Hathlocke Security Group was founded by two industry-leading professionals with a combined 30+ years of real world experience and is based out of Dallas, TX. We are a full-service provider who specializes in security, training, consultations and investigations for corporate, non-profits and private clients.

Our strength is in our employees who take pride in their work, are well trained and always given the tools necessary to get the job done right.

We look forward to hearing from you.

Christopher R. Cannizzaro  Co-Owner

Christopher R. Cannizzaro Co-Owner


United States Marine Corps, Sergeant

United Nations, Department of Safety and Security

UHNWF Los Altos Hills CA, Security

San Francisco Giants, Assistant Security Manager

Oakland Museum of California, Associate Security Director

Chad R. Kazmierczak  Co-Owner

Chad R. Kazmierczak Co-Owner


City of Dallas, Master Police Officer

Private Security Company, Owner Operator

Mount Carmel East Hospital, Emergency Medical Technician

United States Marine Corps, Sergeant

Military Liaison, ASIS

Together, we mastered the science of safety and security.
— Chad R. Kazmierczak


Zone of Proximal Development

Richard T. Casavecchia  MBA

Richard T. Casavecchia MBA


United States Army, Captain

State of California, Emergency Manager

Triple Aught Design, Manager