Only manufactueres with 3 or more aircraft registered are listed.
J & J Ultralights (78)
JDT Mini-MAX (19)
JMB Aircraft (52)
JPM (11)
JRM Helyplanes (4)
Jabiru (557)
Jackson Jerry (3)
Jacobs (8)
Jacobs-Schweyer (6)
Jamieson (6)
Jancsó Endre-Szokolay András (3)
Jancsó-Szokolay (3)
Jansson (53)
Jasco (5)
Javelin (36)
Jeffair (6)
Jensen (4)
Jihlavan (33)
Jodel (1633)
Jodel (Passot) (16)
Jodel (Valladeau) (20)
Jodel (Wassmer) (111)
Johnson (33)
Jones (7)
Jones Hobert (6)
Jones Stan (3)
Jonker (26)
Jonker Sailplanes (27)
Jora (4)
Julian Cd (3)
Junkers (166)
Junkers (AAC) (133)
Junkers (CASA) (41)
Junqua (5)
Jurca (151)
Just Aircraft (178)
Juventus (4)