| Part | Responsible |
| | |
| Todd-AO patents | Owned by American Optical Company |
| Todd-AO sound | Developed by Fred Heynes (of Westrex) |
| Todd-AO cameras, projectors and screens were manufactured and supplied by | American Optical company. |
| Todd-AO magnetic sound heads, amplifiers and "Voice of the theatre" speakers | Altec Service Corporation |
| Todd-AO cameras | Mitchell Camera Corporation |
| Todd-AO recording | Metro Goldwyn Mayer, Inc. Culver City. |
| Todd-AO projector | Philips, Eindhoven, Holland |
| Todd-AO Cinema Installation | The Todd-AO Corporation |
| | |