Regional League Rugby XV is a competition between rugby clubs from 6 countries, Bosnia And Hercegovina, Bulgaria, Croatia, Hungary, Serbia and Slovenia.
After successful inaugural season, members of Regional League in Rugby XV in season 2008/2009 become thirteen clubs from six countries:
Nada-Split Croatia,
Zagreb-Zagreb Croatia,
Ljubljana- Ljubljana Slovenia,
Esztergomi Vitezek Suzuki RSE – Esztergom Hungary,
KARC-Kecskemet Hungary,
Battai Bulldogok- Szazhalombatta Hungary,
Čelik-Zenica,
Pobednik-Belgrade Serbia,
Partizan-Belgrade Serbia,
KBRK-Belgrade Serbia,
Bezigrad- Ljubljana Slovenia,
Olimpija- Ljubljana Slovenia &
Valiacite- Pernik Bulgaria.