ABC, AGO, Akasaka, Alco, Alpha, B&W, Blackstone, Bergen, Caterpillar, Chinese Type, CKD, Crepelle, Cummins, Daihatsu, Deutz, Doxford, Daikin, Daewoo, Fiat, Fuji, General Electric, General Motors, GMT, Hanshin, Hatlapa, Hamworthy, Hitachi, Isota Frachini, Kobe, Kawasaki, MAK, Makita, MAN, MAN B&W, Mercedes, Mitsubishi, MTU, MWM, Macgregor, Mannesmann, Niigata, Nohab Polar, Paxman, Pielstick, Ruston, SKL, Skoda, Stork, Sperre, Sulzer, Tanabe, Wartsila, Westfalia, Woodward, Yanmar ect