Top 100 Software Development Companies in Illinois
The Best of September 2026Looking for a top software developer in Illinois?
As the use of mobile and web apps rise, your business’s digital presence becomes even more important. The biggest challenge facing organizations is how they can keep up in the digital world. The best way is to continuously develop up-to-date software that allows your organization to maintain an impactful digital presence.
To assist you in your search for a partner, we’ve compiled this list of the top software development companies in Illinois. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Illinois Software Developers
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$10,000+10 - 49 employeesIrvine, CAKingsmen Digital Ventures, a custom software development company, is in Irvine, California. Established in 2017, the small team offers Custom Software Development, Mobile App Development, UX/UI Design, Web Development, and more.Read More
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is a software development firm. They specialize in Custom Software Development, UX/UI Design, Mobile App Development, Web Design, and more and were established in 2001. Their small team is in Medina, Washington.Read More
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241Undisclosed10 - 49 employeesChampaign, ILSC-B Consulting, Inc. Is a Business Consulting company in Champaign, Illinois. They specialize in Business Consulting and Custom Software Development and were founded in 2008.Read More
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242$25,000+50 - 249 employeesElmhurst, ILSpinutech, a midsize Digital Strategy company, is in Clive, Iowa; Elmhurst, Illinois and Tampa, Florida. They focus on Digital Strategy, Social Media Marketing, Email Marketing, Search Engine Optimization, and more and were established in 2000.Read More
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MasoniteIndustries
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243$1,000+Freelancer employeesLake Zurich, ILRead More
Cyber Haven Programming is a custom software development company launched in 2017. The company specializes in custom software development, ux/ui design, application testing, web design, and more and has a small team.
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244$5,000+50 - 249 employeesChicago, ILTechAvidus, an AI company, was founded in 2016. Their midsize team is headquartered in Chicago, Illinois; West Haven, Connecticut; Villingen-Schwenningen, Germany and Gandhinagar, India. The agency specializes in Artificial Intelligence, AI Consulting, Custom Software Development, Web Development, and more.Read More
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245Undisclosed1,000 - 9,999 employeesOrland Park, ILEstablished in 1996, Version 1 is a large New York, New York-based cloud consulting & SI company. Their team offers cloud consulting & SI and Custom Software Development.Read More
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246$10,000+10 - 49 employeesOak Park, ILRead More
Uptic IO LLC is an Oak Park, Illinois-based DevOps Managed Services company. They focus on DevOps Managed Services, Enterprise App Modernization, cloud consulting & SI, Custom Software Development, and more and were launched in 2017.
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247$5,000+250 - 999 employeesChicago, ILEC Innovations is a Translation company. They focus on Translation and Custom Software Development and are located in Beijing, China and Chicago, Illinois.Read More
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248Undisclosed250 - 999 employeesMoline, ILSedona Technologies, a software development firm, was founded in 1986. The team focuses on Custom Software Development and Business Consulting.Read More
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249Undisclosed250 - 999 employeesChicago, ILThoma Bravo is a software development company. They are in Chicago, Illinois and London, England and have midsize team. Their team offers Custom Software Development and Business Consulting.Read More
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250$50,000+10 - 49 employeesCicero, ILINTERKIT is an app development company launched in 2020. The company offers mobile app development, ux/ui design, custom software development, e-commerce development, and more and has a small team. The company is in Bishkek, Kyrgyzstan.Read More
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Bank KompanionIndustries
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251Undisclosed50 - 249 employeesTinley Park, ILEstablished in 1991, ProviNET Solutions, a midsize software development firm, is located in Tinley Park, Illinois. Their services include Custom Software Development and cloud consulting & SI.Read More
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252Undisclosed50 - 249 employeesChicago, ILSoliant Consulting is a software development firm headquartered in Chicago, Illinois and Devon, Pennsylvania. Their services include Custom Software Development and cloud consulting & SI.Read More
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253$5,000+50 - 249 employeesBloomington, ILSPARK Business Works is a midsize software development firm established in 2017. Their team offers Custom Software Development, Web Development, Mobile App Development, Web Design, and more. The agency is in Kalamazoo, Michigan; Grand Rapids, Michigan; Houston, Texas and Bloomington, Illinois.Read More
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254$1,000+Freelancer employeesRiver Forest, ILRead More
Other IT consulting and SI company Netzant Technology LLC is located in River Forest, Illinois. The small team focuses on other IT consulting and SI, custom software development, web development, mobile app development, and more and was launched in 2007.
