Cetin, a privately owned telecommunications infrastructure company founded in 2015 and headquartered in Czechia, provides wholesale active and passive services across Central and Eastern Europe. Employing approximately 1390 people, Cetin's revenue exceeded $1 billion in 2024. Owned by e& and PPF Group, the company originated from the separation of infrastructure assets from O2 Czech Republic and three Telenor-branded operators in the region. Cetin operates through four subsidiaries in the Czech Republic, Bulgaria, Hungary, and Serbia.