Top 50 Application Modernization Companies in Illinois

Software development firm SPR was established in 1973. The midsize team specializes in custom software development, enterprise app modernization, cloud consulting & SI, ux/ui design, and more. The company is headquartered in Chicago, Illinois and Milwaukee, Wisconsin.

Compoze Labs is a product-focused software development shop based in Minneapolis. The company, founded in 2018, has more than ten employes and provides custom software development, mobile app development, IT managed services, and web development to enterprise and smaller-sized companies.

Alligatortek is a software company headquartered in Chicago with an office in Oakbrook Terrace, Ill. Since 1993, their team of 59 has lent its services in custom software development, mobile app development, and cloud consulting & SI. They specialize in Azure, and have experience in working with frameworks such as .NET, AngularJS, and React Native.

Since 2014 web and mobile app development agency LakeView Labs has served clients ranging from startups to Fortune 500 companies. The small team of fewer than 10 applies its skill in mobile app, software, web, and e-commerce development to help these clients build engaging digital products.

Programmers Beyond IT is a software development firm. Their midsize team is in Chicago, Illinois. The firm focuses on custom software development, enterprise app modernization, BI & big data consulting & SI, web development, and more.

Insyte Consultancy Services is a software company of around 10 employees. Established in 2011, their headquarters is in Oak Park, Ill. They offer services in mobile app development, wearable app development, custom software development, and enterprise app modernization.

Captivix, an IT strategy consulting company, was established in 2011. The small Schaumburg, Illinois-based team focuses on IT strategy consulting, ERP consulting and SI, custom software development, digital strategy, and more.

Kin + Carta is a tech-centered management consultancy based in Chicago. Founded in 1964, they also have offices in London, San Francisco, New York, and Singapore. Their team of approximately 3,000 focuses primarily on enterprise clients in the financial services and health care fields. Services include mobile app development, cloud consulting, and more.

ES99 is a branding company launched in 1999. They are in Chicago, Illinois and have a midsize team. Their services include branding, advertising, direct marketing, market research, and more.

Hoff & Mazor is a midsize application development firm. They provide mobile app development, enterprise app modernization, wearable app development, and other application development and were established in 2015. The firm is headquartered in Casper, Wyoming.

CIeNET Technologies is a software development firm. Established in 2000, the large agency is based in Beijing, China and Oak Brook, Illinois. Their team offers custom software development, enterprise app modernization, IT managed services, and application testing.

Kumo Partners is a small enterprise app modernization company established in 2020. Their team provides enterprise app modernization, IT strategy consulting, robotics process automation, and other application development. The agency is based in Chicago, Illinois.

Headquartered in Chicago, Forte Group is an international IT firm with offices in Belarus and Ukraine. With over 250 employees, the agency specializes in web development, e-commerce development, and application testing in addition to other software and app services. 

Bitovi, an enterprise app modernization company, is located in Libertyville, Illinois. The company focuses on enterprise app modernization, custom software development, IT staff augmentation, e-commerce development, and more and has a midsize team.The company was established in 2007.

Integrative Systems is an Itasca, Illinois-based software development company. The midsize firm was founded in 2001. Their services include custom software development, enterprise app modernization, non-voice bpo/back office services, voice services, and more.

Grape Up is a tech consulting company based in Cracow, Poland with no more than 250 employees. Founded in 2006, they provide custom software development, cloud consulting, and IT staff augmentation services for enterprise-level and mid-market clients alike.

Custom software development firm ThoughtWorks Brazil was founded in 1993. The company focuses on custom software development, ux/ui design, and digital strategy and has a large team. The company is in Belo Horizonte, Brazil.

Ai2, a custom software development firm, was launched in 1982. They are headquartered in Chicago, Illinois and have a small team. Ai2 provides custom software development, enterprise app modernization, e-commerce development, and mobile app development.

PSC Group is a midsize custom software development company located in Schaumburg, Illinois. They provide custom software development, enterprise app modernization, BI & big data consulting & SI, business consulting, and more and were established in 1990.

10th Magnitude is a midsize IT managed services company. Launched in 2010, the agency is in Chicago, Illinois; Dallas, Texas; New York, New York and Seattle, Washington. Their services include IT managed services, enterprise app modernization, BI & big data consulting & SI, and cloud consulting & SI.

Egen Solutions is a custom software development company. Founded in 2002, the midsize agency is headquartered in Naperville, Illinois. Their services include custom software development, enterprise app modernization, cloud consulting & SI, IT strategy consulting, and more.

Founded in 2013, One Six Solutions is a business intelligence company. The small Chicago, Illinois-based team specializes in BI & big data consulting & SI, enterprise app modernization, cloud consulting & SI, and IT strategy consulting.

Software development firm Dino Consulting was founded in 2014. They are based in Swansea, Illinois and have a small team. Dino Consulting specializes in custom software development, enterprise app modernization, mobile app development, application testing, and more.

Cybersecurity company SCIGON was founded in 2008. They are based in Deerfield, Illinois and have a small team. SCIGON specializes in cybersecurity, enterprise app modernization, IT managed services, and IT strategy consulting.

Giant Star AI is a small UX design company. Headquartered in Deerfield, Illinois, the agency was established in 2022. Their services include ux/ui design, custom software development, enterprise app modernization, web design, and more.

Trinitiii is a custom software development firm. Founded in 2017, the small agency is headquartered in Bloomington, Illinois. Their team specializes in custom software development, cybersecurity, enterprise app modernization, and IT managed services.

Replient, a custom software development company, was established in 2019. The small team offers custom software development, enterprise app modernization, web development, web design, and more. The firm is headquartered in Lincolnshire, Illinois.

WSC, an enterprise app modernization company, was established in 2021. The agency provides enterprise app modernization, IT managed services, custom software development, web development, and more and has a small team.

AptlyLabs Inc is a custom software development company founded in 2018. Their small team is headquartered in South Barrington, Illinois. The company provides custom software development, web development, api development, enterprise app modernization, and more.

Automly App Development Company, a web development firm, was established in 2011. They are headquartered in Chicago, Illinois and Chicago, Illinois and have a small team. Automly App Development Company specializes in web development, custom software development, enterprise app modernization, mobile app development, and more.