Rod Stewart signed to the label in the UK, but stayed with Warner Bros. Records in the US and the rest of the world.
Another well-known artist on the label was John Cougar Mellencamp, distributed by PolyGram in the US, and WEA in most other countries.
After Stewart and Mellencamp left the label, it stopped operating.
Stewart left in 1982 (last issue "How Long"), whereas Mellencamp stayed a little later.
Other acts to have releases on Riva included: (No PS) indicates that the record was issued without a Picture Sleeve [3]