UPC Cablecom Holdings GmbH, trading exclusively under the brand name upc cablecom, is the largest broadband cable operator in Switzerland. Founded 1994 through multiple mergers between smaller companies, it is part of Liberty Global Europe's UPC Broadband division since the end of 2005.

Cablecom operates in Switzerland, including the cities of Zürich, Geneva, Basel, Berne, Lausanne, Lucerne and Winterthur, and Vorarlberg (Austria) serving 1.56 million cable television customers, as well as approximately 250 smaller broadband cable operators.

In the 1930s the first cable network operators started to broadcast a variety of Radio channels to households via cable. One of these cable network operators was Rediffusion S.A., established in 1931, which disseminated radio programmes per wire broadcasting. At the end of the 1950s Rediffusion began to broadcast the first black/white television channels from the Üetliberg antenna tower in Zürich. In 1994 Rediffusion and other independent cable network companies merged to form Cablecom, owned by Siemens, VEBA and Swisscom.