Shortly after its establishment, GFR has become an affiliated member of the
International Union of Railways (UIC), a member of OSJD and an associated member of the Organization for Railway Collaboration (OCCF). Moreover, it has concluded collaboration agreements with railways from Hungary, Bulgaria, Serbia, Ukraine and the Republic of Moldova.
Actually, GFR is part of the following railway organizations:
- UIC - since December 2003 (HQ in Paris, France)
- OCCF - since April 2004 (HQ in Varsow, Poland)
- CIT - since August 2004 (HQ in Bern, Switzerland)
- GCU (AVV) – since June 2006 (HQ in Brussels, Belgium)
- CER - since May 2007 (HQ in Brussels, Belgium)