BONATRANS GROUP a.s., Bohumin in the Czech Republic, is the Europe's major manufacturer of railway wheels, wheel sets, axles, rubber sprung wheels and tyres. The products are used at manufacturing and repairing of the freight wagons and coaches, locomotives, electric trains and trams.

KINEX BEARINGS a.s., Kysucke Nove mesto in Slovakia, is a manufacturer of bearings and bearing housings and one of the main suppliers of wagon wheel bearings to German and other European railways.

BECORIT GmbH, Recklinghausen in Germany, is a part of American Wabtec Corporation and a leading manufacturer of brake linings in Europe.

METAL STUDENKA a.s.,  Studenka in the Czech Republic, is an established manufacturer of screw couplings, draw hooks, buffers and draw gears for railway and tram industries.

DAKO-CZ a.s.Tremošnice in the Czech Republic, is a manufacturer of brakes and brake parts for rail and tram industries.

HANACKE ŽELEZARNY A PEROVNY a.s., in the Czech Republic is a leading manufacturer of springs for automotive and railway industry, providing the latter with coil and leaf springs.

SV Vyrobni s.r.o., Prostejov in the Czech Republic, is a company manufacturing mainsprings.

PARS KOMPONENTY s. r. o., Studénka in the Czech Republic, is a manufacturer of doors, windows and other equipment for passenger trains, locomotives, metros, trams, trolleybuses and buses.

SAFT FERAK is a manufacturer of nickel - cadmium (Ni-Cd) batteries for all rail vehicles, metros, trams and trolleybuses.