The story
Founded by Gerry Anderson.1
The various "Century 21" brands predate Century 21 Productions — immediately following completion and the first TV screening of Thunderbirds, AP Films was renamed Century 21 Productions to align it with its growing merchandising sister companies Century 21 Merchandising, Century 21 Toys, Century 21 Records, and Century 21 Publishing.
By around 1969, the merchandising, toys and publishing arms were under the control of a new entity, Century 21 Enterprises. At the same time, Century 21 Productions had become financially over-stretched. Within a few months, the company had shut down its three warehouse-sized studios on the Slough Trading Estate.
From Wikipedia’s article on Century 21 Organisation, shared under CC BY-SA 4.0.3
