Top 100 Software Development Companies in Illinois
The Best of December 2025Looking 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 is a software development firm. Their small team is located in Irvine, California. The firm specializes in Custom Software Development, Mobile App Development, UX/UI Design, E-Commerce Development, and more.Read More
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$25,000+10 - 49 employeesMedina, WAFlower Press Interactive is a small user experience agency launched in 2001. Their team offers UX/UI Design, Mobile App Development, Custom Software Development, Web Development, and more. The company is located in Medina, Washington.Read More
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$10,000+10 - 49 employeesJohannesburg, South AfricaRead More
Mobile application development firm CubeZoo was established in 2011. In Johannesburg, South Africa and London, England, their small team specializes in Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more.
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361$25,000+1,000 - 9,999 employeesChicago, ILRead More
ELEKS is a custom software development firm established in 1991. Their large team is in Tallinn, Estonia; L'viv, Ukraine; Berlin, Germany and Rzeszów, Poland. Their services include Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Cybersecurity, and more.
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BNY Mellon DPD Acino DRAXIndustries
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362$10,000+1,000 - 9,999 employeesAlpharetta, GAImproving is a custom software development firm in Plano, Texas and Houston, Texas. They specialize in Custom Software Development and Artificial Intelligence and were launched in 2006.Read More
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363Undisclosed250 - 999 employeesNaperville, ILCoreFlex Solutions Inc. Is a CRM consulting and SI company based in Naperville, Illinois and पुणे, India. Launched in 2013, the team focuses on CRM consulting and SI and UX/UI Design.Read More
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364$1,000+50 - 249 employeesIndore, IndiaRead More
Idea2App, a custom software development company, is located in San Jose, California and London, United Kingdom. Established in 2020, the midsize team offers custom software development, mobile app development, application management & support, web development, and more.
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365$5,000+50 - 249 employeesChicago, ILApplication development firm Qodestar was established in 2022. They are based in Seattle, Washington; Nashville, Tennessee; New York, New York and Tampa, Florida and have a midsize team. Their services include Mobile App Development, UX/UI Design, Mobile & App Marketing, Product Design, and more.Read More
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366$50,000+50 - 249 employeesChicago, ILKlika is an UX design agency. They are in Las Vegas, Nevada; Chicago, Illinois and Sarajevo, Bosnia and Herzegovina and have a midsize team. Their services include ux/ui design, BI & big data consulting & SI, cloud consulting & SI, custom software development, and more. The company was founded in 2014.Read More
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367Undisclosed250 - 999 employeesOak Brook, ILAspire Systems, an Application Testing company, was launched in 1996. The team focuses on Application Testing and Web Design.Read More
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AppleIndustries
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368Undisclosed50 - 249 employeesChicago, ILIn Chicago, Illinois and Houston, Texas, Quantlab Group is a midsize custom software development firm. The team offers Custom Software Development.Read More
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369Undisclosed1,000 - 9,999 employeesSchaumburg, ILFulcrum Digital is a New York, New York-based artificial intelligence development company. The large team focuses on Artificial Intelligence, AI Consulting, Generative AI, ERP consulting and SI, and more. The agency was launched in 1999.Read More
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Picciano and ScahillIndustries
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370$75,000+1,000 - 9,999 employeesDa Nang, VietnamNashTech is a large software development company. The London, England-based company was established in 2000. Their services include Custom Software Development, cloud consulting & SI, Generative AI, Digital Engineering, and more.Read More
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371$10,000+250 - 999 employeesLombard, ILMagenic is a software development firm. The company is based in St. Louis Park, Minnesota and San Francisco, California. Their team offers Custom Software Development and Mobile App Development.Read More
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DeloitteIndustries
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372Undisclosed250 - 999 employeesChicago, ILMidsize cloud consulting & SI company ComTec Information Systems (IT), is headquartered in Irving, Texas and Chicago, Illinois. The team offers cloud consulting & SI and CRM consulting and SI.Read More
Industries
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