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255Undisclosed10 - 49 employeesWarrenville, ILIConsultUS is a small Warrenville, Illinois-based custom software development firm. Their services include Custom Software Development and IT staff augmentation.Read More
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256Undisclosed10 - 49 employeesMontgomery, ILCRM consulting and SI company Development Consulting Partners, LLC offers CRM consulting and SI and Custom Software Development. They are based in Montgomery, Illinois.Read More
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257Undisclosed10 - 49 employeesOttawa, ILDigisperts Technology Company Limited is a Market Research company. Founded in 2019, the team focuses on Market Research, Social Media Marketing, Custom Software Development, Web Development, and more. Their small agency is Agege, Nigeria-based.Read More
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258$10,000+250 - 999 employeesItasca, ILCompassMSP, an IT managed services company, was established in 1986. Their midsize team is based in Hartford, Connecticut; Tarrytown, New York; New York, New York and Kent, Washington. Their services include IT managed services, Cybersecurity, and Custom Software Development.Read More
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259Undisclosed10 - 49 employeesChicago, ILRead More
Mediafly is a software development firm. Their small team is in Chicago, Illinois. Their team offers custom software development.
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260Undisclosed2 - 9 employeesChicago, ILT98 is a small software development firm established in 1998. Their services include Custom Software Development and IT staff augmentation.Read More
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261$25,000+10 - 49 employeesBolingbrook, ILAl Rafay Consulting is a cloud consulting & SI company. The team provides cloud consulting & SI and Artificial Intelligence, and the agency is based in Bolingbrook, Illinois and Karachi, Pakistan.Read More
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262$25,000+10 - 49 employeesArlington Heights, ILOptimal Design, an IoT development company, was established in 1997. The firm focuses on IoT development and Custom Software Development.Read More
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263$5,000+10 - 49 employeesChicago, ILHeadquartered in Chicago, Illinois, ConnectMedia Ventures is a small custom software development firm. The team focuses on Custom Software Development and Mobile App Development.Read More
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264Undisclosed10 - 49 employeesChicago, ILAleysian is a small CRM consulting and SI company. Established in 2004, the team specializes in CRM consulting and SI and Custom Software Development.Read More
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265Undisclosed50 - 249 employeesChicago, ILThe William Everett Group is a software development company. Based in Chicago, Illinois, the team specializes in Custom Software Development and ERP consulting and SI.Read More
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266Undisclosed50 - 249 employeesScott Air Force Base, ILCybersecurity company UNCOMN was established in 2011. The team focuses on Cybersecurity and Custom Software Development.Read More
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267Undisclosed10 - 49 employeesWheaton, ILRead More
PerByte, an IT strategy consulting and software development firm, is headquartered in Wheaton, Illinois. The small team specializes in IT strategy consulting and custom software development and was founded in 2011.
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268$5,000+2 - 9 employeesChicago, ILFortivex, a web design agency, is headquartered in Chicago, Illinois. Founded in 2025, the small team provides Web Design, Web Development, UX/UI Design, Product Design, and more.Read More
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269$10,000+10 - 49 employeesArthur, ILUptarget Co, an e-commerce development company, was established in 2017. They are based in Arthur, Illinois and Cherkasy, Ukraine and have a small team. Uptarget Co specializes in E-Commerce Development, Web Development, Custom Software Development, and Mobile App Development.Read More
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270$10,000+50 - 249 employeesRolling Meadows, ILEnlightVision Technologies Pvt Ltd, a software development firm, is in Ahmedabad, India and Rolling Meadows, Illinois. The team offers Custom Software Development and Web Development.Read More
Industries
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