Executive Team

Chris Callahan
President and
Chief Executive Officer
Hemanth Parasuram
Guhan Swaminathan
Managing Director
John Kasser
Chief Operating Officer
Chris Warfield
Chief Digital & Marketing Officer
Vince Schuld
Senior Vice President of Sales
Doug Close
Senior Vice President of Solutions
Joel Grace
Senior Vice President of Client Services
Becky Holby
Vice President of Human Resources
Jim Locke
Chief Financial Officer
Dean Flatland
Vice President of Information Technology


  • Atlanta
    675 Mansell Road, Suite 115
    Roswell, GA 30076
  • Boston
    25 Walpole Park South, Suite 12, Walpole, MA 02081
  • Rosemont
    10275 W. Higgins Road, Suite 470 Rosemont, IL 60018
  • Vernon Hills - Corporate Headquarters
    960 Woodlands Parkway Vernon Hills, IL 60061


  • Bloomington
    1701 E Empire St Ste 360-280 Bloomington, IL 61704
  • Chicago
    233 S Wacker Dr. Suite 9550 Chicago, IL 60606
  • Tampa
    380 Park Place, Suite 130, Clearwater, FL 33759

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