Founded in Adelaide, it is owned by parent company Supatreats Australia, headquartered in the Sydney suburb of Baulkham Hills.

[1] The Wendy's franchise network of ice cream retail stores was founded in Adelaide, South Australia on 31 July 1979[2] by Bruce Koehne, John Hill, Geoff Davis and Phil Rogers.

[3] In 2014, the Singaporean company Global Food Retail Group acquired the master franchise rights for the chain.

[4] In late 2018, multiple Wendy's Supa Sundaes in New Zealand cancelled their franchise agreements and renamed themselves to Shake Shed & Co.

[5][6] In 2018, the High Court of New Zealand ruled that the Shake Shed & Co. stores must shut down.