Top 100 SEO Companies in Illinois
The Best of December 2025Looking for a top SEO firm in Illinois?
Compare top-performing SEO agencies to see which may be the best fit for your business goals. Whether you're seeking to improve your ranking in search engine results pages, boost website traffic, or show up in local search results, investing in SEO is important for business growth.
To assist you in your search for a partner, we’ve compiled this list of the top SEO companies in Illinois. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
Jump to Most Reviewed Companies
List of the Best Illinois SEO Firms
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$1,000+50 - 249 employeesSan Antonio, TXFunnel Boost Media is a SEO company. They are located in San Antonio, Texas; Doral, Florida; Boston, Massachusetts and San Francisco, California and have a midsize team that focuses on Search Engine Optimization, Advertising, Pay Per Click, and Web Design. The agency was launched in 2012.Read More
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$1,000+10 - 49 employeesNew York, NYSEO company NuStream is in New York, New York; Philadelphia, Pennsylvania and Allentown, Pennsylvania. They provide Search Engine Optimization, Web Design, Digital Strategy, and Video Production and were established in 2010.Read More
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691Undisclosed2 - 9 employeesChicago, ILConnections Marketing is a branding agency. Headquartered in Chicago, Illinois, the company was founded in 2009. Their team offers Branding and Media Planning & Buying.Read More
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692Undisclosed2 - 9 employeesChicago, ILThinkBox312 is a social media marketing company. They are based in Chicago, Illinois, and their services include Social Media Marketing and Web Development.Read More
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693Undisclosed2 - 9 employeesChicago, ILFounded in 2003, Markitexture is a Sales Outsourcing company. The team focuses on Sales Outsourcing and Event Management and is headquartered in Chicago, Illinois.Read More
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694Undisclosed2 - 9 employeesPark Ridge, ILBare Sky Marketing is a Park Ridge, Illinois-based Content Writing Services company. They specialize in Content Writing Services and Content Marketing and were established in 2004.Read More
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695Undisclosed2 - 9 employeesNaperville, ILNaper Solutions, Inc. Is an Email Marketing company established in 1997. In Naperville, Illinois, the team provides Email Marketing and Search Engine Optimization.Read More
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696Undisclosed2 - 9 employeesWinfield, ILRelevant Elephant is a Marketing Strategy company launched in 2014. Headquartered in Winfield, Illinois, the team focuses on Marketing Strategy and Social Media Marketing.Read More
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697Undisclosed2 - 9 employeesHoffman Estates, ILAtRevenue is a branding agency. Their team is based in Hoffman Estates, Illinois and specializes in Branding and Marketing Strategy.Read More
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698Undisclosed2 - 9 employeesHighland Park, ILDigital Content Strategy LLC is a branding agency based in Highland Park, Illinois. Their services include Branding and Public Relations.Read More
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699Undisclosed50 - 249 employeesChicago, ILC-4 Analytics is a Conversion Optimization company. They were founded in 2009, and their services include Conversion Optimization and Graphic Design.Read More
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700$5,000+50 - 249 employeesChicago, ILMagnet 360 is an Advertising company. They provide Advertising and Branding and were established in 2001. The agency is based in St. Louis Park, Minnesota and Chicago, Illinois.Read More
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701$5,000+2 - 9 employeesChicago, ILFounded in 2012, Online Media Masters is a small SEO agency in Chicago, Illinois. Their team provides Search Engine Optimization and UX/UI Design.Read More
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702Undisclosed2 - 9 employeesSchaumburg, ILDirect Marketing company KDR Media Group is in Schaumburg, Illinois. The team focuses on Direct Marketing and Search Engine Optimization.Read More
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703Undisclosed2 - 9 employeesPalatine, ILMPurcell Designs, a graphic design company, is based in Palatine, Illinois. They specialize in Graphic Design and Search Engine Optimization and were launched in 2014.Read More
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704Undisclosed2 - 9 employeesMount Prospect, ILI-seo.us is a small Mount Prospect, Illinois-based Market Research company. Their services include Market Research and Search Engine Optimization.Read More
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705Undisclosed2 - 9 employeesWheaton, ILAdvertising company TREX Digital Marketing is located in Wheaton, Illinois. The team focuses on Advertising and Search Engine Optimization.Read More
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706Undisclosed2 - 9 employeesBarrington, ILBarrington SEO is a Market Research company. Their team is located in Barrington, Illinois. The firm provides Market Research and Email Marketing.Read More
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707Undisclosed2 - 9 employeesBarrington, ILAthlete Web Design is a web design agency founded in 2009. Their team provides Web Design and Logo.Read More
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708Undisclosed2 - 9 employeesNaperville, ILNaperville PC Repair is a small IT managed services company based in Naperville, Illinois. Their services include IT managed services and Search Engine Optimization.Read More
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709Undisclosed2 - 9 employeesNaperville, ILNaper Design is a SEO agency. Based in Naperville, Illinois, their small team provides Search Engine Optimization and Web Design. The company was founded in 2008.Read More
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710Undisclosed2 - 9 employeesCary, ILHeroic Media Group, LLC is a PR firm. The Cary, Illinois-based team provides Public Relations and Search Engine Optimization.Read More
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711Undisclosed2 - 9 employeesElgin, ILYaniz Corporation, an application development firm, is based in Elgin, Illinois. Their services include Mobile App Development and Web Development.Read More
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712Undisclosed2 - 9 employeesLisle, ILIVO Inc. Is a graphic design company located in Lisle, Illinois. Established in 2005, the team specializes in Graphic Design and Search Engine Optimization.Read More
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713$1,000+10 - 49 employeesOrland Park, ILBeingSeen360 is a social media marketing agency. In Orland Park, Illinois, the firm specializes in Social Media Marketing and Content Marketing.Read More
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714Undisclosed10 - 49 employeesGlen Ellyn, ILThanx Media, an UX agency, was launched in 2005. The small team provides UX/UI Design and Digital Strategy.Read More
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715Undisclosed10 - 49 employeesOrland Park, ILSocial media marketing firm Event Hawk is located in Orland Park, Illinois. Their services include Social Media Marketing and Search Engine Optimization.Read More
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716Undisclosed50 - 249 employeesSpringfield, ILHeadquartered in Springfield, Illinois, Disrupting Ads is a Business Consulting company. The team specializes in Business Consulting and Advertising.Read More
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717$5,000+50 - 249 employeesNaperville, ILAgami Technologies Pvt Ltd is a SEO agency. The Naperville, Illinois-based agency was launched in 2011. Their services include Search Engine Optimization and Custom Software Development.Read More
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718$5,000+2 - 9 employeesInverness, ILCustom software development firm Radra Solutions was launched in 2007. The small team specializes in Custom Software Development and Search Engine Optimization.Read More
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719$5,000+2 - 9 employeesBelleville, ILTenby Technologies is an Email Marketing company founded in 2007. Their team focuses on Email Marketing and Search Engine Optimization.Read More
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720Undisclosed2 - 9 employeesRockford, ILSmall application development firm Bucey Software, is in Rockford, Illinois. The team provides Mobile App Development and Search Engine Optimization.Read More
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Check out a SEO Company in Illinois with the most new reviews in the past 12 months.
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