Executive Team

Chris Callahan
President and
Chief Executive Officer
Hemanth Parasuram
Guhan Swaminathan
Managing Director
John Kasser
Chief Operating Officer
Chris Warfield
Senior Vice President of
Sales & Marketing
Vince Schuld
Vice President of Sales,
Commericial Markets
Doug Close
Senior Vice President of Cybersecurity
Joel Grace
Senior Vice President of IT Infrastructure and Cloud
Bill Tohtz
Chief Architect,
Data Center
Jim Locke
Vice President of Finance
Becky Holby
Human Resource Director


  • Atlanta
    6 Concourse Parkway,
    Suite 2900
    Atlanta, GA 30328
  • Boston
    25 Walpole Park South, Suite 12, Walpole, MA 02081
  • Chicago
    825 Corporate Woods Parkway Vernon Hills, IL 60061
  • Moline
    1 Blackwell Blvd.
    Moline, IL 61265
  • Tampa
    380 Park Place, Suite 130, Clearwater, FL 33759

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