Aerotech

From the Wikipedia Article

Aerotech Consumer Aerospace, established in 1982, is a company that supplies motors, kits and components for mid and high power rocketry.

The company's headquarters are located in Cedar City, Utah and its products are sold mainly through US and international dealers. It specializes in Ammonium Perchlorate mid and high power rocket motors, as well as supplying rocket kits designed around their motors.

Aerotech produces single use engines in the mid-power range (F and G engines). They also produce high power rocket engines reloads, ranging from an H to an N motor impulse. These are reloads, requiring Rouse Tech reload casings.