Thank you for your interest! Security Professionals of TX is committed to excellence in service. All inquiries will be answered within 24hours. If you have any questions, we can be reached directly at 713-918-6506- or [email protected]


About Us

Founded in 1976 by former Police Chief Ronald Fraser, Security Professionals of Texas has been an active member of the Houston security community through four decades. Our success is due to one driving goal: providing superior service, not just focusing on the bottom line.
We specialize in providing service to companies who demand more from their security contractors, particularly in the area of public relations and courtesy.
Today, Security Professionals of Texas still carries on it’s tradition of excellence started by Chief Fraser so many years ago. Exceeding our client’s expectations is what we strive for every day



Susan Griswold – President                                                                                                                 Susan

Susan began working as an administrative assistant for Professional Security Associates in 1983.  She purchased the company in 1988 and changed the name to Security Professionals of Texas. Under Susan’s direction, the company has expanded steadily through the years, and today is entering new markets such as patrol and alarm response.

As a minority business owner, Susan has a wealth of experience with a wide array of clientele, including retail settings, corporate campuses, educational institutions, and investigations.

Susan has served as the State Treasurer for the Associated Security Services and Investigators of the State of Texas for 6 years, and is currently Regional Coordinator.