Digi TV Croatia was launched in November 2006 and reported revenues of about EUR2 million for 2012.
The value of the deal has not been disclosed at the request of RCS&RDS, Vipnet said in a statement Monday.
RCS&RDS is present in Romania, Hungary, the Czech Republic, Slovakia, Spain, Italy and Serbia. The company is indirectly owned by businessman Zoltan Teszari.
Its main competitors in Romania are UPC and Romtelecom.