David Armstrong

David Armstrong has over 35 years of experience in security and facility management. David began the career at Nortel Networks as a SOC Operator and Site Supervisor from 1990 to 1995. Following that role, David worked as a Client Service Manager for GardaWorld from 1995 to 2000 and at JDSU for a brief period in 2000. In November 2000, David joined Entrust Limited as a Manager of Resource Protection, holding the position until May 2009, when David founded Armstrong Security Consulting, operating until June 2024. David returned to Entrust in January 2015 as Supervisor of Office and Facility, advancing to the role of Physical Security Manager in May 2025. David's educational background includes studies at Sir Sandford Fleming from 1988 to 1990.