• Alexian Brothers Medical Center
• Automatic Data Processing, Inc.
• Harvard Maintenance, Inc.
• Elk Grove Village
• Ready Set Service, LLC.
• Appel Vacations Inc.
• Steiner Electric Company
• Metal Impact, LLC.
• R.R. Donnelley & Sons Company
• ITW Medalist

Ninety-Two (92%) percent of firms in the business park employ fewer than 50 workers.