The story
It was founded in 2001 by Simon Collins and Patrick Southon and was acquired by PartyGaming in July 2009.
The company subsequently became part of bwin.party digital entertainment plc in March 2011, following the merger of PartyGaming with bwin Interactive Entertainment AG
Cashcade's current parent company is now owned by the multinational online gambling operator, Entain, who took control of the business as part of its acquisition of Bwin.party and subsequently Cashcade in February 2016 following a competitive bidding process with 888 Holdings.
From Wikipedia’s article on Cashcade, shared under CC BY-SA 4.0.3