VRZ Karlovo
VRZ Karlovo or Vagono-remonten zavod Karlovo, mostly known as, was established in 1923 in Karlovo with principal business activities in repairs of railway cars and production of spare parts.
Since 2007 the focus of the company was shifted on design, development and manufacturing of a railway car for the Bulgarian and European markets – cars type Sgnss, Zas/Zaes/Zacns, Eaos/Eanos, etc. In present days, the company's activity includes railway cars repairing and manufacturing services, railway equipment, spare parts production, assemblies and units for the rolling stock.