads with 411 headquartered companies, followed by Los Angeles (143) and Miami (102).

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 33,323 verified decision-maker contacts tracked across these 3,618 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.