Top 100 IT Services Companies in Illinois
The Best of December 2025Looking for a top IT services company in Illinois?
For your company to grow, it is essential to choose the best technology. Hiring an innovative IT services provider is the easiest way to ensure that you are making the best use of technology, increasing sales, and staying one step ahead of the competition.
To assist you in your search for a partner, we’ve compiled this list of the top IT consultants in Illinois. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Illinois IT Companies
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$5,000+50 - 249 employeesGaithersburg, MDRead More
DesignDATA is an IT managed services company. Established in 1979, the midsize agency is headquartered in Gaithersburg, Maryland and Washington, District of Columbia. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, and Cybersecurity.
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$1,000+50 - 249 employeesNaperville, ILRead More
BetterWorld Technology is a midsize IT managed services company launched in 2003. Their services include IT managed services, Cybersecurity, IT strategy consulting, and Compliance Consulting. The company is headquartered in Naperville, Illinois; Naperville, Illinois; Winter Park, Florida and Denver, Colorado.
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421$250,000+50 - 249 employeesGlenview, ILDigital Analyst Team, a Digital Strategy company, is headquartered in Glenview, Illinois. Launched in 2018, the team provides Digital Strategy and Social Media Marketing.Read More
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422Undisclosed250 - 999 employeesChicago, ILFounded in 2016, Inspire11, a midsize Digital Strategy company, is based in Chicago, Illinois and Atlanta, Georgia. Their team provides Digital Strategy and BI & big data consulting & SI.Read More
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423Undisclosed250 - 999 employeesChicago, ILVikingCloud is a midsize IT managed services company. They offer IT managed services and Application Testing and were launched in 1989.Read More
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424Undisclosed250 - 999 employeesSpringfield, ILWeb development firm Synapsis Inc. Was founded in 2012. The team provides Web Development and IoT development.Read More
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425$5,000+50 - 249 employeesItasca, ILIntegrative Systems is a midsize IT managed services company headquartered in Itasca, Illinois and Pune, India. Their services include IT managed services and IT staff augmentation.Read More
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FollettIndustries
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426$1,000+10 - 49 employeesChicago, ILCODEnt Pro is a web design agency. They specialize in Web Design and CRM consulting and SI and are headquartered in Chicago, Illinois.Read More
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427$10,000+10 - 49 employeesBartlett, ILPi9 is an Enterprise App Modernization company located in Ruislip, England and Bartlett, Illinois. They provide Enterprise App Modernization and BI & big data consulting & SI and were founded in 2013.Read More
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428$1,000+10 - 49 employeesPalatine, ILRead More
Core Vision IT Solutions is an IT managed services company headquartered in Brookfield, Wisconsin and Palatine, Illinois. The agency offers IT managed services, cybersecurity, cloud consulting & SI, unified communications consulting & SI, and more and has a small team.The agency was established in 2002.
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429Undisclosed2 - 9 employeesChicago, ILCybersecurity company Red Echoes Tech was founded in 2016. The team provides Cybersecurity and AR/VR development and is headquartered in Chicago, Illinois.Read More
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430Undisclosed10 - 49 employeesChicago, IL1872 Consulting is a Chicago, Illinois-based Blockchain company. They provide Blockchain and IT strategy consulting and were founded in 2014.Read More
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431Undisclosed10 - 49 employeesNaperville, ILLocated in Naperville, Illinois and Chicago, Illinois, Black Line IT is a software development firm. Their services include Custom Software Development and Digital Strategy.Read More
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432Undisclosed10 - 49 employeesChicago, ILLocated in Chicago, Illinois, Tech@MyDesk is a small Other Digital Marketing company. Their services include Other Digital Marketing and Other Marketing.Read More
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433$10,000+2 - 9 employeesBatavia, ILFounded in 2007, Zadro Web is a small SEO company. Their team offers Search Engine Optimization, Web Development, IT managed services, and Cybersecurity. The firm is headquartered in Batavia, Illinois.Read More
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Assemblies Unlimited, Inc.Industries
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434Undisclosed2 - 9 employeesNaperville, ILZakiant, LLC is an AI development company launched in 2014. The team offers Artificial Intelligence and cloud consulting & SI.Read More
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435Undisclosed2 - 9 employeesChicago, ILComplySAM is a big data company located in Chicago, Illinois. They provide BI & big data consulting & SI and Cybersecurity.Read More
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436$5,000+10 - 49 employeesChicago, ILUFlow Decision Engine, a graphic design agency, offer Graphic Design and cloud consulting & SI. They were founded in 2020.Read More
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437Undisclosed10 - 49 employeesGlenview, ILDeeta Analytics, an IT managed services company, is headquartered in Glenview, Illinois. They provide IT managed services and E-Commerce Development and were established in 2015.Read More
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438Undisclosed10 - 49 employeesLombard, ILBased in Lombard, Illinois, Imminent is a CRM consulting and SI and Marketing Strategy company. They specialize in CRM consulting and SI and Marketing Strategy.Read More
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439Undisclosed10 - 49 employeesChicago, ILEclipse Telecom is a small answering service in Chicago, Illinois. Their services include Call Center Services and unified communications consulting & SI.Read More
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440Undisclosed10 - 49 employeesBartlett, ILAhava Services, a CRM consulting and SI and mobile app development firm, was founded in 2015. The small team specializes in CRM consulting and SI and Mobile App Development.Read More
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441Undisclosed10 - 49 employeesNaperville, ILBased in Naperville, Illinois, JDK Technologies is a small Cybersecurity company. The team specializes in Cybersecurity and cloud consulting & SI.Read More
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442Undisclosed10 - 49 employeesChicago, ILKnowledgeHound is a Market Research and big data analytics company. Their team is in Chicago, Illinois. The agency offers Market Research and BI & big data consulting & SI.Read More
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443Undisclosed10 - 49 employeesNaperville, ILDecisionTrek, LLC is a data analytics company and AI firm. They are located in Naperville, Illinois and have small team. They focus on BI & big data consulting & SI and Artificial Intelligence.Read More
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444Undisclosed10 - 49 employeesChicago, ILSecureTrust, an IT strategy consulting and Compliance Consulting company, was founded in 2001. The team offers IT strategy consulting and Compliance Consulting and is based in Chicago, Illinois.Read More
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445Undisclosed10 - 49 employeesWestmont, ILSilvon Software is a Market Research company established in 1987. The agency specializes in Market Research and BI & big data consulting & SI, and is small.Read More
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446$10,000+10 - 49 employeesOak Brook, ILAreaClicks is a social media marketing company founded in 2004. The team specializes in Social Media Marketing and Content Marketing.Read More
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447$1,000+50 - 249 employeesArlington Heights, ILKAT TECH SYSTEMS INC is a software development company in Arlington Heights, Illinois and Hopkins, Minnesota. The team specializes in Custom Software Development and Web Development.Read More
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448$5,000+1,000 - 9,999 employeesChicago, ILZS Associates is an user experience design company. The agency is based in Chicago, Illinois and New York, New York. Their services include UX/UI Design and cloud consulting & SI.Read More
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449Undisclosed50 - 249 employeesChicago, ILGibson Consulting Group, LLC is an unified communications consulting & SI company. They offer unified communications consulting & SI and Business Consulting and are headquartered in Chicago, Illinois.Read More
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450Undisclosed50 - 249 employeesChicago, ILNitel is an answering service company. They provide Call Center Services and IT managed services and are in Chicago, Illinois.Read More
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Schedule ConsultationMost Reviewed IT Services Company in Illinois
Check out an IT Services Company in Illinois with the most new reviews in the past 12 months.
IT Services Company
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