Top 100 IT Services Companies in Illinois
The Best of August 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.
Jump to Most Reviewed Companies
List of the Best Illinois IT Companies
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391Undisclosed250 - 999 employeesLombard, ILMidsize IT strategy consulting company MajorKey Technologies, is based in Lombard, Illinois. The team specializes in IT strategy consulting.Read More
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392Undisclosed250 - 999 employeesLombard, ILColumn Technical Services is an IT strategy consulting company. The Lombard, Illinois-based firm specializes in IT strategy consulting.Read More
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393Undisclosed250 - 999 employeesDeerfield, ILHeadquartered in Deerfield, Illinois, Meridian Group International, Inc. Is a midsize IT strategy consulting company. The team focuses on IT strategy consulting.Read More
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394Undisclosed50 - 249 employeesSt. Charles, ILJIT is an IT strategy consulting company. Founded in 2010, the team focuses on IT strategy consulting. The agency is located in St. Charles, Illinois.Read More
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395Undisclosed50 - 249 employeesPark Ridge, ILRadian Compliance, LLC is an IT strategy consulting company. They provide IT strategy consulting and were established in 1983.Read More
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396Undisclosed50 - 249 employeesItasca, ILIn Itasca, Illinois, Andhus Technologies is a midsize mobile app development firm. Their services include Mobile App Development and Application Testing.Read More
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397Undisclosed50 - 249 employeesPark Ridge, ILAQL Technologies is a business intelligence company. Their team is in Park Ridge, Illinois and specializes in BI & big data consulting & SI.Read More
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398Undisclosed50 - 249 employeesChicago, ILMikan is a big data company and cloud consulting & SI company launched in 2008. Their team specializes in BI & big data consulting & SI and cloud consulting & SI.Read More
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399Undisclosed50 - 249 employeesHinsdale, ILLaunched in 1986, Syscon Inc. Is a midsize big data company. Their services include BI & big data consulting & SI.Read More
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400Undisclosed50 - 249 employeesHoffman Estates, ILBeacon Consulting Group, Inc is a midsize data analytics company and mobile app development firm. They specialize in BI & big data consulting & SI and Mobile App Development and were launched in 2005.Read More
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401Undisclosed50 - 249 employeesBloomington, ILBased in Bloomington, Illinois, GENINVO is a midsize cloud consulting & SI company. The team provides cloud consulting & SI and UX/UI Design.Read More
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402Undisclosed1,000 - 9,999 employeesChicago, ILSphera is a big data company based in Chicago, Illinois. Launched in 2016, the team focuses on BI & big data consulting & SI and Compliance Consulting.Read More
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403Undisclosed1,000 - 9,999 employeesDowners Grove, ILTanium is a big data company. Their team is located in Kirkland, Washington and Downers Grove, Illinois and specializes in BI & big data consulting & SI and Cybersecurity.Read More
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404Undisclosed50 - 249 employeesJerseyville, ILVerve Industrial, a data analytics company, was established in 1994. The company specializes in BI & big data consulting & SI and Cybersecurity, and is midsize.Read More
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405Undisclosed50 - 249 employeesChicago, ILCyberMaxx is a big data company. Located in Chicago, Illinois, their team offers BI & big data consulting & SI and Cybersecurity.Read More
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406Undisclosed10 - 49 employeesChicago, ILUncommonX is a Chicago, Illinois-based Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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407Undisclosed10 - 49 employeesChicago, ILNorthStar, a business intelligence company, was established in 2006. The team offers BI & big data consulting & SI and Cybersecurity.Read More
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408Undisclosed50 - 249 employeesChicago, ILLaunched in 1987, Primera Engineers, Ltd. Is a data analytics company. The midsize team provides BI & big data consulting & SI.Read More
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409Undisclosed10 - 49 employeesChicago, ILBehaim ITS Inc. Is a data analytics company. Their small team of employees is located in Chicago, Illinois and Chicago, Illinois. Their team specializes in BI & big data consulting & SI.Read More
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410Undisclosed2 - 9 employeesBloomingdale, ILIT managed services company TechVoo® provides IT managed services and IT strategy consulting. They are in Bloomingdale, Illinois.Read More
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411Undisclosed10 - 49 employeesChicago, ILMicro-Tech USA, an IT strategy consulting company, was established in 1989. They focuses on IT strategy consulting and cloud consulting & SI.Read More
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412Undisclosed10 - 49 employeesBurr Ridge, ILIT managed services company CSC Consulting Group is headquartered in Burr Ridge, Illinois. Launched in 1988, the team focuses on IT managed services and IT strategy consulting.Read More
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413Undisclosed250 - 999 employeesChicago, ILK2 Services is a midsize IT strategy consulting and IT managed services company. Established in 1985, the team specializes in IT strategy consulting and IT managed services.Read More
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414Undisclosed10 - 49 employeesChicago, ILFounded in 2013, Zivra, LLC, a small IT strategy consulting company, is headquartered in Chicago, Illinois. Their team offers IT strategy consulting and cloud consulting & SI.Read More
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415Undisclosed10 - 49 employeesChicago, ILLaunched in 2009, LevCo Technologies, Inc., a small Cybersecurity company, is located in Vero Beach, Florida and Chicago, Illinois. Their services include Cybersecurity.Read More
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416Undisclosed10 - 49 employeesLockport, ILJK Technology Solutions is a small Cybersecurity and IT managed services company based in Lockport, Illinois and Hoffman Estates, Illinois. The team provides Cybersecurity and IT managed services.Read More
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417Undisclosed50 - 249 employeesNaperville, ILEnnVee is a CRM consulting and SI company. The team specializes in CRM consulting and SI and ERP consulting and SI and is headquartered in Naperville, Illinois.Read More
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418Undisclosed10 - 49 employeesSouth Holland, ILFounded in 2019, Green Electronic Solutions Inc. Is an IT managed services company. The small team specializes in IT managed services.Read More
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419Undisclosed50 - 249 employeesWaukegan, ILARCOA is a Cybersecurity company founded in 1989. The team focuses on Cybersecurity and IT managed services.Read More
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420Undisclosed50 - 249 employeesChicago, ILQarik, an Egen Company is a cloud consulting & SI company. Their midsize team is in Belfast, Northern Ireland and Chicago, Illinois. Their services include cloud consulting & SI and Generative AI.Read More
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Check out an IT Services Company in Illinois with the most new reviews in the past 12 months.
Most Reviewed
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