Top 100 SEO Companies in Illinois
The Best of October 2026Looking 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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661Undisclosed2 - 9 employeesPlainfield, ILHeadquartered in Plainfield, Illinois, TWP Marketing is an Advertising company. The team focuses on Advertising and Social Media Marketing.Read More
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662Undisclosed2 - 9 employeesCrystal Lake, ILLas Casas Graphics is a small SEO agency and web design company. They focus on Search Engine Optimization and Web Design and were founded in 1993.Read More
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663Undisclosed2 - 9 employeesHanover Park, ILEstablished in 2016, Prudent Digital is a small branding company. Their team focuses on Branding and Email Marketing.Read More
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664Undisclosed2 - 9 employeesGeneva, ILR C Romine Advertising & Marketing, an Advertising company, offer Advertising and Web Development. They were established in 1976.Read More
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665Undisclosed2 - 9 employeesOswego, ILSpider Design, Inc. Is an Advertising company located in Oswego, Illinois. Their services include Advertising and Graphic Design.Read More
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666Undisclosed2 - 9 employeesGlendale Heights, ILIT managed services and SEO services firm DP Tech Group is located in Glendale Heights, Illinois. Launched in 2003, the team specializes in IT managed services and Search Engine Optimization.Read More
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667Undisclosed2 - 9 employeesSouth Elgin, ILEstablished in 2013, Cinnamon Digital, LLC is a SEO services firm and website development firm. The company provides Search Engine Optimization and Web Development, and is small.Read More
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668Undisclosed2 - 9 employeesElgin, ILOmni Marketing Interactive is an UX agency and SEO company. They provide UX/UI Design and Search Engine Optimization and were founded in 1995.Read More
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669Undisclosed2 - 9 employeesChicago, ILSEO River is a small social media marketing firm and SEO company. Founded in 2009, the team focuses on Social Media Marketing and Search Engine Optimization.Read More
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670Undisclosed2 - 9 employeesHuntley, ILSEO Windy City is a Huntley, Illinois-based SEO company and pay per click company. They offer Search Engine Optimization and Pay Per Click and were launched in 2002.Read More
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671Undisclosed2 - 9 employeesVernon Hills, ILMarie Daniel Group, LLC is a branding firm. Their small team of employees is located in Vernon Hills, Illinois. Their team specializes in Branding and Public Relations.Read More
Industries
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672Undisclosed2 - 9 employeesEvanston, ILMarketSurge is a web design company. Their small team of employees is based in Evanston, Illinois. Their team offers Web Design and Content Marketing.Read More
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673$1,000+Freelancer employeesChicago, ILModem Digital is a PPC company headquartered in Chicago, Illinois. They offer Pay Per Click and Web Design and were launched in 2017.Read More
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674$1,000+50 - 249 employeesChicago, ILEstablished in 2022, INSIDEA is a CRM consulting and SI company. The firm focuses on CRM consulting and SI, Email Marketing, Pay Per Click, Social Media Marketing, and more and has a midsize team. The firm is headquartered in Dover, Delaware; New York, New York; Los Angeles, California and Austin, Texas.Read More
Industries
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675$1,000+Freelancer employeesBatavia, ILLang Growth Consultancy is a Business Consulting company. Based in Batavia, Illinois, the team focuses on Business Consulting and Market Research.Read More
Industries
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676$5,000+2 - 9 employeesChicago, ILEstablished in 2006, Soyculto is a small CXH, Argentina-based UX design agency. Their services include UX/UI Design and Content Marketing.Read More
Industries
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677UndisclosedFreelancer employeesNaperville, ILIGenMedia, an e-commerce development company, is in Naperville, Illinois and Lockport, Illinois. They focus on E-Commerce Development and Email Marketing.Read More
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678Undisclosed50 - 249 employeesChicago, ILYes& Lipman Hearne is a branding company. Located in Chicago, Illinois, their midsize team offers Branding and Public Relations. The company was founded in 1988.Read More
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679Undisclosed50 - 249 employeesSpringfield, ILLead IT Corporation is a midsize social media marketing agency founded in 2005. Their services include Social Media Marketing and Content Marketing.Read More
Industries
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680Undisclosed50 - 249 employeesPeru, ILBased in Peru, Illinois, LKCS is a branding agency. They focus on Branding and Logo.Read More
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681$1,000+Freelancer employeesChicago, ILAstucia, an AI Consulting company, was launched in 2025. The small team offers AI Consulting and Artificial Intelligence.Read More
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682UndisclosedFreelancer employeesWaukegan, ILClutch Capital Agency is an Advertising company launched in 2026. Located in Waukegan, Illinois, the team specializes in Advertising and Branding.Read More
Industries
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683$10,000+50 - 249 employeesChicago, ILBreaking Blue is a branding company. The London, England-based firm provides Branding and Call Center Services.Read More
Industries
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684$5,000+50 - 249 employeesChicago, ILLaunched in 2018, Web Tonic is a Performance Marketing company. The firm focuses on Performance Marketing, Pay Per Click, Search Engine Optimization, Social Media Marketing, and more and has a midsize team.Read More
Industries
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685$5,000+10 - 49 employeesChicago, ILCustom Legal Marketing, a SEO services firm, was founded in 2005. The team offers Search Engine Optimization and Pay Per Click.Read More
Clients
Briskman Briskman & Greenberg -
686Undisclosed10 - 49 employeesElgin, ILVSG Commerce is an user experience design agency. The Elgin, Illinois-based firm was founded in 2006. Their services include UX/UI Design and Search Engine Optimization.Read More
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687$5,000+2 - 9 employeesGeneva, ILDoubletime Marketing is a SEO services firm. Established in 2002, their team focuses on Search Engine Optimization and Web Design.Read More
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688Undisclosed2 - 9 employeesPeoria, ILTJ Dub Web Design is a SEO agency based in Peoria, Illinois. They provide Search Engine Optimization and Web Design.Read More
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689Undisclosed2 - 9 employeesDeerfield, ILNorthShore Loyalty is a small SEO company. Launched in 2014, the team provides Search Engine Optimization and Content Marketing.Read More
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690Undisclosed2 - 9 employeesChicago, ILLocated in Chicago, Illinois, WebProgress.Net, Inc. Is a small SEO company. Their services include Search Engine Optimization and Social Media Marketing.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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