Manufactures kit parts for a line of gyroplanes and add on road-able rotorcraft.
Carter Aviation Technologies
A research and development firm dedicated to the creation of practical, advanced technology innovations in hybrid aircraft and rotorcraft.
Groen Brothers Aviation, Inc.
Designing and developing new high performance gyroplanes and gyrodynes using advanced technology and modern aerospace design methods.
Gyro Kopp Ters
Manufactures complete gyroplane kits, complete with engine, rotor blades and everything.