DaewooSouth Korea
DaimlerGermany
Daimler BusesGermany
Daimler-Benz AGGermanyDarlington WorksUnited KingdomDCD Group (Pty) LtdDienvidāfrikas SavienībaDe SimonItaly
Deepal2008
Demikhovsky Machine-building PlantRussiaDenzaPeople's Republic of China
Deutsche WaggonbauGermany
DiattoItaly
DodgeUnited States
Doncaster WorksUnited Kingdom
Dongfeng Motor Company LimitedPeople's Republic of ChinaDongfeng NammiPeople's Republic of ChinaDongfeng Nissan Passenger Vehicle CompanyPeople's Republic of China
Dopravní podnik města BrnaCzech Republic
DS AutomobilesFrance
Duncan & FraserAustraliaDüsseldorfer WaggonfabrikGermany
DÜWAGGermany
Đuro ĐakovićCroatia