Updated: Before Feb 9th 2016
They make rocket engines for US defense. The F-50, the H-180W and the J-210H are known. The J-210H is a hybrid one.
"A hybrid rocket engine with thermalite ignition"
Engines of AEROTECH ROCKETS
Model: F-50
Model: H-180W
Model: J-210H
"Hybrid engine with thermalite ignition"