High Quality Content by WIKIPEDIA articles! The Royal Society for the Prevention of Cruelty to Animals (RSPCA) is a charity in England and Wales that promotes animal welfare. In 2009 the RSPCA investigated 141,280 cruelty complaints and collected and rescued 135,293 animals. It is the oldest and largest animal welfare organisation in the world and is one of the largest charities in the UK, with 1,505 employees (as of 2008).