Politics and Business magazines
- ACNielsen Corporation
- Acorn Products, Inc.
- Acosta Sales and Marketing Company, Inc.
- Acsys, Inc.
- Actelion Ltd
- Action Performance Companies, Inc.
- Acuity Brands, Inc.
- Acushnet Company
- Acxiom Corporation
- Adams Golf, Inc.
- Adaptec, Inc.
- Adecco S.A.
- ADESA, Inc.
- Adia S.A.
- Adidas AG
- Adidas Group AG
- adidas-Salomon AG
- Aditya Birla Group
- Administaff, Inc.
- Adolf Würth GmbH & Co. KG