Company lists · Data refreshed September 2026
Top 25 Sem agencies based in Chicago, United States
RevenueBase identified 95 sem agencies headquartered in Chicago, United States as of September 2026 and tracks 3,884 professional contacts across them, including 117 with verified work emails. New York is the largest hub.
This list covers sem agencies 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 22, 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 sem agencies based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 19 contacts → | ||||
Indirect evidence “A leading provider of online marketing for lawyers, Market JD is an interactive agency that will help your firm promote its services on the Internet, in print, and on television…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 19 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 19 contacts → | ||||
Indirect evidence “Perfect Search Media is a top-rated, Chicago-based digital marketing agency.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 17 contacts → | ||||
Indirect evidence “Since 2001, we've been offering high-quality single-source Internet technology solutions for business and organizations.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 13 contacts → | ||||
Indirect evidence “At Arc4, we empower businesses to grow by creating high-performing websites and enhancing their visibility in local search results.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 12 contacts → | ||||
Indirect evidence “Elliottsweb is a professional internet consulting company focusing on internet marketing, search engine optimization (SEO), social media, ecommerce development, and website…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 11 contacts → | ||||
Indirect evidence “Blue Magnet Interactive is a full-service digital marketing agency, catering to the hospitality industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 contacts → | ||||
Indirect evidence “Simplified Solutions is a Digital Marketing and Technology company located in Chicago, Illinois.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 contacts → | ||||
Indirect evidence “We revolutionize digital marketing with Generative Engine Optimization (GEO), AI-powered SEO, and high-performance Digital Advertising.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 contacts → | ||||
Indirect evidence “Digital Destination is a full service internet market agency.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “STG is a development and marketing agency that helps businesses of all sizes thrive online.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 contacts → | ||||
Indirect evidence “Digital4Startups is a digital marketing consulting firm working with a variety of clients from large fast-growing companies to sole proprietors.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Indirect evidence “Evolving Interactive is a Chicago SEO firm, specializing in a complete list of internet marketing services and strategies.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Indirect evidence “OnRanker is a full-service marketing agency that can help your business grow.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “The future is here, we all have a choice, Grow our business with modern tools (SEO, Up-to-Date Websites, Social Media Management, & Conversion Rate Optimization) and flourish or…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “EB Digital offers marketing solutions for growing businesses.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence “Operation Technology is an award-winning Chicago marketing agency partnering with organizations to develop and execute customized digital marketing strategies and campaigns…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Affordable, small business website marketing.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “Paid search is all we do!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “We are a full-service digital marketing agency specializing in SEO, PPC, social media, display advertising, email marketing, website design, and more.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “GainTap is a Chicago based search engine marketing company that specializes in Wordpress optimization and lead generation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “We are a Digital Marketing and Search Engine Optimization Company that works with small and medium sized businesses to increase their leads, website traffic, and sales.” Source: RevenueBase Database · checked Sep 22, 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: sem agencies. 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 sem agencies.
- Partial evidence
- Its own public description names part of sem agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sem agencies. 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 95 sem agencies based in Chicago, United States
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Sem agencies based in Chicago, United States at a glance
As of Sep 22, 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 95 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 sem agencies, 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 “sem agencies”. 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 sem agencies), 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 sem agencies, 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, 117 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 22, 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.
Sem agencies by metro in the United States
- Sem agencies in New York234
- Sem agencies in Los Angeles149
- Sem agencies in Houston121
- Sem agencies in Miami110
- Sem agencies in Austin108
- Sem agencies in Denver101
- Sem agencies in Chicago95
- Sem agencies in San Diego95
- Sem agencies in Las Vegas83
- Sem agencies in Dallas81
- Sem agencies in Tampa77
- Sem agencies in San Francisco73
- Sem agencies in Atlanta69
- Sem agencies in Phoenix67
- Sem agencies in Orlando58
- Sem agencies in Portland53
- Sem agencies in Seattle48
- Sem agencies in Sheridan48
- Sem agencies in Charlotte47
- Sem agencies in Fort Lauderdale43
- Sem agencies in Irvine42
- Sem agencies in Scottsdale40
- Sem agencies in Salt Lake City36
- Sem agencies in Boston35
- Sem agencies in Philadelphia35
- Sem agencies in Boca Raton34
- Sem agencies in Minneapolis32
- Sem agencies in San Antonio31
- Sem agencies in Raleigh30
- Sem agencies in Cleveland29
- Sem agencies in Sacramento29
- Sem agencies in Colorado Springs28
- Sem agencies in San Jose26
- Sem agencies in Jacksonville25
- Sem agencies in Kansas City25
- Sem agencies in Richmond25
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 sem agencies, 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 sem agencies are there based in Chicago, United States?
RevenueBase identified 95 sem agencies 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?
Logical Media Group, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most sem agencies?
New York leads with 234 headquartered companies, followed by Los Angeles (149) and Houston (121).
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 117 verified decision-maker contacts tracked across these 95 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 22, 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.