Top 100 IT Services Companies in Chicago

Plaidypus, Inc. is a software design and development agency based in Naperville, Ill. and founded in 2004. Their team of eight employees specializes in custom software development, UX/UI design, and application management. They mainly work with mid-market and small business clients in the non-profit, IT, and business services industries.

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.

Logic Pursuits is a data analytics company headquartered in Naperville, Illinois and Ahmedabad, India. The small team focuses on BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, e-commerce development, and more. The company was launched in 2016.

Aeverie Inc. Is a midsize business intelligence company established in 2013. Their services include BI & big data consulting & SI. The firm is in Buffalo Grove, Illinois.

BSSI2 LLC is an IT strategy consulting company. Based in South Barrington, Illinois, their small team provides IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services. The agency was established in 2005.

Small IT managed services and IT strategy consulting company KingsFord Consulting Services, is headquartered in Schaumburg, Illinois. Established in 1992, the team offers IT managed services and IT strategy consulting.

Midwest Business Consulting, LLC is an IT strategy consulting company. Founded in 2012, the small company is located in Lockport, Illinois. Their services include IT strategy consulting and IT managed services.

VSecureLabs is a cybersecurity company. The small Aurora, Illinois-based company was founded in 2015. Their services include cybersecurity.

Located in Schererville, Indiana, AJD Tech, LLC is an IT strategy consulting company. The agency focuses on IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services and is small.The agency was established in 2016.

Rely Services Inc is a midsize non-voice bpo/back office services company. Headquartered in Schaumburg, Illinois; Miami, Florida; Kennesaw, Georgia and Cincinnati, Ohio, the company was founded in 1997. Their team specializes in non-voice bpo/back office services, HR services, voice services, digital strategy, and more.

DecisionTrek, LLC, a big data company and artificial intelligence firm, was launched in 2021. The small team specializes in BI & big data consulting & SI and Artificial Intelligence. The agency is in Naperville, Illinois.

Located in Itasca, Illinois, Synegen, Inc. Is a custom software development company. The agency provides custom software development, web development, cloud consulting & SI, CRM consulting and SI, and more and is small.The agency was established in 2001.

Magnitech is a small IT managed services company. They specialize in IT managed services, cloud consulting & SI, and IT strategy consulting and were founded in 2010.

Corporate training company TechWerks was established in 2009. Headquartered in Arlington Heights, Illinois, their midsize team provides corporate training, business consulting, custom software development, application management & support, and more.

Hull Technologies Inc, an ERP consulting and SI and IT managed services company, was founded in 2017. The small Naperville, Illinois-based team focuses on ERP consulting and SI and IT managed services.

Established in 1996, WEB is an IT managed services company. They are headquartered in Naperville, Illinois and have a small team. Their services include IT managed services, IT strategy consulting, and cloud consulting & SI.

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.

Q1 Technologies, Inc. Is a midsize custom software development firm. Located in Aurora, Illinois, the firm was established in 2002. Their services include custom software development, IT managed services, cybersecurity, and business consulting.

AH Technology, Inc., an IT managed services company, is headquartered in Mundelein, Illinois. Established in 2018, the small team provides IT managed services, cybersecurity, cloud consulting & SI, other IT consulting and SI, and more.

Flexday Solutions LLC, an IT strategy consulting company, was established in 2018. The small Naperville, Illinois-based team focuses on IT strategy consulting, cloud consulting & SI, ERP consulting and SI, IT managed services, and more.

Mavent Analytics is a big data analytics company launched in 2008. The agency specializes in BI & big data consulting & SI, IT strategy consulting, recruiting, and IT staff augmentation and has a small team. The agency is in Warrenville, Illinois.

Relavise is a fractional cmo services company headquartered in Glen Ellyn, Illinois. The firm specializes in fractional cmo services, IT strategy consulting, CRM consulting and SI, and business consulting and has a small team.The firm was founded in 2023.

IT managed services company Holleb Consulting is headquartered in Northbrook, Illinois. The small firm was established in 1988. Their team focuses on IT managed services, IT strategy consulting, and web development.

Based in Bolingbrook, Illinois; Detroit, Michigan; Nanakaramguda, India and Visakhapatnam, India, CES Limited is an accounting company. They provide accounting, cloud consulting & SI, enterprise app modernization, blockchain, and more and were launched in 1985.

BKS Systems - Managed IT Services is an IT firm based in Plainfield, Ill. with no more than 50 experts. Since their founding in 2000, they have offered IT managed services and IT strategy consulting solutions for small and mid-market firms alike.

KAT TECH SYSTEMS INC is a custom software development company. They are based in Arlington Heights, Illinois; Hopkins, Minnesota and Hyderabad, India and have a midsize team. Their services include custom software development, web development, mobile app development, BI & big data consulting & SI, and more.

Zadro Web is a software development company of less than 10 employees. Founded in 2007, their headquarters is in Schaumberg, Ill. They specialize in web design, web development, and cloud consulting and SI. They primarily serve midmarket and small business clients in the business, financial, and telecommunications industries.

Ahava Services is a CRM consulting and SI and mobile app development firm established in 2015. They are located in Bartlett, Illinois and have a small team. Their services include CRM consulting and SI and mobile app development.

Launched in 2005, Beacon Consulting Group, Inc is a big data analytics company and mobile app development firm. Located in Hoffman Estates, Illinois, their midsize team provides BI & big data consulting & SI and mobile app development.

JIT, an IT strategy consulting company, was founded in 2010. Their midsize team is based in St. Charles, Illinois. The company specializes in IT strategy consulting.