Top 100 IT Services Companies in Illinois
The Best of March 2026Looking 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.
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List of the Best Illinois IT Companies
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601Undisclosed50 - 249 employeesHoffman Estates, ILLaunched in 2002, DivIHN Integration Inc is an IT managed services and Cybersecurity company. Headquartered in Hoffman Estates, Illinois, the team specializes in IT managed services and Cybersecurity.Read More
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602Undisclosed2 - 9 employeesLombard, ILSMB Advantage, a small IT managed services and Cybersecurity company, is headquartered in Lombard, Illinois. The team provides IT managed services and Cybersecurity.Read More
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603Undisclosed2 - 9 employeesChicago, ILChicago ComputerLand is a small IT managed services and other IT consulting and SI company in Chicago, Illinois. Their services include IT managed services and other IT consulting and SI.Read More
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604Undisclosed2 - 9 employeesCrystal Lake, ILIT managed services and Cybersecurity company Computer Pros LLC was launched in 2011. The small team provides IT managed services and Cybersecurity.Read More
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605Undisclosed2 - 9 employeesBloomingdale, ILNelsons4 is an IT managed services and Cybersecurity company. Founded in 1998, the firm is based in Bloomingdale, Illinois. Their team offers IT managed services and Cybersecurity.Read More
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606Undisclosed2 - 9 employeesCarpentersville, ILPersonal PC Tech, a small IT managed services and Cybersecurity company, is based in Carpentersville, Illinois. The team focuses on IT managed services and Cybersecurity.Read More
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607Undisclosed2 - 9 employeesWillowbrook, ILCatalyst Network Services, a small IT managed services and Cybersecurity company, is located in Willowbrook, Illinois. Their services include IT managed services and Cybersecurity.Read More
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608Undisclosed10 - 49 employeesHomer Glen, ILIT managed services and Cybersecurity company AJ Technology Company is located in Homer Glen, Illinois. The team focuses on IT managed services and Cybersecurity.Read More
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609Undisclosed2 - 9 employeesLombard, ILHy-Tek, a small IT managed services company, is based in Lombard, Illinois. Their services include IT managed services and cloud consulting & SI.Read More
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610Undisclosed250 - 999 employeesSchaumburg, ILIT managed services and other IT consulting and SI company Next Generation Technology is located in Schaumburg, Illinois. The team offers IT managed services and other IT consulting and SI.Read More
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611Undisclosed2 - 9 employeesDecatur, ILNetwork Solutions Unlimited is an IT managed services company located in Decatur, Illinois. They focus on IT managed services and were founded in 2013.Read More
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612Undisclosed2 - 9 employeesDecatur, ILDecatur Computers Inc. Is an IT managed services company in Decatur, Illinois. They focus on IT managed services and were launched in 2001.Read More
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613Undisclosed10 - 49 employeesHanover Park, ILFounded in 2008, Soft Teches Inc is an IT strategy consulting company. The team focuses on IT strategy consulting and IT staff augmentation.Read More
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614Undisclosed2 - 9 employeesWheeling, ILYZ Square is a small IT strategy consulting company in Wheeling, Illinois. The team specializes in IT strategy consulting and cloud consulting & SI.Read More
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615Undisclosed2 - 9 employeesChampaign, ILSmall cloud consulting & SI and IT managed services company Practical Technology Services, is based in Champaign, Illinois. The team provides cloud consulting & SI and IT managed services.Read More
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616Undisclosed2 - 9 employeesChampaign, ILSmall cloud consulting & SI and IT managed services company CloudShark 360, is headquartered in Champaign, Illinois. Their services include cloud consulting & SI and IT managed services.Read More
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617Undisclosed2 - 9 employeesMundelein, ILFounded in 2006, Cloudnet360 is a CRM consulting and SI company. Their team provides CRM consulting and SI.Read More
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618Undisclosed2 - 9 employeesGurnee, ILIT managed services and IT strategy consulting company Partner Tek, Inc. Was established in 2008. The firm provides IT managed services and IT strategy consulting.Read More
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619Undisclosed2 - 9 employeesSpringfield, ILNovanis I.T. Solutions is a small IT managed services and Cybersecurity company located in Springfield, Illinois. Their services include IT managed services and Cybersecurity.Read More
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620Undisclosed10 - 49 employeesSpringfield, ILLocated in Springfield, Illinois, BLH Computers is a small IT managed services and Cybersecurity company. Their services include IT managed services and Cybersecurity.Read More
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621Undisclosed10 - 49 employeesSpringfield, ILRexx Battery Company is a small Springfield, Illinois-based IT managed services and Cybersecurity company. Their services include IT managed services and Cybersecurity.Read More
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622Undisclosed2 - 9 employeesGlen Ellyn, ILSchoening Technology Group Inc is an IT strategy consulting company. The Glen Ellyn, Illinois-based agency was established in 2012. Their team specializes in IT strategy consulting.Read More
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623Undisclosed2 - 9 employeesCarbondale, ILSINC / SI Network Consultants is a cloud consulting & SI and IT managed services company. The Carbondale, Illinois-based team offers cloud consulting & SI and IT managed services.Read More
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624Undisclosed2 - 9 employeesElgin, ILFerrum Technology Services is an IT managed services company. Their small team is located in Elgin, Illinois. Their services include IT managed services.Read More
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625Undisclosed2 - 9 employeesElgin, ILSynset Technologies is a small Elgin, Illinois-based IT managed services company. The team provides IT managed services.Read More
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626Undisclosed2 - 9 employeesElgin, IL79 Ratio is an Elgin, Illinois-based IT managed services company. They offer IT managed services.Read More
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627Undisclosed2 - 9 employeesElgin, ILRGS IT Consulting is an IT managed services company located in Elgin, Illinois. Their services include IT managed services.Read More
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628Undisclosed2 - 9 employeesElgin, ILLocated in Elgin, Illinois, Pro Technologies, Inc. Is a small IT managed services company. Their services include IT managed services.Read More
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629Undisclosed2 - 9 employeesElgin, ILModern Business Computing is an IT managed services company. The Elgin, Illinois-based firm was founded in 1992. Their team provides IT managed services.Read More
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630Undisclosed10 - 49 employeesTinley Park, ILSoftware Tech Enterprises, Inc. Is a small custom software development firm in Tinley Park, Illinois. The team provides Custom Software Development and BI & big data consulting & SI.Read More
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Check out an IT Services Company in Illinois with the most new reviews in the past 12 months.
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