About Us

Who we are

Oliver Stankovic – Founder / Life and Health Coach

In 1998, Oliver Stanković (born in 1971) founded OLSTA Sports Management und Marketing GmbH, and he is the only founder. After graduating from Dresdner Bank AG Baden-Baden-Rastatt as a banking officer with an additional qualification for a financial technician, Mr. Stanković completed his studies of business economics at the European Business School in Oestrich-Winkel and became an economist. During his studies, he spent one semester at the Ecole Superieure de Commerce in Dijon (France) and the University of California in Berkeley (California / USA). In addition, he obtained a master’s degree at the Faculty of Organizational Sciences (FON), University of Belgrade (Serbia). Mr. Stanković is engaged in career planning and investment management, and, as a life coach, he advises OLSTA clients in the field of fitness and nutrition. For this purpose, he uses SCIO bioresonance device, for which he was trained in 2017 at the postgraduate studies of holistic energy medicine at the University of Medicine and Pharmacy in Timisoara (Romania). He received CME (Continuing Medical Education) credits and an academic certificate for his academic achievements. This certificate is the first and only academic certificate confirming the expertise in the use of SCIO device. Besides, Mr. Stanković is a prana-therapist following the teachings of Grand Master Choa Kok Sui, an External Medical Quigong School. This school has been very carefully developed, in a systematic and scientific way, and it works practically with pure life energy. Apart from reaching the advanced level in 2016, Mr. Stanković achieved Level 3 Prana Psychotherapy in 2018 and Pranic Crystal Healing in 2019 in accordance with Pranic Healing by GMCKS and is a practitioner of Arhatic Yoga by GMCKS.

Oliver Stankovic – Life Coaching


Goran Ristanovic – owner & general manager of our partner firm Olsta d.o.o. Belgrade

Mr. Ristanovic is one of the co-founders of Olsta’s representative office in Belgrad, Serbia and Montenegro. Former basketball player of BC OKK Beograd, BC Partizan and member of the A-National Team of Yugoslavia. After his player career, since 1988. to 1992. he was working as Marketing Director in BC Partizan, when the club in 1992. won European Basketball Championship on final-four in Istanbul – Turkey. That period in BC Partizan is famous because of the great basketball players as Djordjevic, Divac, Paspalj, Danilovic, and also coaches like Mr. Obradovic and Mr. Vujosevic. After that, he was General Manager of BC Beobanka, Yugoslav major league, club who has great history in Yugoslav basketball. Mr. Ristanovic obtained a degree in Law at the University of Belgrade.


Markus Kühn – General Manager

Markus Kühn was born on November 3rd, 1969 in Karlsruhe, Germany and played basketball on high professional level, for the team of Telekom Karlsruhe in the 2nd German division. He owns the basketball A-licence for coaches, the DOSB C-licence and is looking back on many years of coaching experience on Germanys` top team level, individual practice and all-star teams. After grammar school, he graduated at business school and began to study general management on university level. He has been employed for the German National-Anti-Doping-Agency for years. Mr. Kühn is the General Manager of Olsta Sports Management and Marketing GmbH since February, 2003.

Markus Kühn CV 2019


Ralph Gyöngyösi – Olsta Sportsagent for Germany

Mr. Gyöngyösi has joined our staff in the beginning of 2001 and is in charge for our clients in Germany. He has a yearlong experience as professional Team Handball player and is presently an active member of TSV Östringen, 2. German division. He also has the B-licence for coaches of the German Team Handball federation DHB. Mr. Gyöngyösi studied Physics, Mathematics and Sports at the Universities of Frankfurt and Heidelberg and has obtained “1. and 2. Staatsexamen” as degrees.




Olsta d.o.o. – Belgrade, Serbia



Agencija Sport – Belgrade, Serbia