| AAM | Academy of Ancient Music |
|---|---|
| ABA | Accredited Business Accountant |
| ABR | Australian Business Register |
| ABS | Adaptive Business Systems |
| ACM | Academy of Country Music |
| AMP | Amiga Music Preservation (skr.) |
| BBA | Bachelor of Business Administration |
| BBA | Bachelor of Business Administration (skr.) |
| BBB | Better Business Bureau |
| BBS | Bachelor of Business Studies |