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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$10,000+50 - 249 employeesL'viv, UkraineRead More
Founded in 2019, Uinno is an artificial intelligence firm. The midsize team specializes in Artificial Intelligence, Custom Software Development, Low/No Code Development, UX/UI Design, and more. The company is based in L'viv, Ukraine; Tallinn, Estonia; Kingston upon Thames, England and Zaporizhzhia, Ukraine.
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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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241$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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242$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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243$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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244Undisclosed2 - 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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245Undisclosed2 - 9 employeesChicago, ILMy-SecureID LLC is a small Chicago, Illinois-based Cybersecurity company. Their services include Cybersecurity.Read More
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246$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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247$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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248$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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249Undisclosed10 - 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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250$5,000+10 - 49 employeesSchaumburg, ILNableIT is an IT strategy consulting company in Schaumburg, Illinois. They specialize in IT strategy consulting and Cybersecurity and were established in 2019.Read More
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251$10,000+50 - 249 employeesChicago, ILLaunched in 2013, Taction Software LLC is a midsize mobile application development company. Their team specializes in Mobile App Development, Custom Software Development, Artificial Intelligence, BI & big data consulting & SI, and more. The firm is headquartered in Chicago, Illinois; Cheyenne, Wyoming; Noida, India and Austin, Texas.Read More
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First National BankIndustries
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252$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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253Undisclosed50 - 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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254$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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255Undisclosed50 - 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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256$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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257Undisclosed50 - 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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258$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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259$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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260$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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261Undisclosed10 - 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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262$1,000+10 - 49 employeesGlenview, ILArystech is a cloud consulting & SI company launched in 2022. The firm offers cloud consulting & SI and IT managed services.Read More
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263$1,000+10 - 49 employeesChicago, ILAccuSights is a Cybersecurity company launched in 2025. The team offers Cybersecurity and Compliance Consulting.Read More
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264Undisclosed10 - 49 employeesChicago, ILScalesology is a big data company. They are based in Chicago, Illinois and Denver, Colorado, and their services include BI & big data consulting & SI and Custom Software Development.Read More
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265$25,000+2 - 9 employeesNaperville, ILVision Capital Management, an IT strategy consulting company, is located in Naperville, Illinois. The team specializes in IT strategy consulting and cloud consulting & SI.Read More
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266$5,000+2 - 9 employeesGlenview, ILBig data analytics company MindValley Solutions specializes in BI & big data consulting & SI and IT strategy consulting. They are located in Glenview, Illinois.Read More
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267$10,000+50 - 249 employeesChicago, ILDMC, Inc., a custom software development firm, is based in Chicago, Illinois and Somerville, Massachusetts. The team provides Custom Software Development and CRM consulting and SI.Read More
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3MIndustries
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268Undisclosed2 - 9 employeesAurora, ILUmbrella Security is a Cybersecurity and Building Security Services company. They are in Aurora, Illinois and have small team. They focus on Cybersecurity and Building Security Services.Read More
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269Undisclosed10 - 49 employeesNaperville, ILEQ Technology Group, Inc. Is an IT managed services company. They are in Naperville, Illinois, and their services include IT managed services and IT strategy consulting.Read More
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270$1,000+10 - 49 employeesSchaumburg, ILAelias Consulting Inc is an IT strategy consulting company founded in 2021. The company specializes in IT strategy consulting and BI & big data consulting & SI.Read More
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