By 1909, Allen's was the third largest confectionery business in Melbourne, after those of MacRobertson and Abel Hoadley.

It moved from an adjacent site to a vast factory built to the design of prominent Melbourne architect Joseph Plottel in South Melbourne on the banks of the Yarra River (which had formerly housed Holden's first Australian plant and Kraft Walker Foods), in the 1950s.

[3] Allen's abandoned chocolate production after World War II, however it became Australia's largest confectionery company.

[2] Allen's have been manufacturing confectionery in the town of Broadford, in Central Victoria, Australia since 1982.

[13] In June 2023, Allen's announced that production of Fantales was to be discontinued due to declining sales.