Politics and Business magazines
- Textiles & Apparel
- Textron Lycoming Turbine Engine
- Tha Row Records
- Thai Airways International Ltd.
- Thai Airways International Public Company Limited
- Thai Union Frozen Products PCL
- Thales S.A.
- Thane International, Inc.
- Thanulux Public Company Limited
- The 3DO Company
- The Adams Express Company
- The Advertising Council, Inc.
- The Advisory Board Company
- The Aerospatiale Group
- The AES Corporation
- The Albert Fisher Group plc
- The All England Lawn Tennis & Croquet Club
- The Allied Defense Group, Inc.
- The American Cancer Society
- The American Society of Composers, Authors and Publishers (ASCAP)