Rippon signed for English county side Sussex for the 2012 season, signing a contract which keeps him there until the end of the 2013 season. Having spent much of the 2012 season playing for the Sussex Second XI, he made his senior debut for the county in the 2012 Friends Life t20 against Kent at the County Ground, Hove. He took figures of 4/23 on debut to help Sussex to an 83 run victory. He has since made two further appearances in the competition, against Surrey at The Oval, and Hampshire at the Rose Bowl. Rippon has suggested he may want to qualify for England.
In June 2018, he was awarded a contract with Otago for the 2018–19 season. In June 2020, he was offered a contract by Otago ahead of the 2020–21 domestic cricket season