Skip to main content

Company lists · Data refreshed September 2026

Top 25 Online advertising agencies based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 27,119 companies tracked

RevenueBase identified 27,119 online advertising agencies headquartered in the United States as of September 2026 and tracks 172,571 professional contacts across them, including 42,246 with verified work emails and 50,417 with mobile numbers. New York is the largest hub.

This list covers online 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
27,119Companies
172,571Contacts tracked
42,246Verified emails
50,417Mobile numbers
Unlock all 27,119 companies Free signup · no credit card · 500 free credits

The 25 largest online advertising agencies based in the United States

Ranked by team size
Top 25 of 27,119 online 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 online 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.
#CompanyHeadquartersEmployeesContacts
1
HIBUIndirect evidence
Cedar Rapids, IA, United StatesHQ checked Sep 5, 20261,001-5,0004,426

“Hibu is a leading provider of technology-driven, integrated digital marketing solutions for America’s local businesses, trusted by tens of thousands of local business owners.”

Source: company website · checked Sep 5, 2026
2
Constant ContactIndirect evidence
Waltham, MA, United StatesHQ checked Sep 5, 20261,001-5,0001,611

“We deliver for small businesses with powerful tools to simplify and amplify digital marketing.”

Source: company website · checked Sep 5, 2026
3
LocaliqIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0001,534

“Grow your business with digital marketing powered by AI and local expertise.”

Source: company website · checked Sep 5, 2026
4
ScorpionIndirect evidence
Draper, UT, United StatesHQ checked Sep 5, 2026501-1,0001,076

“Scorpion is the leader in helping local businesses succeed by focusing on what truly matters-driving revenue.”

Source: company website · checked Sep 5, 2026
5
Logical PositionIndirect evidence
Lake Oswego, OR, United StatesHQ checked Sep 5, 2026501-1,000899

“Logical Position (LP) is an Inc.”

Source: company website · checked Sep 5, 2026
6
WEBFXIndirect evidence
Harrisburg, PA, United StatesHQ checked Sep 5, 2026501-1,000866

“We're here to be your digital marketing growth partner in the AI era.”

Source: company website · checked Sep 5, 2026
7
NP DigitalIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261,001-5,000866

“Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…”

Source: company website · checked Sep 5, 2026
8
SEO INCIndirect evidence
Carlsbad, CA, United StatesHQ checked Sep 5, 2026n/a825

“Since its inception in 1997, SEO Inc.”

Source: company website · checked Sep 5, 2026
9
IquantiIndirect evidence
Jersey City, NJ, United StatesHQ checked Sep 5, 2026501-1,000538

“iQuanti was founded to deliver on the promise of high-performance digital marketing, combining deep analytics, proprietary technology, and a results-driven approach.”

Source: company website · checked Sep 5, 2026
10
TombrasIndirect evidence
Knoxville, TN, United StatesHQ checked Sep 5, 2026201-500496

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

Source: company website · checked Sep 5, 2026
11
AmsiveIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 2026501-1,000488

“Amsive is a data-driven performance marketing agency that enhances marketing ROI through innovative customer acquisition and engagement solutions.”

Source: company website · checked Sep 5, 2026
12
VsplashIndirect evidence
Lyndhurst, NJ, United StatesHQ checked Sep 5, 2026201-500400

“vSplash is a trusted white label digital marketing company, offering SEO, PPC, web development and design, content services, and much more.”

Source: company website · checked Sep 5, 2026
13
UnifiedIndirect evidence
NY, United StatesHQ checked Sep 5, 2026201-500399

“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: company website · checked Sep 5, 2026
14
KPL Tech Solution Pvt. LTDIndirect evidence
Middletown, DE, United StatesHQ checked Sep 5, 2026201-500390

“Do you want to see your business on heights?”

Source: company website · checked Sep 5, 2026
15
LocaledgeStrong evidence
Buffalo, NY, United StatesHQ checked Sep 5, 2026501-1,000383

“LocalEdge, a Hearst Media Services Company, offers a full suite of online advertising products and services for any size business and budget across the country.”

Source: company website · checked Sep 5, 2026
16
Money MailerIndirect evidence
Cypress, CA, United StatesHQ checked Sep 5, 2026201-500379

“Money Mailer is recognized as a leader in the direct marketing industry, delivering local deals to neighborhoods since 1979.”

Source: company website · checked Sep 5, 2026
17
Reprise DigitalIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,000366

“We are now KINESSO.”

Source: company website · checked Sep 5, 2026
18
Digital SilkPartial evidence
Miami, FL, United StatesHQ checked Sep 5, 202651-200361

“Digital Silk is a full-service digital agency focused on Growing Brands Online.”

Source: company website · checked Sep 5, 2026
19
Coalition TechnologiesIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 2026201-500320

“Coalition Technologies is one of the leading SEO & web design agencies in the United States.”

Source: company website · checked Sep 5, 2026
20
C-4 AnalyticsIndirect evidence
Wakefield, MA, United StatesHQ checked Sep 5, 2026201-500318

“C-4 Analytics is a cutting-edge automotive digital marketing solution dedicated to helping dealerships thrive in a digital-first world.”

Source: company website · checked Sep 5, 2026
21
PacificIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202651-200308

“We are a global growth marketing agency specializing in supporting enterprise brands, like Expedia, Petco, CVS, Square, Realtor, and more.”

Source: company website · checked Sep 5, 2026
22
Ignite VisibilityIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 2026201-500302

“Ignite Visibility is an award-winning digital marketing agency focused on helping franchise and multi-location businesses grow through data-driven strategies and innovative…”

Source: company website · checked Sep 5, 2026
23
Eztouse At Ogden Directories, INCIndirect evidence
Altoona, PA, United StatesHQ checked Sep 5, 202651-200302

“EZToUse is where your business gets easier.”

Source: company website · checked Sep 5, 2026
24
SmartsitesIndirect evidence
Paramus, NJ, United StatesHQ checked Sep 5, 2026201-500287

“Outsmart the competition with best-in-class digital marketing services.”

Source: company website · checked Sep 5, 2026
25
Drive Social MediaIndirect evidence
Saint Louis, MO, United StatesHQ checked Sep 5, 2026201-500284

“Drive Social Media takes a holistic approach to designing strategies for our clients.”

Source: company website · checked Sep 5, 2026

Showing 25 of 27,119 online advertising agencies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 42,246 reachable decision-makers.

Free signup · no credit card

See all 27,119 companies

Online advertising agencies based in the United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 1111 HQs
50,417Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
19,807
11-50
6,083
51-200
922
201-500
187
501-1,000
48
1,001-5,000
19
5,001-10,000
4
10001+
19

Verified emails by last verification

0–30
39,323
31–60
2,471
61–90
29
90–180
30
180+
393

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 online 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 “online 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 online 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, 42,246 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.

Online advertising agencies by metro

Frequently asked

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

RevenueBase identified 27,119 online 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?

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

Which city has the most online advertising agencies?

New York leads with 1111 headquartered companies, followed by Los Angeles (769) and Miami (613).

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 42,246 verified decision-maker contacts tracked across these 27,119 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.

Ready to reach these companies? Verified emails and direct dials for all 27,119 online advertising agencies based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

Browse: Companies home · All United States lists · All Online advertising agencies lists · New 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 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.

More company lists