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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781Undisclosed2 - 9 employeesDowners Grove, ILSmall custom software development firm O'Neil Communications, Inc., is headquartered in Downers Grove, Illinois. The team focuses on Custom Software Development and Mobile App Development.Read More
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782$10,000+1,000 - 9,999 employeesAlpharetta, GAImproving is a custom software development firm in Plano, Texas and Houston, Texas. They specialize in Custom Software Development and Artificial Intelligence and were launched in 2006.Read More
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783Undisclosed50 - 249 employeesHighland Park, ILConnect International, LLC is a call center company established in 2007. Based in Managua, Nicaragua and Highland Park, Illinois, the team offers Call Center Services and Back Office Outsourcing.Read More
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784$1,000+1,000 - 9,999 employeesBolingbrook, ILCES Limited is a Bolingbrook, Illinois-based cloud consulting & SI company. The team offers cloud consulting & SI and Finance & Accounting Outsourcing (FAO).Read More
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785$5,000+250 - 999 employeesElk Grove Village, ILSummit, formerly Deft is an IT managed services company. Their midsize team is based in Alpharetta, Georgia and Elk Grove Village, Illinois. Their services include IT managed services, IT strategy consulting, and cloud consulting & SI. The company was established in 1999.Read More
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BasecampIndustries
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786Undisclosed250 - 999 employeesNaperville, ILCoreFlex Solutions Inc. Is a CRM consulting and SI company based in Naperville, Illinois and पुणे, India. Launched in 2013, the team focuses on CRM consulting and SI and UX/UI Design.Read More
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787$100,000+250 - 999 employeesChicago, ILRead More
Objective Solutions is a Sao Paulo, Brazil-based. The midsize firm was launched in 1995. Their services include.
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LiferayIndustries
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788$25,000+1,000 - 9,999 employeesChicago, ILRead More
ELEKS is a custom software development firm established in 1991. Their large team is in Tallinn, Estonia; L'viv, Ukraine; Berlin, Germany and Rzeszów, Poland. Their services include Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Cybersecurity, and more.
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BNY Mellon DPD Acino DRAXIndustries
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789Undisclosed250 - 999 employeesForest Park, ILSuyati, a CRM consulting and SI company, is headquartered in Forest Park, Illinois and Kochi, India. The team specializes in CRM consulting and SI and IT managed services.Read More
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790Undisclosed50 - 249 employeesSchaumburg, ILSennovate is a Cybersecurity company. The San Ramon, California-based firm provides Cybersecurity and IT managed services.Read More
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791$50,000+50 - 249 employeesChicago, ILKlika is an UX design agency. They are in Las Vegas, Nevada; Chicago, Illinois and Sarajevo, Bosnia and Herzegovina and have a midsize team. Their services include ux/ui design, BI & big data consulting & SI, cloud consulting & SI, custom software development, and more. The company was founded in 2014.Read More
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792Undisclosed250 - 999 employeesChicago, ILCloudEQ is a midsize IT strategy consulting company based in Novi, Michigan and El Segundo, California. The team provides IT strategy consulting and cloud consulting & SI.Read More
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793Undisclosed50 - 249 employeesChicago, ILXpertTech Inc is a big data analytics company. The Boston, Massachusetts-based company was established in 2002. Their team specializes in BI & big data consulting & SI and IT staff augmentation.Read More
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794Undisclosed250 - 999 employeesChicago, ILMidsize cloud consulting & SI company ComTec Information Systems (IT), is headquartered in Irving, Texas and Chicago, Illinois. The team offers cloud consulting & SI and CRM consulting and SI.Read More
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795$75,000+1,000 - 9,999 employeesDa Nang, VietnamNashTech is a large software development company. The London, England-based company was established in 2000. Their services include Custom Software Development, cloud consulting & SI, Generative AI, Digital Engineering, and more.Read More
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796Undisclosed1,000 - 9,999 employeesSchaumburg, ILFulcrum Digital is a New York, New York-based artificial intelligence development company. The large team focuses on Artificial Intelligence, AI Consulting, Generative AI, ERP consulting and SI, and more. The agency was launched in 1999.Read More
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Picciano and ScahillIndustries
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797Undisclosed250 - 999 employeesChicago, ILRichter LLP is a Business Consulting company launched in 1926. The team specializes in Business Consulting and Accounting.Read More
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798Undisclosed250 - 999 employeesChicago, ILEstablished in 1911, Thompson Hine LLP is a Business Consulting company. The team specializes in Business Consulting and Compliance Consulting.Read More
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799Undisclosed1,000 - 9,999 employeesChicago, ILTeneo is a Business Consulting company. They are located in New York, New York and San Francisco, California and have large team. Their services include Business Consulting and Cybersecurity.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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