Company lists · Data refreshed September 2026
Top 25 Advertising platforms based in Chicago, United States
RevenueBase identified 207 advertising platforms headquartered in Chicago, United States as of September 2026 and tracks 3,545 professional contacts across them, including 1,447 with verified work emails. New York is the largest hub.
This list covers advertising platforms headquartered in Chicago, 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 23, 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.
The 25 largest advertising platforms based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 891 contacts → | ||||
Partial evidence “Basis is a global provider of media automation and programmatic advertising software and services for enterprises.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 2 | 446 contacts → | ||||
Indirect 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 23, 2026Thanks. The Data Team will review it. | |||||
| 3 | 161 contacts → | ||||
Partial evidence “Strike Social’s machine learning technology is an end-to-end YouTube, Meta, TikTok, and all-biddable social execution platform built to generate savings for agencies and deliver…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 4 | 137 contacts → | ||||
Indirect evidence “Galactic Fed is a full-service digital marketing agency focused on one thing: HELPING BUSINESSES GROW THEIR REVENUE.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 5 | 131 contacts → | ||||
Partial evidence “Owned by Awin, ShareASale's affiliate marketing platform empowers advertisers and publishers of all sizes to grow their business online.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 6 | 85 contacts → | ||||
Strong evidence “DOE Media is a leading independently owned and operated data-driven direct response advertising platform providing sophisticated solutions to partners ranging from startups to…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 7 | 69 contacts → | ||||
Indirect evidence “Envisionit is an award-winning, full-service digital marketing agency headquartered in Chicago with in-house Media, Creative, Tech, Strategy and Analytics teams.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 8 | 65 contacts → | ||||
Indirect evidence “Transform your marketing into a growth engine.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 9 | 64 contacts → | ||||
Partial evidence “mCanvas, an awareness generating platform, builds experiential ad creatives using standard assets, which are distributed across top mobile apps and websites globally.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 10 | 45 contacts → | ||||
Indirect evidence “Logical Media Group is a full-service digital marketing agency located in the River North neighborhood of Chicago.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 11 | 35 contacts → | ||||
Partial evidence “Radio Advertising was established in 1963 specializing in broadcast advertising for small to mid-size businesses.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 12 | 30 contacts → | ||||
Indirect evidence “SitePlug drives incremental sales from high-intent users by leveraging the power of search and content.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 13 | 24 contacts → | ||||
Indirect evidence “Since 2016, we’ve been your trusted partner in cutting-edge digital marketing and performance-driven success.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 14 | 24 contacts → | ||||
Indirect evidence “ValueClick, Inc.(Nasdaq: VCLK) is one of the world’s largest and most diversified digital marketing companies, connecting hundreds of leading retailers and brands with consumers.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 15 | 19 contacts → | ||||
Partial evidence “SEO Design Chicago works with companies looking to increase their brand presence and grow their business through online digital advertising.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 16 | 19 contacts → | ||||
Indirect evidence “Perfect Search Media is a top-rated, Chicago-based digital marketing agency.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 17 | 18 contacts → | ||||
Partial evidence “Fortress Consulting combines the creative strengths of a full service advertising agency with the technical skills of a cutting edge digital media firm.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 18 | 18 contacts → | ||||
Indirect evidence “For more than 50 years, Fox Associates, Inc.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 19 | 18 contacts → | ||||
Partial evidence “Accuen is Omnicom Media Group’s programmatic agency, operating the industry’s first open and flexible platform for programmatic media buying for the world's leading marketers.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 20 | 17 contacts → | ||||
Partial evidence “We are an advertising technology company based in Chicago.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 21 | 17 contacts → | ||||
Indirect evidence “Investing Media Solutions (IMS) is a premium financial media company reaching millions of influential, financially-fluent readers who are seeking out actionable editorial…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 contacts → | ||||
Indirect evidence “DS & P is an digital marketing agency offering SEO, PPC, Social Media Management, Crowd-Funding, Website Development and Branding Solutions.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 23 | 16 contacts → | ||||
Indirect evidence “Matchnode is an ROI-focused internet marketing company that serves its clients in the areas of digital strategy, traffic generation, and conversion optimization.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 contacts → | ||||
Partial evidence “Digital Marketing Agency that takes a scientific approach to -Digital Marketing -Paid Ad Platforms -Marketing Creatives -Landing Pages -Email/SMS Campaigns & Automated Flows…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Partial evidence “Hippo Media is a digital media company specializing in video production, content creation, and targeted advertising.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: advertising platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names advertising platforms.
