Smith Thompson Home Security

History: Smith Thompson Security was established in 1978 by Mark Thompson and Jim Smith. Currently, Mark Thompson is President and CEO. Lynda Thompson is co-owner and Executive VP. Number of Customers: As of 2010, Smith Thompson Security is one of the largest independently owned companies in Texas and Arizona, having sold more than 100,000 accounts since its inception. Rating: Smith Thompson Security maintains an A+ Better Business Bureau rating, Consumer Choice 4 years in a row, and Angie's List Super Service Award.