Only manufactueres with 3 or more aircraft registered are listed.
CAB (4)
CASA (1192)
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CEA (818)
CEA Jodel (6)
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CHEETAH (3)
CUB CRAFTERS INC (4)
CZAW (276)
Callair (223)
Camair (30)
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Cameron (827)
Cameron Balloons (3089)
Cameron Balloons Ltd (613)
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Cameron Balloons Us (1358)
Campbell (73)
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Chinese A/f Aero Ind Devel Ctr (6)
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Cirrus Design Corp (13)
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Colt Balloons (109)
Colt Balloons Ltd (120)
Columbia Aircraft Mfg (333)
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Comco Ikarus (478)
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Consolidated (197)
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Consolidated Aeronautics Inc. (336)
Consolidated Vultee (774)
Constructeur Amateur (322)
Convair (1874)
Cook (5)
Corben (383)
Corbett Farms Ltd Spectrum Aircraft Division (9)
Corby (73)
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Cosmos (132)
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Cub Crafters (438)
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Curtiss Mfg Co (3)
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Curtiss-Wright (337)
Custom Flight (20)
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Cvjetkovic (54)
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Cyclone Airsports (70)
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Czech Sport (75)
Czech Sport Aircraft (30)