Company lists · Data refreshed November 2026

Top 25 Supply side platform agencies based in the United States

RevenueBase identified 548 company matches for supply side platform agencies associated with the United States as of November 2026 and tracks 15,550 professional contacts across them, including 6,131 with verified work emails. New York is the largest hub.

This list covers company matches for supply side platform agencies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
548Companies
15,550Contacts tracked
6,131Verified emails
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The 25 largest supply side platform agencies based in the United States

Ranked by team size
Top 25 of 548 company matches for supply side platform agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChicago, IL, United StatesHQ recorded Nov 5, 2026501-1,000901 contacts →

Exact match

“Basis is a global provider of media automation and programmatic advertising software and services for enterprises.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000823 contacts →

Exact match

“Nexxen is the advertising platform that delivers full-funnel performance powered by unique data and media.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Nov 5, 20261,001-5,000737 contacts →

Exact match

“With $8.5B in digital ad revenue and $40B in global TV ad revenue flowing through the systems, Operative plays a crucial role in helping the world’s top media companies and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000642 contacts →

Exact match

“Innovid is the leading independent ad tech platform, empowering marketers to create, deliver, measure, and optimize ad-supported experiences that people love.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500531 contacts →

Exact match

“Raptive provides higher revenue through superior ad tech, expert strategy, and best-in-class support.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchChicago, IL, United StatesHQ recorded Nov 5, 2026201-500527 contacts →

Exact match

“Affinity is a leading global AdTech company, empowering publishers to maximize revenue and enabling advertisers to reach their ideal audiences.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchPasadena, NY, United StatesHQ recorded Nov 5, 2026201-500504 contacts →

Exact match

“OpenX is The Intelligent SSP™, simplifying advertising through quality standards, data leadership, and future-ready infrastructure with a clear promise: to make media work better…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500414 contacts →

Exact match

“Founded in WideOrbit helps media companies do more business by making it easier to sell advertising.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500401 contacts →

Exact match

“TripleLift is the Creative SSP that transforms digital advertising through creative technology and innovative ad formats.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchPrinceton, NJ, United StatesHQ recorded Nov 5, 2026201-500395 contacts →

Exact match

“At DataBeat, we simplify AdTech complexity into strategies that drive revenue.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchLos Angeles, CA, United StatesHQ recorded Nov 5, 2026201-500258 contacts →

Exact match

“AdMedia helps brands and agencies drive measurable performance by connecting them with high-intent consumers across premium publisher environments, owned-and-operated properties…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchNew York, NC, United StatesHQ recorded Nov 5, 2026201-500218 contacts →

Exact match

“Townsquare Ignite is a customer-centric, data-driven technology provider of cross-platform advertising solutions including programmatic, search, marketing and client services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000205 contacts →

Exact match

“NEW!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchNew York, United StatesHQ recorded Nov 5, 20261,001-5,000203 contacts →

Exact match

“Xandr, a part of Microsoft Advertising, powers a global marketplace for premium advertising.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchCarlsbad, CA, United StatesHQ recorded Nov 5, 2026201-500198 contacts →

Exact match

“Ezoic is an award-winning technology platform that helps digital publishers maximize ad revenue and grow their audiences through advanced, easy-to-use solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500196 contacts →

Exact match

“Mediavine powers monetization for independent publishers, delivering the technology, demand infrastructure, and revenue performance that digital businesses need to grow.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBoulder, CO, United StatesHQ recorded Nov 5, 202651-200156 contacts →

Exact match

“Sovrn is a software and data company built for the people who power the open internet.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Nov 5, 20261,001-5,000150 contacts →

Exact match

“Sizmek by Amazon provides advertisers and agencies with solutions to create, distribute, measure, and optimize their messaging.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchSan Jose, United StatesHQ recorded Nov 5, 202651-200141 contacts →

Exact match

“AI, Data & Revenue Technology for the Intelligent Enterprise C1X is a Silicon Valley-based AI, Data, and Revenue Technology company helping organizations transform data into…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchEmeryville, CA, United StatesHQ recorded Nov 5, 2026501-1,000139 contacts →

Exact match

“Exponential Interactive delivers innovative advertising experiences that transform the way brands interact with audiences across desktop and mobile.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchBoca Raton, FL, United StatesHQ recorded Nov 5, 202651-200136 contacts →

Exact match

“Playwire is a global revenue amplification company with the knowledge and technology content owners need to maximize revenue and grow their audiences.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500116 contacts →

Exact match

“DanAds is the leading global SaaS company empowering businesses of all sizes with an intuitive, scalable, and automated self-service advertising platform that uses AI and machine…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 2026201-500113 contacts →

Exact match

“ZEDO, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 202651-200112 contacts →

Exact match

“Metadata is an AI-driven B2B digital advertising platform.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchSunnyvale, CA, United StatesHQ recorded Nov 5, 202651-200101 contacts →

Exact match

“VDO.AI is a global advertising technology innovator, providing brands and web publishers with intelligent high impact solutions that win the war for consumer attention.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 548 supply side platform agencies based in the United States

See the full list, filter by size, metro and specialty, and access 6,131 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Supply side platform agencies based in the United States at a glance

As of Nov 5, 2026
39.4%Verified-email coverage
28.4Average contacts per company
11-50Median size (employees)
25.0%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
178
11-50
243
51-200
84
201-500
29
501-1,000
9
1,001-5,000
3
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 548 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “supply side platform agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,131 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Supply side platform agencies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “supply side platform agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many supply side platform agencies are there based in the United States?

RevenueBase identified 548 company matches for supply side platform agencies associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

BASIS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most supply side platform agencies?

New York leads with 137 company records, followed by San Francisco (25) and Los Angeles (20).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,131 professional contacts with verified work emails tracked across these 548 companies; direct dials are available where recorded.

How current is this list?

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