Riva Records Ltd was a record label founded the UK in 1975 by Billy Gaff, manager of Rod Stewart.
Rod Stewart signed to the label in the UK, but stayed with Warner Bros. Records in the US. Another well known artist on the label was John Cougar Mellencamp, distributed by PolyGram in the USA, and WEA in most other countries. After Stewart and Mellencamp left the label, it stopped operating.
Rod Stewart left in 1982 (last issue "How Long"), whereas Mellencamp stayed a little later.