A
- AAA Cooper Transportation (Dothan)
- ADTRAN (Huntsville)
- Alabama Drydock and Shipbuilding Company (Mobile)
- Alabama National BanCorporation (Birmingham)
- Alabama Power Company (Birmingham)
- Alagasco (Birmingham)
- Altec Industries (Birmingham)
- American Cast Iron Pipe Company (Birmingham)
- AmSouth Bancorporation (Birmingham)
- Associated Grocers of the South (Birmingham)
- Atlantic Marine (Mobile)
- Austal USA (Mobile)
- Avocent Corporation (Huntsville)
Read more about this topic: List Of Alabama Companies