Politics and Business magazines
- Allegheny Energy, Inc.
- Allegheny Ludlum Corporation
- Allegheny Power System, Inc.
- Allen Canning Company
- Allen Foods, Inc.
- Allen Organ Company
- Allen Systems Group, Inc.
- Allen-Edmonds Shoe Corporation
- Alliance and Leicester plc
- Alliance Atlantis Communications Inc.
- Alliance Boots plc
- Alliance Capital Management Holding L.P
- Alliance Entertainment Corp.
- Alliance Resource Partners, L.P.
- Alliant Techsystems, Inc.
- Allianz AG
- Allianz AG Holding
- Allianz Aktiengesellschaft Holding
- Allied Domecq PLC
- Allied Healthcare Products, Inc.