Top 100 IT Services Companies in Illinois

Patel Solutions is a Naperville, Illinois-based IT managed services company. They offer IT managed services, cloud consulting & SI, application management & support, IT strategy consulting, and more and were launched in 2019.

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.

Founded in 1967, Service Specialists Ltd is a HR company. The midsize Canton, Mississippi-based team specializes in HR services, IT managed services, and warehousing & distribution.

Aspiritech is a midsize application testing company. Launched in 2008, the agency is in Evanston, Illinois. Their team specializes in application testing, ux/ui design, BI & big data consulting & SI, corporate training & coaching, and more.

Core Vision IT Solutions is an IT managed services company headquartered in Brookfield, Wisconsin and Palatine, Illinois. The agency offers IT managed services, cybersecurity, cloud consulting & SI, unified communications consulting & SI, and more and has a small team.The agency was established in 2002.

ERP consulting and SI company Paro is in Chicago, Illinois. They offer ERP consulting and SI, business consulting, finance & accounting outsourcing (FAO), and accounting and were founded in 2015.

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. 

Adnet Inc. Is an IT strategy consulting company founded in 1996. Based in Elgin, Illinois, their small team specializes in IT strategy consulting, web design, and web development.

Founded in 2011, EQ Technology Group, Inc. Is a small IT managed services company. Their team offers IT managed services, IT strategy consulting, search engine optimization, web design, and more. The firm is located in Naperville, Illinois.

Echogravity is a Hoffman Estates, Illinois-based marketing strategy company. The small team offers marketing strategy, IT managed services, and web design. The company was established in 2010.

Computing Technology Solutions is an IT managed services and SEO company. The small Riverwoods, Illinois-based agency was established in 2001. Their team provides IT managed services and search engine optimization.

Poepping Stone Bach & Associates, Inc. Is an architectural design company. They are headquartered in Quincy, Illinois and have a small team. Their services include architectural design and IT managed services. The company was founded in 1968.

Aelias Consulting Services is a small cloud consulting & SI company headquartered in Schaumburg, Illinois. Founded in 2012, the team focuses on cloud consulting & SI, ERP consulting and SI, cybersecurity, IT strategy consulting, and more.

IT strategy consulting company Kenway Consulting, LLC was founded in 2004. The firm offers IT strategy consulting, BI & big data consulting & SI, custom software development, business consulting, and more and has a small team.

Scalesology is a business intelligence company. Established in 2019, the team specializes in BI & big data consulting & SI, custom software development, application management & support, api development, and more. Their small agency is Chicago, Illinois-based.

Transparent Partners, an IT staff augmentation company, was established in 2015. Their small team is located in Chicago, Illinois. Their services include IT staff augmentation and IT strategy consulting.

IT strategy consulting company Bluebris Systems, Inc. Was founded in 2017. They are in Niles, Illinois and have a small team. Bluebris Systems, Inc. Offers IT strategy consulting, IT managed services, custom software development, web development, and more.

Midsize HR firm Peterson Technology Partners, is located in Park Ridge, Illinois. They specialize in HR services and IT strategy consulting and were founded in 1997.

ZG Worldwide Consultants is a business consulting company. Their midsize team is headquartered in Leland Grove, Illinois and Beltsville, Maryland and focuses on business consulting, custom software development, and IT managed services. The company was launched in 2013.

Located in Chicago, Illinois, Cloud5 Communications is an answering service. Established in 2006, the midsize team offers voice services, non-voice bpo/back office services, and IT managed services.

Launched in 1989, Concurrency Inc is a blockchain company. Their midsize team is in Chicago, Illinois and provides blockchain, Artificial Intelligence, IT managed services, cybersecurity, and more.

Links Technology Solutions, Inc. Is a midsize IT managed services company. Located in Schaumburg, Illinois, the agency was launched in 1999. Their team specializes in IT managed services, business consulting, IT staff augmentation, web design, and more.

Consulting Services Corporation is an IT strategy consulting company established in 2010. Their midsize team is based in Lombard, Illinois. Their services include IT strategy consulting, application testing, staffing, recruiting, and more.

Creative Designs Agency is a custom software development company. They are located in Rolling Meadows, Illinois and have a small team. Their services include custom software development and IT strategy consulting.

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.

Porte Brown, an accounting company, was established in 1946. Their midsize team is located in Elgin, Illinois; Evanston, Illinois; McHenry, Illinois and Tinley Park, Illinois. The firm focuses on accounting.

DMC, Inc. is an engineering and development firm founded in 1996. It is headquartered in Chicago, but has other locations in Somerville, Mass.; Denver, Colo.; New York, N.Y.; Houston, Texas; and St. Louis, Mo. DMC, Inc. has about 150 employees. While DMC's origins are in robotics and manufacturing automation, they currently offer custom software development and big data consulting services.   

Alexander Group, a midsize marketing strategy company, is headquartered in Chicago, Illinois. They specialize in marketing strategy, CRM consulting and SI, and business consulting and were founded in 1985.

Beaconhouse Technology is a Lahore, Pakistan-based cloud consulting & SI company. The midsize team focuses on cloud consulting & SI, IT managed services, custom software development, web development, and more and was founded in 2019.

Midsize custom software development company Herzum, is headquartered in Chicago, Illinois; Rende, Italy; Lugano, Switzerland and London, United Kingdom. Established in 2000, the team offers custom software development, mobile app development, and IT strategy consulting.