Top 100 Software Development Companies in Illinois

Highland is a digital experience agency based in Chicago. Founded in 1999, the team of about 30 specializes in product strategy, UX/UI design, and custom software development. They work primarily with midmarket to enterprise clients, mainly in the healthcare, financial services, and nonprofit sectors.
 

Caxy Interactive is a web design and development agency located in Chicago, IL. Since 1999, the agency and its team of 10+ specialize in creating better digital experiences for their clients through web development, software development, and enterprise content management services. 

KitelyTech is a full-service technology, design, and development company that's been around since 2009. Headquartered in Chicago, IL, the company is composed of about 10 employees who are skilled in web, software, mobile app, and e-commerce development. Other services include web design and user experience design and SEO.

Tandem (formerly DevMynd) is a strategy, design, and technology company headquartered in Chicago. The company was founded in 2010 and has 37 employees. They work with both mid-market and enterprise businesses. The businesses they work with represent a variety of industries including health care and medical, education, and energy and natural resources. 
 

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.

Based right outside of Chicago, Plego Technologies is a digital agency founded in 2002. Their team of around 20 has expertise in web development, SEO, IT staff augmentation, and software development.

New Peak Solutions is a SharePoint consulting and software solutions company with offices in New York. Founded in 2003, they have two employees specializing in custom software and mobile app development and IT consulting for various clients throughout the United States. Their expertise covers SharePoint, Office 365, ERP and CRM integration, and mobile, custom, and cloud development.

LaunchPad Lab is a web development firm based in Chicago. Founded in 2012, LaunchPad Lab’s team of 17 provides web development and design, mobile app development, and UX/UI design services.

Spark Equation is a software engineering company headquartered in Chicago, with additional offices in Saint Petersburg and Krasnoyarsk, Russia. Founded in 2014, their team of 24 experts provide custom software development, mobile app development, and web development to their clients. 
 

MLP Co is a website development firm founded in 2018. The agency focuses on web development, mobile app development, and custom software development and has a small team. The agency is in Kyiv, Ukraine.

Table XI is a mobile app and custom software developer based in Chicago, IL. Founded in 2002, they are a team of 50 curious minds that specialize in building websites, mobile applications and custom digital experiences for companies ranging from startups to well-known brands.

Web design company Clique Studios is in Chicago, Illinois; Denver, Colorado and Austin, Texas. The midsize team specializes in web design, custom software development, web development, and digital strategy. The firm was founded in 2003.

Pixo is an Urbana, Illinois-based user experience company. Established in 1998, the small team focuses on ux/ui design, graphic design, web development, mobile app development, and more.

Liventus is an e-commerce company based in Northbrook, Ill., with additional locations in Chicago and Bengaluru, India. Founded in 2002, this company has a team of more than 50 employees. Services provided by Liventus include e-commerce development, custom software development, and IT strategy consulting for businesses of all sizes.

Prime TSR is a boutique technology consultancy based in Chicago with a team of 34 experts. Since their founding in 2013, they have provided BI & big data consulting & SI, custom software development, and cloud consulting & SI solutions for clients ranging from startups to enterprises. They are familiar with cloud services such as AWS. Azure, and Google Cloud.

MXOTech is a software development and IT services agency based in Chicago. Established in 2005, they have 29 employees, who provide services like custom software development, IT managed services for their software platforms, and IT strategy consulting.

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.

Located in Chicago, Illinois and Chicago, Illinois, Uniqcli is a IT strategy consulting company. The small firm was founded in 2017. Their services include IT strategy consulting, enterprise app modernization, cloud consulting & SI, business consulting, and more.

Foxbox is a mobile app development company based in Chicago. Founded in 2018, the team of 40 specializes in mobile app development, UX/UI design, and web development. They work with small business and midmarket clients.

Founded in 2012, Vault Innovation Group is a 10+-person team based in Chicago, IL. Their services include mobile app and web development and UX/UI design. They also offer branding and post product launch services.

Neologic Software is an IT company in Northbrook, Ill. Founded in 2018, they have about 4 employees that serve small-business and midmarket clients in a wide range of sectors. Services include custom software development and business consulting.

Graveflex, a web development firm, was established in 2016. The agency offers web development, e-commerce development, ux/ui design, custom software development, and more and has a small team. The agency is based in Chicago, Illinois and Los Angeles, California.

Hristov Development is a Northbrook, Illinois-based software development firm. They offer custom software development, web development, and mobile app development and were launched in 2013.

Launched in 2008, Tekglide is a custom software development company. In Darien, Illinois, their small team focuses on custom software development, e-commerce development, graphic design, web design, and more.

Chicago Software Solutions is a software development and consulting firm with just over 10 employees. The Chicago-based firm has been around since 2000 and has helped various sized clients in different industries with their web development, software development, and mobile app development needs. 

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.

Software development and IT solution company Taction Software was founded in 2013. With headquarters in Cheyenne, Wyo. and an additional office in Noida, India, Taction Software has a team of 36. They offer web development, mobile app, CRM consulting, and system integration services.

Mabbly is a full-service integrated marketing and advertising agency headquartered in Chicago. Founded in 2013, the agency is comprised of fewer than 50 employees and specializes in web design, web development, branding, SEO, digital strategy, and content marketing.

Alpha Efficiency is a technology, marketing, and lifestyle digital magazine as well as a digital solutions agency based in Chicago. The agency, founded in 2010, has a team of more than ten that provides web development, web design, PPC, UX/UI design, and conversion optimization services to various businesses.

Youtech & Associates is an Illinois-based digital marketing and development agency founded in 2002. The approximately 40-member team specializes in web design, digital strategy, software development, and advertising.