| Abbreviation | Definition |
|---|---|
| ASY | Airport Systems International, Inc. |
| ATC | AMTEC, Inc. |
| ATJ | AT Plastics, Inc. |
| ATV | Arc International Corporation |
| ATX | A. T. Cross Company |
| AVD | American Vanguard Corporation |
| AVM | Advanced Magnetics, Inc. |
| AWS | Alba Waldensian, Inc. |
| AWX | Avalon Holdings Corporation |
| AXC | Ampex Corporation of Delaware |
| AYS | Acsys, Inc. |
| AZC | Azco Mining, Inc., of Delaware |
| AZC | Azco Mining, Inc., of Delaware (de-listed) |
| AZC | Azco Mining, Inc., of Delaware (de-listed) |
| AZL | Arizona Land Income Corporation |
| BAL | Balanced Care Corporation |
| BBH | Biotech Holders Trust |
| BCL | B L C Financial Services, Inc. |
| BCP | Balchem Corporation |
| BDE | Brilliant Digital Entertainment, Inc. |