Cetin, a privately owned company jointly owned by PPF Group and e&, is headquartered in Czechia. Founded in 2015, the company employs approximately 1,390 individuals and reported $1.4B in revenue as of 2024. Functioning as a wholesale provider of active and passive telecommunications infrastructure services, Cetin operates in the Central and Eastern Europe region. The company was formed through a structural separation of infrastructure business from O2 Czech Republic and three Telenor branded operators in Eastern Europe, and it represents four operating companies located in the Czech Republic, Bulgaria, Hungary, and Serbia.