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.
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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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121$5,000+250 - 999 employeesChicago, ILNetrix, LLC is an IT managed services company. They offer IT managed services and Custom Software Development and were founded in 1989.Read More
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122$1,000+10 - 49 employeesChicago, ILSmall IT managed services company Steadfast Networks, is in Chicago, Illinois. Their services include IT managed services and cloud consulting & SI.Read More
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Prosite Business Solutions -
123Undisclosed50 - 249 employeesMount Prospect, ILCrestwood Associates is a CRM consulting and SI company. The Mount Prospect, Illinois-based company was founded in 1998. Their services include CRM consulting and SI and ERP consulting and SI.Read More
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124Undisclosed50 - 249 employeesChicago, ILSonoma Partners is a midsize CRM consulting and SI company founded in 2001. Their team specializes in CRM consulting and SI and cloud consulting & SI.Read More
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125$5,000+10 - 49 employeesO'Fallon, ILSmall Cybersecurity company Alpine Security, is in O'Fallon, Illinois. The team focuses on Cybersecurity.Read More
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126Undisclosed250 - 999 employeesChicago, ILNetrix LLC, an IT strategy consulting company, was launched in 1989. The team provides IT strategy consulting and cloud consulting & SI and is located in Chicago, Illinois.Read More
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127$10,000+250 - 999 employeesChicago, ILSDI Presence is an IT managed services company. Founded in 2016, the team focuses on IT managed services and IT strategy consulting.Read More
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128Undisclosed50 - 249 employeesElk Grove Village, ILCacheFly is an other IT consulting and SI company. The Elk Grove Village, Illinois-based team focuses on other IT consulting and SI and IT strategy consulting.Read More
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129$5,000+50 - 249 employeesLisle, ILCorterra Solutions is an ERP consulting and SI company. They are located in Lisle, Illinois, and their services include ERP consulting and SI and IT managed services.Read More
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130Undisclosed10 - 49 employeesChicago, ILCloudbakers is a small Chicago, Illinois-based unified communications consulting & SI company. Their services include unified communications consulting & SI and cloud consulting & SI.Read More
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131$1,000+10 - 49 employeesNorthfield, ILCIO Landing, a small IT managed services company, is headquartered in Northfield, Illinois and Chicago, Illinois. The team focuses on IT managed services and ECM consulting and SI.Read More
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132$5,000+50 - 249 employeesChicago, ILRKON Technologies is an IT managed services company headquartered in Chicago, Illinois. The team provides IT managed services and IT strategy consulting.Read More
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133$10,000+250 - 999 employeesChicago, ILClarity Insights, a business intelligence company, was established in 2008. The midsize team offers BI & big data consulting & SI and cloud consulting & SI.Read More
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134$1,000+250 - 999 employeesWarrenville, ILTekLink International Inc. Is a Warrenville, Illinois-based data analytics company. Founded in 1998, the team provides BI & big data consulting & SI and IT strategy consulting.Read More
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135$100,000+50 - 249 employeesChicago, ILFounded in 2000, Discover The Power of Your Data is a data analytics company and Business Consulting company. Their team offers BI & big data consulting & SI and Business Consulting.Read More
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136$25,000+250 - 999 employeesHoffman Estates, ILSoftweb Solutions is a business intelligence company founded in 2004. They are based in Plano, Texas and Hoffman Estates, Illinois and have a midsize team. Their services include BI & big data consulting & SI, Artificial Intelligence, CRM consulting and SI, AI Consulting, and more.Read More
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T-Mobile Fujifilm Alliant Credit Union Bosch RexrothIndustries
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137Undisclosed50 - 249 employeesSchaumburg, ILAscent Innovations LLC is an ERP consulting and SI company. Founded in 2009, the company focuses on ERP consulting and SI and Cybersecurity.Read More
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138$10,000+10 - 49 employeesDowners Grove, ILAqueity is an IT managed services company headquartered in Downers Grove, Illinois. Their services include IT managed services and Cybersecurity.Read More
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139Undisclosed10 - 49 employeesChicago, ILBlack Diamond Solutions is an IT managed services company. Launched in 2004, the company is headquartered in Chicago, Illinois. Their team provides IT managed services and cloud consulting & SI.Read More
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140$10,000+10 - 49 employeesChicago, ILCatalyst Consulting group, a software development firm, is in Chicago, Illinois. Founded in 1992, the team provides Custom Software Development and IT managed services.Read More
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141Undisclosed10 - 49 employeesChicago, ILLogan Consulting is a small CRM consulting and SI company in Chicago, Illinois. Their services include CRM consulting and SI and ERP consulting and SI.Read More
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142$1,000+10 - 49 employeesWoodstock, ILLeadingIT is a small Cybersecurity company. They offer Cybersecurity and IT strategy consulting and were launched in 2010.Read More
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143$5,000+50 - 249 employeesLombard, ILLaunched in 1996, DYOPATH is an IT managed services company. Their team specializes in IT managed services and IT strategy consulting.Read More
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144$5,000+10 - 49 employeesChicago, ILNet Works Consulting Resources is a Chicago, Illinois-based IT managed services company. They offer IT managed services and Cybersecurity and were established in 1997.Read More
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145Undisclosed50 - 249 employeesChicago, ILMessina Group Consulting is an IT strategy consulting company founded in 2013. Their services include IT strategy consulting and Business Consulting.Read More
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146$1,000+1,000 - 9,999 employeesSchaumburg, ILMotherson Sumi Infotech and Designs (MSID US Inc.) is a cloud consulting & SI and other IT consulting and SI company. Their team focuses on cloud consulting & SI.Read More
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147$5,000+50 - 249 employeesSchaumburg, ILFounded in 1955, Pulse Technology is a midsize Schaumburg, Illinois-based IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
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148Undisclosed10 - 49 employeesBolingbrook, ILAl Rafay Consulting is a small Bolingbrook, Illinois-based IT strategy consulting and data analytics company. The team focuses on IT strategy consulting and BI & big data consulting & SI.Read More
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149$5,000+50 - 249 employeesSkokie, ILGreat Computer Solutions is an IT managed services company. They are in Skokie, Illinois and have midsize team of experts. Their services include IT managed services and IT strategy consulting.Read More
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150Undisclosed10 - 49 employeesChicago, ILNerdsToGo Chicago Downtown is a Chicago, Illinois-based IT strategy consulting company. They focus on IT strategy consulting and Cybersecurity.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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