- Partial evidence
- Its own public description names part of advertising platforms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name advertising platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 207 advertising platforms based in Chicago, United States
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Advertising platforms based in Chicago, United States at a glance
As of Sep 23, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 207 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 advertising platforms, 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 Chicago, United States whose own description of what they do matches “advertising platforms”. 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 advertising platforms), 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 advertising platforms, and records with no verified work email. Companies headquartered outside Chicago 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, 1,447 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 23, 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.
Advertising platforms by metro in the United States
- Advertising platforms in New York946
- Advertising platforms in Los Angeles393
- Advertising platforms in Miami323
- Advertising platforms in San Francisco300
- Advertising platforms in Chicago207
- Advertising platforms in Austin203
- Advertising platforms in Atlanta171
- Advertising platforms in Houston157
- Advertising platforms in Denver154
- Advertising platforms in Las Vegas152
- Advertising platforms in Sheridan148
- Advertising platforms in Dallas141
- Advertising platforms in San Diego137
- Advertising platforms in Seattle112
- Advertising platforms in Tampa110
- Advertising platforms in Orlando98
- Advertising platforms in Boston90
- Advertising platforms in Phoenix87
- Advertising platforms in Wilmington82
- Advertising platforms in Charlotte79
- Advertising platforms in Philadelphia75
- Advertising platforms in Portland72
- Advertising platforms in Irvine70
- Advertising platforms in Scottsdale69
- Advertising platforms in San Antonio65
- Advertising platforms in Santa Monica63
- Advertising platforms in New York City61
- Advertising platforms in Minneapolis60
- Advertising platforms in Boca Raton56
- Advertising platforms in Washington56
- Advertising platforms in San Jose55
- Advertising platforms in Fort Lauderdale54
- Advertising platforms in Dover50
- Advertising platforms in Salt Lake City50
- Advertising platforms in Newark46
- Advertising platforms in Pittsburgh45
- Advertising platforms in Columbus43
- Advertising platforms in Nashville42
- Advertising platforms in Sacramento40
- Advertising platforms in Raleigh38
- Advertising platforms in Cleveland35
- Advertising platforms in Kansas City34
- Advertising platforms in Indianapolis33
- Advertising platforms in Fort Worth32
- Advertising platforms in Cincinnati31
- Advertising platforms in Lewes31
- Advertising platforms in Miami Beach31
- Advertising platforms in Sarasota31
- Advertising platforms in Newport Beach30
- Advertising platforms in West Palm Beach30
- Advertising platforms in Jacksonville29
- Advertising platforms in Sunnyvale29
- Advertising platforms in Baltimore28
- Advertising platforms in Brooklyn28
- Advertising platforms in Boulder27
- Advertising platforms in Colorado Springs27
- Advertising platforms in Louisville27
- Advertising platforms in Richmond27
- Advertising platforms in Albuquerque26
- Advertising platforms in Bellevue26
- Advertising platforms in Tempe26
- Advertising platforms in Charleston25
- Advertising platforms in Glendale25
- Advertising platforms in Middletown25
- Advertising platforms in Plano25
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 advertising platforms, 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 advertising platforms are there based in Chicago, United States?
RevenueBase identified 207 advertising platforms headquartered in Chicago, 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?
BASIS, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most advertising platforms?
New York leads with 946 headquartered companies, followed by Los Angeles (393) and Miami (323).
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 1,447 verified decision-maker contacts tracked across these 207 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 23, 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 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.
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