Top 100 IT Services Companies in Illinois

Adivi Corporation is a small IT managed services company. They provide IT managed services, cloud consulting & SI, and IT strategy consulting and were launched in 1994. The firm is located in Chicago, Illinois.

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.

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. 
 

TechNoir Solutions is a Chicago-based managed IT services provider. They were founded in 2012 and have a team of 12 employees who specialize in cloud consulting, IT managed services, and cybersecurity.

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.

CSW Solutions is a solutions services company based in Chicago. Founded in 2005, they have about 20 employees that focus on middle-market companies and enterprises in the financial services, retail, healthcare, telecommunications, and manufacturing industries. They specialize in web development, custom software development, mobile app development, and IT managed services.

Implemify is an IT strategy consulting company. They provide IT strategy consulting, CRM consulting and SI, IT managed services, IT staff augmentation, and more and were founded in 2023. The firm is in Streamwood, Illinois.

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.

Based in Downers Grove, Ill., Mindsight is a technology consulting firm that was founded in 2004. Their team of about 65 employees specializes in managed IT services, cloud consulting & SI, and IT strategy consulting. 

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.

Technology Advisors is a CRM consulting and SI company. The small team is headquartered in Des Plaines, Illinois. Their services include CRM consulting and SI, other IT consulting and SI, and mobile app development.

Stratosphere Networks is an IT solutions company based in Evanston, Ill. Since 2003, their team of about 41 employees has been specializing in IT managed services, cloud consulting & SI, and ECM consulting. Stratosphere Networks works primarily with small businesses. 

Established in 2002, Analytics8 is a big data company. Their midsize team is in Chicago, Illinois; Raleigh, North Carolina and Plano, Texas. Their team provides BI & big data consulting & SI, IT strategy consulting, and cloud consulting & SI.

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.

PRO is an IT services provider based in Chicago. The company, founded in 2003, has a team of more than ten that provides IT managed services, IT strategy consulting, and cybersecurity to small companies and organizations in the manufacturing, nonprofit, financial services, business services, and real estate industries.

120/80 is a PPC company based in Evanston, Ill. Founded in 2019, this company has two employees. Services offered by 120/80 include PPC, email marketing, and SEO for small to mid-sized companies, specifically focusing on sectors like healthcare, business services, manufacturing, and in-home services.

Established in 2014, Xcelacore is a branding firm. Their small team is headquartered in Chicago, Illinois. Their services include branding, web design, search engine optimization, social media marketing, and more.

Simply Smart Technology is a managed service provider based in Chicago. Founded in 2010, it has a team of 7 employees that provides cloud consulting, IT managed services, and cyber security services.

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.

Big Chalk, a midsize big data company, is based in Evanston, Illinois. Founded in 2017, the team offers BI & big data consulting & SI, IT staff augmentation, digital strategy, and business consulting.

PlotnikovSoft is an IT solutions company based in Des Plaines, Ill. The company, founded in 2010, has around 100 developers who provide cloud consulting & SI, web development, CRM consulting & SI, ECM consulting & SI, and mobile app development services. PlotnikovSoft serves midmarket and other-sized companies in the IT, telecommunications, utilities, and energy & natural resources industries.

Crowe is a public accounting, technology, and consulting firm headquartered in Westborough, Mass. with other offices in Chicago, New York City, Indianapolis, and South Bend, Ind. It was founded in 2005 and has grown rapidly to 5,304 employees who provide CRM consulting & SI, application management and support, tax and payroll preparation, and financial accounting services. 

Founded in 2005, Global Point Technology Solutions is an IT and Cloud consulting company based in Chicago. They also provide managed IT services including help desk, network, and hosting services. 

Digital agency Arcalea was founded in 2015 and has offices in Chicago, Charlotte, N.C., Denver, and Indianapolis. Its team of 12 helps clients with web development, SEO, email marketing, content marketing, web design, and PPC.

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.

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.

8th Light is a software consultancy firm headquartered in Chicago, with other offices in Los Angeles, New York, and London. The agency and its team of 110+ has experience in web development, custom software development, web design, mobile app development, and cloud consulting.

Waident Technology Solutions is an IT outsourcer based in Chicago and with offices in Glen Ellyn, Ill. and Brookfield, Wis. Founded in 2004, the team of about 20 employees provides IT managed services and cybersecurity services. They primarily work with mid-market clients in the financial services, business services, and real estate industries.

IT Risk Managers is an IT solutions company located in Oakbrook Terrace, Ill. It was founded in 2007 and now employs a team of 24 that provides IT managed services, IT strategy consulting, cloud consulting & SI, cybersecurity, and IT staff augmentation 

ProdigyTeks, Inc is a small IT firm headquartered in Chicago. Founded in 2013, their main focus lines are IT managed services and IT strategy consulting.