These were the consultants and contractors, as recorded at the time.
Professional teams
Architects: Chamberlin, Powell and Bon
Assistants: Watcyn Williams and Robert Ashdown
Consulting structural engineers: Ove Arup and Partners
Consulting heating engineers: H J Knox.
Building teams
Substructure contract
General contractors:
Griggs & Son Ltd
Subcontractors
Demolition: Chas Griffiths and Co
Excavation: Westminster Wharfage Co
Aggregates: Ham River Grit Co
Reinforcement: Helical Bar & Engineering Co
Shuttering: Scaffolding GB Ltd
Superstructure contract
General contractors
George Wimpey & Co Ltd
Subcontractors and suppliers
Joinery: Boulton & Paul
Heating and plumbing: Ellis (Kensington)
Lifts: Express Lift Co
Glazing: Faulkner Green
Electrical: Hearson
Trees: Hillier & Sons
Doors: Leaderflush
Paint: W & J Leigh
Asphalt: F J Prater
Window suppliers: Quicktho
Plastering: Rooney