After his career as a footballer, Ružnić became a football agent with his clients including; Josip Iličić, Jasmin Kurtić, Armin Bačinović, Dalibor Volaš, Aleksander Rajčević, Robert Berić, Aleš Mertelj, Aljaž Struna, Siniša Anđelković, Luka Krajnc, Elvis Bratanović, Anej Lovrečič, Jasmin Handanovič and Anton Žlogar.
Amir Peretz | Amir Jan Sabori | Amir | Zahra Amir Ebrahimi | Chaudhry Amir Hussain | Amir Sjarifuddin | Amir Qazaghan | Amir Johnson | Amir Hosseinpour | Amir Fanan | Amir Bar-Lev | Second Amir Sjarifuddin Cabinet | Cyrus Amir-Mokri | Ayaz Amir | Amir Wagih | Amir Syamsuddin | Amir Mehdi | Amir Mann | Amir Khan's style | Amir Hossain Amu | Amir H. Hoveyda | Amir Hassanpour | Amir Garib | Amir Chamdin | Amir Butler | Amir Attaran | Amir Aly | Amir al-Mu`minin | Amir al-Mu´minin | Amir Aczel |