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Company lists · Data refreshed September 2026

Top 23 Online advertising agencies based in Madison, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 51 companies tracked

RevenueBase identified 51 online advertising agencies headquartered in Madison, United States as of September 2026 and tracks 403 professional contacts across them, including 203 with verified work emails. New York is the largest hub.

This list covers online advertising agencies headquartered in Madison, 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
51Companies
403Contacts tracked
203Verified emails
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The 23 largest online advertising agencies based in Madison, United States

Ranked by team size
Top 23 of 51 online advertising agencies based in Madison, 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
Zero Gravity MarketingIndirect evidence
Madison, CT, United StatesHQ checked Sep 5, 202651-20074

“Zero Gravity Marketing is a digital marketing agency helping growth-focused organizations generate measurable results across SEO, paid media, and omnichannel digital strategy.”

Source: company website · checked Sep 5, 2026
2
Green Line DigitalIndirect evidence
Madison, NJ, United StatesHQ checked Sep 5, 202651-20055

“Welcome to Green Line Digital, where your brand's potential meets our premium suite of digital services.”

Source: company website · checked Sep 5, 2026
3
Above The BAR Marketing, LLCIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 202611-5049

“Above the Bar Marketing offers comprehensive digital marketing services specifically tailored for law firms.”

Source: company website · checked Sep 5, 2026
4
Kw2Indirect evidence
Madison, WI, United StatesHQ checked Sep 5, 202611-5048

“KW2 is a full-service digital and marketing agency that has been empowering and improving lives since 1986.”

Source: company website · checked Sep 5, 2026
5
Raborn MediaPartial evidence
Madison, MS, United StatesHQ checked Sep 5, 202611-5031

“At Raborn Media, we provide an innovative and strategic approach to online marketing.”

Source: company website · checked Sep 5, 2026
6
The Digital RingIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 202611-5015

“As a full-service digital marketing agency, we provide innovative marketing solutions to organizations nationwide.”

Source: company website · checked Sep 5, 2026
7
Phase 3 Digital AgencyIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 202611-5012

“Phase 3 Digital Agency’s goal is to maximize our partners' growth, whether local or global, by providing world-class, innovative digital ad products and marketing services with a…”

Source: company website · checked Sep 5, 2026
8
Hightower AdvertisingIndirect evidence
Madison, MS, United StatesHQ checked Sep 5, 202611-509

“We build long-lasting partnerships by providing top-notch customer service, award-winning creative work and a comprehensive marketing plan for your business, based on…”

Source: company website · checked Sep 5, 2026
9
Pilch BarnetIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 202611-509

“Pilch + Barnet has been creating results-driven marketing since 2001.”

Source: company website · checked Sep 5, 2026
10
SortisIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 202611-508

“We were founded in 1995 in Madison, Wisconsin, and started building websites when the industry was in its infancy.”

Source: company website · checked Sep 5, 2026
11
Dirigible StudioIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 20261-106

“Smart, modern web design and digital marketing for small- and medium-sized businesses.”

Source: company website · checked Sep 5, 2026
12
Kella DesignStrong evidence
Madison, WI, United StatesHQ checked Sep 5, 20261-105

“Kella Design is a full-service marketing firm specializing in graphic design, custom website development, online advertising and content marketing.”

Source: company website · checked Sep 5, 2026
13
Evol MarketingIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 20261-103

“The History of evol Marketing evol Marketing Inc.”

Source: company website · checked Sep 5, 2026
14
Seer GroupIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 202611-503

“Seer Group is a full-service digital marketing firm specializing in acquisition and retention strategies.”

Source: company website · checked Sep 5, 2026
15
Venturemedia360Indirect evidence
Madison, MS, United StatesHQ checked Sep 5, 20261-102

“VentureMedia360 offers Jackson SEO Services and Digital Marketing Agency services.”

Source: company website · checked Sep 5, 2026
16
Madison StudiosIndirect evidence
Madison, GA, United StatesHQ checked Sep 5, 20261-102

“For 15 years, Madison Studios has been offering small/medium size businesses individualized award-winning websites that are personalized to your customers.”

Source: company website · checked Sep 5, 2026
17
Ampliphi DigitalIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 20261-102

“We make hard social media concepts easy after we prove they really work ourselves.”

Source: company website · checked Sep 5, 2026
18
Caffeine INCIndirect evidence
Madison, CT, United StatesHQ checked Sep 5, 202611-501

“Caffeine is a full-service Interactive Agency located in New Haven, Connecticut, offering a wide range of services including website Design, custom application development…”

Source: company website · checked Sep 5, 2026
19
ROW DigitalIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 20261-101

“At ROW Digital, we are passionate about helping businesses stay ahead of the game with innovative marketing solutions.”

Source: company website · checked Sep 5, 2026
20
Underpin MediaPartial evidence
Madison, WI, United StatesHQ checked Sep 5, 20261-101

“At Underpin Media, our mission is to empower businesses to elevate their brand and grow through authentic and inclusive digital marketing, advertising, event, and professional…”

Source: company website · checked Sep 5, 2026
21
Stok DigitalIndirect evidence
Madison, United StatesHQ checked Sep 5, 20261-101

“STOK Digital is determined to help businesses achieve their goals through innovate digital marketing strategies that WORK run by couple, Kelsey and Sean Stokstad.”

Source: company website · checked Sep 5, 2026
22
GET Found MadisonPartial evidence
Madison, WI, United StatesHQ checked Sep 5, 20261-101

“We help assisted living companies & local businesses reach new residents & customers by ranking higher in online searches with search engine optimization (SEO) and pay-per-click…”

Source: company website · checked Sep 5, 2026
23
Digital UntangledIndirect evidence
Madison, WI, United StatesHQ checked Sep 5, 20261-101

“Want a website that wows?”

Source: company website · checked Sep 5, 2026

Showing 23 of 51 online advertising agencies based in Madison, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 203 reachable decision-makers.

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Online advertising agencies based in Madison, United States at a glance

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

Companies by employee count

1-10
34
11-50
15
51-200
2

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Madison, over 51 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 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 Madison, 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 Madison 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, 203 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 in the United States

Frequently asked

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

RevenueBase identified 51 online advertising agencies headquartered in Madison, 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?

Zero Gravity Marketing, headquartered in Madison, 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 203 verified decision-maker contacts tracked across these 51 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 51 online advertising agencies based in Madison, United States. Start with a free account, no credit card.

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Related lists

Browse: Companies home · Online advertising agencies in United States · 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.

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