Tristar Software Share: Technology Tristar Software Visit Website 7350 Morro Road Atascadero , California 93422 805 227 1213 About Map About Tristar Software stands head and shoulders above the competition when it comes to customization. Tristar is a custom design company. We have been in the attorney services industry for 30 years. What's Nearby? Distance: 5 10 15 20 25 50 mi.