Top 100 IT Services Companies in Illinois
The Best of June 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.
List of the Best Illinois IT Companies
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781UndisclosedFreelancer employeesChicago, ILGNS AI LLC is a big data company located in Chicago, Illinois. They focus on BI & big data consulting & SI and Artificial Intelligence and were launched in 2020.Read More
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782Undisclosed2 - 9 employeesChicago, ILIn Chicago, Illinois, Instra.Ai is a Business Consulting company. They specialize in Business Consulting and cloud consulting & SI.Read More
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783Undisclosed2 - 9 employeesChicago, ILAmplify Group is a Recruiting company. The Chicago, Illinois-based agency was established in 2022. Their services include Recruiting and CRM consulting and SI.Read More
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784Undisclosed2 - 9 employeesBelleville, ILEstablished in 2008, The Richland Marketing House is a social media marketing agency. The team focuses on Social Media Marketing and Content Marketing and is headquartered in Belleville, Illinois.Read More
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785Undisclosed2 - 9 employeesMonee, ILBlue Taurus Marketing is a social media marketing agency. They are located in Monee, Illinois and have small team. Their services include Social Media Marketing and Email Marketing.Read More
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786Undisclosed2 - 9 employeesChicago, ILRinger is a Fractional CMO Services company founded in 2016. Their services include Fractional CMO Services and Content Marketing.Read More
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787$50,000+1,000 - 9,999 employeesChicago, IL10Pearls is a custom software development company located in Vienna, Virginia; Medellín, Colombia; New York, New York and San Rafael de Escazú, Costa Rica. The large firm was established in 2004. Their services include Custom Software Development, Mobile App Development, Artificial Intelligence, cloud consulting & SI, and more.Read More
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HughesNetIndustries
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788$5,000+1,000 - 9,999 employeesChicago, ILFounded in 1971, Merkle is a large CRM consulting and SI company. Their team focuses on CRM consulting and SI and Digital Strategy.Read More
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DellIndustries
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789Undisclosed10 - 49 employeesChicago, ILEmpyra is a small Youngstown, Ohio-based IT strategy consulting and IT managed services company. Their services include IT strategy consulting and IT managed services.Read More
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790$1,000+50 - 249 employeesChicago, ILIT managed services company Corporate Technologies was established in 1981. In Eden Prairie, Minnesota; Fargo, North Dakota; San Diego, California and Ada, Michigan, their midsize team focuses on IT managed services, cloud consulting & SI, and Cybersecurity.Read More
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791$50,000+1,000 - 9,999 employeesOakbrook Terrace, ILSynoptek is a large IT managed services company located in Irvine, California; Roseville, California; Boise, Idaho and Denver, Colorado. Founded in 2001, the team focuses on IT managed services, Enterprise App Modernization, cloud consulting & SI, and IT strategy consulting.Read More
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Champion Home ExteriorsIndustries
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792Undisclosed10 - 49 employeesChicago, ILRitain.io is a cloud consulting & SI company. They offer cloud consulting & SI and Application Testing and were founded in 2020. The firm is based in Chicago, Illinois and Porto, Portugal.Read More
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793$10,000+1,000 - 9,999 employeesChicago, ILImproving, an AI development company, was established in 2006. They are in Plano, Texas; Houston, Texas; Minneapolis, Minnesota and Calgary, Canada and have a large team. Improving provides Artificial Intelligence, IT strategy consulting, IT staff augmentation, Custom Software Development, and more.Read More
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794$25,000+1,000 - 9,999 employeesChicago, ILSimform is a cloud consulting & SI company. Founded in 2010, the agency is in Orlando, Florida; Los Angeles, California; Chicago, Illinois and San Francisco, California. The large team specializes in cloud consulting & SI, Artificial Intelligence, Custom Software Development, Enterprise App Modernization, and more.Read More
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RedbullIndustries
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795$50,000+250 - 999 employeesSchaumburg, ILRead More
WEZOM is a custom software development company founded in 1999. The midsize team provides Custom Software Development, IT managed services, Mobile App Development, Artificial Intelligence, and more. The firm is headquartered in Schaumburg, Illinois; Mykolaiv, Ukraine; Kyiv, Ukraine and Kherson, Ukraine.
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AptivIndustries
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796Undisclosed1,000 - 9,999 employeesOak Brook, ILRead More
Quatrro is a business support services company based in Marietta Ga. with four Indian offices in New Delhi, Gurgaon, Mumbai, and Chennai. Founded in 2013, they now have a team of about 2,00 that serves those in the retail, automotive, manufacturing, healthcare, and non-profit industries. They specialize in financial accounting, BI and big data consulting, bookkeeping, finance and accounting outsourcing, and tax preparation, and back-office services.
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797$10,000+250 - 999 employeesRosemont, ILGuidance Software is a Cybersecurity company. Their midsize team is based in Pasadena, California and New York, New York. Their services include Cybersecurity and IT strategy consulting.Read More
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BoxIndustries
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798Undisclosed1,000 - 9,999 employeesChicago, ILFORVIS is an Accounting company established in 1923. Their team offers Accounting and Business Consulting.Read More
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799Undisclosed10 - 49 employeesRolling Meadows, ILSolution Systems is a web design company in Rolling Meadows, Illinois. They offer Web Design and Web Development.Read More
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800Undisclosed1,000 - 9,999 employeesChicago, ILARC Document Solutions is a large Digital Strategy company based in Gainesville, Florida and Costa Mesa, California. The team provides Digital Strategy and IT managed services.Read More
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801Undisclosed2 - 9 employeesChicago, ILHeadquartered in Elkhart, Indiana and Chicago, Illinois, Momentum Marketing Consultants LLC is a small SEO agency. The team focuses on Search Engine Optimization and Web Development.Read More
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802Undisclosed10 - 49 employeesChicago, ILBlockExcel, a small IT strategy consulting company, is headquartered in Harrisonville, Missouri and Chicago, Illinois. Their services include IT strategy consulting and IoT development.Read More
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803Undisclosed1,000 - 9,999 employeesChicago, ILRead More
ValueLabs is a global business technology services and solutions provider based in Hyderabad, India with over 25 offices worldwide in the US, Europe, and Asia. Founded in 1997, ValueLabs' team of over 5,000 employees provides non-voice BPO/back office services and voice/call center capabilities.
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804Undisclosed2 - 9 employeesChicago, ILHeadquartered in Chicago, Illinois, Sea Hawks Solution is a call center service. Founded in 2018, the team provides Call Center Services and Advertising.Read More
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805Undisclosed2 - 9 employeesChicago, ILFounded in 1983, DCMSoft LLC, a small web design agency, is in Chicago, Illinois. Their services include Web Design and Custom Software Development.Read More
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806Undisclosed2 - 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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807$10,000+50 - 249 employeesChicago, ILLocated in Mission, Kansas; Atlanta, Georgia; Dallas, Texas and Nashville, Tennessee, SoftDoes is a Generative AI company. The midsize company was launched in 2019. Their services include Generative AI, AI Consulting, Artificial Intelligence, Custom Software Development, and more.Read More
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FMY OrthodonticsIndustries
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808Undisclosed50 - 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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809$5,000+1,000 - 9,999 employeesChicago, ILInsight Global, a big data analytics company, provides BI & big data consulting & SI and cloud consulting & SI. The firm is located in Atlanta, Georgia and Birmingham, Alabama.Read More
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810$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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