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Providing IT Services For Businesses, Non-Profits, and Government Agencies.

CorporateIT Department is a Chicagoland based IT company that provides IT solutions of every kind - to businesses of all sizes. 


Oh, and at CorporateIT,  we actually answer the phone when you call.


What We Do

Unrivaled Service

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  • Proactive Support
  • Remote Help
  • On-Site Support
  • Software and Hardware Installations

Monitoring & Security

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  • 24×7 Monitoring
  • Reporting
  • Antivirus Software
  • Enterprise Firewall

Cloud Services

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  • Office 365/SharePoint
  • Power Apps / Dynamics
  • Microsoft Teams
ONE Plan

With ONEPLAN you can enjoy all of our services and excellent support for one exceptional rate.


What People Are Saying

Mark has helped us out several times when our computers have needed work. He has always been prompt and treated us fair on the billing.

I would highly recommend Mark.

Thomas Jurs

Broker & Auctioneer

Let me begin by saying that it was a tough decision to select only three top attributes for Mark and his company. They qualify for many more than three. We switched to CorporateIT Department more than a year ago and nearly all of our IT problems have disappeared. Mark and his company have restructured our network and simplified our entire process. They have reduced our costs and increases our reliability. What a bonus! I couldn’t recommend anyone more than Mark!

Dave Barber

Retired Executive Director at United Way of Greater McHenry County

Mark the best of the best when it comes to an IT Consultant and product provider. We have worked with Mark since 2006 and have nothing but great results. He has helped our company with computers problems at all hours of the day and night and he not only is knowledgeable about his field, but also cares about his clients and their needs. I would highly recommend him and his company!

Dena Napoli

President – CDM Promotions, Inc., Extra Space

We have been working with CorporateIT, specifically Paul Hathcock for some time now. What we appreciate most about working with Paul is his ability to quickly solve our issues, if not instantly while we are on the phone, by that evening. He does most of his time consuming computer work after hours so he doesn’t interfere with our work and this keeps everyone happy. He is extremely knowledgeable and what he doesn’t know, he will research, which makes him able to deliver accurate answers to any issue we have had. Their prices are very reasonable however, his service to our company has been priceless.

Ron Tessler

Owner, Tessler Construction Company

We're Here To Help!

Office (by appt only)

720 S. Eastwood Drive #180
Woodstock, IL 60098

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