Company lists · Data refreshed September 2026

Top 25 Adtech consulting services based in the United States

RevenueBase identified 2,519 adtech consulting services headquartered in the United States as of September 2026 and tracks 33,199 professional contacts across them, including 13,521 with verified work emails. New York is the largest hub.

This list covers adtech consulting services 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
2,519Companies
33,199Contacts tracked
13,521Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest adtech consulting services based in the United States

Ranked by team size
Top 25 of 2,519 adtech consulting services based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to adtech consulting services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMountain View, CA, United StatesHQ checked Sep 21, 20261,001-5,0001,506 contacts →

Indirect evidence

“Grazitti Interactive is a digital innovation leader with offices in India, USA, Australia, and Singapore.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceRedwood City, CA, United StatesHQ checked Sep 21, 2026501-1,0001,297 contacts →

Indirect evidence

“PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261,001-5,0001,050 contacts →

Indirect evidence

“Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceLake Oswego, OR, United StatesHQ checked Sep 21, 2026501-1,000899 contacts →

Indirect evidence

“Logical Position (LP) is an Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 2026501-1,000891 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026501-1,000640 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceSussex, WI, United StatesHQ checked Sep 21, 202610001+605 contacts →

Indirect evidence

“Vertis Communications was acquired by Quad/Graphics in January 2013.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceKnoxville, TN, United StatesHQ checked Sep 21, 2026201-500496 contacts →

Indirect evidence

“Tombras is a 450+ person, full-service agency with a digital mindset.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceChicago, IL, United StatesHQ checked Sep 21, 2026201-500446 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026501-1,000436 contacts →

Indirect evidence

“Verve is a global leading advertising technology company, connecting advertisers seeking to buy digital ad space with publishers monetizing their content.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceIrvine, CA, United StatesHQ checked Sep 21, 2026201-500418 contacts →

Indirect evidence

“Viant Technology Inc.(NASDAQ: DSP) is a leader in AI-powered programmatic advertising, dedicated to driving innovation in digital marketing.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceNY, United StatesHQ checked Sep 21, 2026201-500399 contacts →

Indirect evidence

“A best in class team of digital experts leveraging purpose built technology to deliver operational excellence and insights across paid social, programmatic, OTT and digital audio.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026201-500392 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidencePrinceton, NJ, United StatesHQ checked Sep 21, 2026201-500357 contacts →

Partial evidence

“At DataBeat, we redefine what's possible in AdTech, simplifying AdTech complexities into actionable strategies that drive revenue.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 21, 202651-200290 contacts →

Indirect evidence

“Merkle | DWA is a global media and marketing agency for technology companies.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026201-500251 contacts →

Indirect evidence

“Welcome to Accel-Digital, a leading brand in the Marketing and Advertising industry that offers top-notch assistance with ad operations support services.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 2026201-500244 contacts →

Indirect evidence

“Fusion92 is the independent growth partner for highly regulated, multi-location brands.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceDenver, CO, United StatesHQ checked Sep 21, 2026201-500239 contacts →

Indirect evidence

“Adswerve helps marketers and agencies embrace innovation to create a positive impact to their businesses.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026201-500213 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026201-500199 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceColumbia, MO, United StatesHQ checked Sep 21, 202651-200192 contacts →

Indirect evidence

“Division-D is a full-service digital media partner offering fully managed programmatic, search, social, and influencer marketing solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceSouthfield, MI, United StatesHQ checked Sep 21, 202651-200190 contacts →

Indirect evidence

“We founded Brkthru in 2017 with a focus on what we believe to be missing in our industry – SERVICE.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026201-500186 contacts →

Indirect evidence

“Marketers choose Yahoo DSP to transform diverse and unique data sets into proven results.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceDenver, CO, United StatesHQ checked Sep 21, 2026201-500183 contacts →

Indirect evidence

“AdCellerant is a digital marketing platform and growth partner that helps media companies and agencies simplify operations, scale campaigns, and drive measurable growth.”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceBaton Rouge, LA, United StatesHQ checked Sep 21, 202651-200167 contacts →

Partial evidence

“Founded by Bo White in 1993 during the early stages of the Internet, Click Here Digital is a digital marketing and consulting firm that provides full-service digital marketing…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 2,519 adtech consulting services based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 13,521 reachable decision-makers.

Free signup · no credit card

View the full list →

Adtech consulting services based in the United States at a glance

As of Sep 21, 2026
40.7%Verified-email coverage
13.2Average contacts per company
1-10Median size (employees)
8.4%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
1,579
11-50
677
51-200
174
201-500
45
501-1,000
16
1,001-5,000
21
5,001-10,000
1
10001+
3

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 2,519 companies.

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 adtech consulting services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “adtech consulting services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names adtech consulting services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among adtech consulting services, 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 its RevenueBase Smart Search 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, 13,521 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 21, 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

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names adtech consulting services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many adtech consulting services are there based in the United States?

RevenueBase identified 2,519 adtech consulting services 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?

Grazitti Interactive, headquartered in Mountain View, tops this list with the largest team on record.

Which city has the most adtech consulting services?

New York leads with 212 headquartered companies, followed by Los Angeles (105) and Miami (73).

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 13,521 verified decision-maker contacts tracked across these 2,519 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,519 adtech consulting services based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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 Smart Search, 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.