DDK（日）
DDK
DCL
Dc gear motors
DBUnlimited
DBT
DBMOptix
DBK（德）
DBI-SALA
DB PRUFTECHNIK
DB Industrietechnik
Daytronic
Dayton
DAYKIN
DAYCO
DAXTEN
DawnVME
DAWINElectronics
DAWICONTROL
Davum-Tmc
