SOURCE: 1964 World's Fair Information Manual
- Abbott Laboratories
- Airborne Instruments Laboratory - Divison of Cutler-Hammer Inc.
- American Cancer Society
- American Chemical Society
- Ames Company, Inc. - A Subsidary of Miles Laboratories
- General Aniline and Film Corporation
- Hearing Aid Industry Conference
- Interchemical Corporation
- International Telephone and Telegraph Company
- Martin Marietta Corporation
- U. S. Atomic Energy Commission
- Upjohn Company
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