Top 100 IT Services Companies in Illinois
The Best of May 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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241Undisclosed2 - 9 employeesGurnee, ILIT managed services company IntelliSupport was launched in 2023. Headquartered in Gurnee, Illinois, the team offers IT managed services and IT strategy consulting.Read More
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242$5,000+10 - 49 employeesSchaumburg, ILEstablished in 1994, Temple-IT is a Cybersecurity company. The team offers Cybersecurity and IT managed services.Read More
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243Undisclosed10 - 49 employeesBloomington, ILIT managed services company STL Business & Technology Solutions is in Bloomington, Illinois. They focus on IT managed services and Cybersecurity and were launched in 1992.Read More
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244Undisclosed10 - 49 employeesNaperville, ILSundogIT, Inc. Is a Back Office Outsourcing company. They are in Naperville, Illinois and have small team of experts. Their services include Back Office Outsourcing and Call Center Services.Read More
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245$10,000+250 - 999 employeesLincolnshire, ILTechClub Inc is an IT strategy consulting company launched in 2013. The firm specializes in IT strategy consulting and BI & big data consulting & SI.Read More
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246$10,000+10 - 49 employeesArlington Heights, ILLeantegral, a custom software development company, was established in 2009. They are based in Arlington Heights, Illinois and have a small team. Leantegral provides custom software development, other application development, product design, e-commerce development, and more.Read More
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247$1,000+50 - 249 employeesElk Grove Village, ILIn Elk Grove Village, Illinois and McHenry, Illinois, Porte Brown LLC is a midsize Accounting company. Their services include Accounting and cloud consulting & SI.Read More
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248$5,000+10 - 49 employeesWheaton, ILEstablished in 2020, Bonsai Data Solutions, LLC is a small Wheaton, Illinois-based Digital Strategy company. Their services include Digital Strategy and IT strategy consulting.Read More
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249$50,000+10 - 49 employeesAshley, ILProgress Technologies, inc is a small cloud consulting & SI company headquartered in Bethesda, Maryland and Ashley, Illinois. The team focuses on cloud consulting & SI and IT managed services.Read More
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250Undisclosed2 - 9 employeesChicago, ILQuantum Vigilance Cybersecurity Consulting is a Cybersecurity company. Their team is in Chicago, Illinois. The agency offers Cybersecurity and Corporate Training & Coaching.Read More
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251Undisclosed2 - 9 employeesChicago, ILMy-SecureID LLC is a small Chicago, Illinois-based Cybersecurity company. Their services include Cybersecurity.Read More
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252$5,000+10 - 49 employeesChicago, ILLaunched in 1999, Inovus Technologies, a small CRM consulting and SI company, is headquartered in Chicago, Illinois. Their team provides CRM consulting and SI and Business Consulting.Read More
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253$1,000+2 - 9 employeesOak Forest, ILFounded in 2024, Revtek IT Solutions, a small IT managed services company, is in Oak Forest, Illinois. Their team focuses on IT managed services and IT strategy consulting.Read More
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254$5,000+50 - 249 employeesLombard, ILAll Tech Solutions is an IT managed services company. Based in Lombard, Illinois, the team focuses on IT managed services and Cybersecurity.Read More
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255Undisclosed10 - 49 employeesChicago, ILHoplon InfoSec, a Cybersecurity company, was established in 2018. The team provides Cybersecurity and IT managed services.Read More
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256$1,000+2 - 9 employeesEvanston, ILNorthshore Technology Group LLC is a cloud consulting & SI company. Established in 2025, the agency specializes in cloud consulting & SI and IT managed services.Read More
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257Undisclosed2 - 9 employeesChicago, ILAnansi Cyber is a Cybersecurity company founded in 2026. The team provides Cybersecurity and is located in Chicago, Illinois.Read More
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258$10,000+10 - 49 employeesNaperville, ILInspirit Dev is a custom software development company. Founded in 2020, the small company is located in Naperville, Illinois. Their services include Custom Software Development, Web Development, UX/UI Design, cloud consulting & SI, and more.Read More
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259$1,000+2 - 9 employeesChicago, ILKlio Systems, Inc is a small IT managed services company. They provide IT managed services and ERP consulting and SI and were founded in 2015.Read More
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260$100,000+50 - 249 employeesNaperville, ILEgen is an IT strategy consulting company. They were established in 2002 and offer IT strategy consulting and cloud consulting & SI.Read More
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261Undisclosed50 - 249 employeesChicago, ILRead More
ERP consulting and SI company Paro is in Chicago, Illinois. They offer ERP consulting and SI, business consulting, finance & accounting outsourcing (FAO), and accounting and were founded in 2015.
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262$1,000+10 - 49 employeesChicago, ILIT Impact, Inc. Is a software development company. They specialize in Custom Software Development and BI & big data consulting & SI and are headquartered in Chicago, Illinois.Read More
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263Undisclosed50 - 249 employeesLombard, ILPolaris Solutions, LLC is an IT managed services company founded in 2008. The agency provides IT managed services and Custom Software Development.Read More
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264$25,000+50 - 249 employeesPark Ridge, ILPeterson Technology Partners is a Staffing company. Based in Park Ridge, Illinois, their team offers Staffing and Recruiting.Read More
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265$1,000+10 - 49 employeesSpringfield, ILThousandfold Technology Solutions LLP is an UX agency. Their small team is based in Springfield, Illinois and specializes in UX/UI Design and Web Design. The firm was launched in 2014.Read More
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266Undisclosed50 - 249 employeesChicago, ILIT strategy consulting company Access Global Group was founded in 2011. The team provides IT strategy consulting and CRM consulting and SI and is based in Southlake, Texas and Chicago, Illinois.Read More
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267$10,000+50 - 249 employeesRolling Meadows, ILFounded in 2008, Inyxa, a midsize custom software development firm, is in Rolling Meadows, Illinois. Their services include Custom Software Development and ERP consulting and SI.Read More
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268$5,000+50 - 249 employeesMoline, ILFounded in 2004, Genius Business Solutions is a midsize Moline, Illinois-based ERP consulting and SI company. Their team offers ERP consulting and SI and IT staff augmentation.Read More
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269$25,000+50 - 249 employeesChicago, ILFounded in 1991, Strategic Systems International is a custom software development firm. The team specializes in Custom Software Development and Mobile App Development.Read More
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270Undisclosed10 - 49 employeesWarrenville, ILMavent Analytics is an IT strategy consulting company in Warrenville, Illinois. The team focuses on IT strategy consulting 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.
Most Reviewed
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