| Abbreviation | Definition |
|---|---|
| ATSN | Artesyn Technologies |
| ATTC | A T and T Canada, Inc. |
| ATTP | Affordable Telecommunications Technology Company |
| ATTS | Atcorp, Inc., of New Jersey |
| ATVA | Altiva Financial Corporation |
| ATVI | Activision, Inc. |
| ATXI | Atrix International, Inc. |
| ATYR | American Tire Corporation |
| ATYT | A T I Technologies, Inc. |
| ATZ | Allied Technologies Group, LTD. |
| AUBD | Autobond Acceptance Corporation |
| AUBDP | Autobond Acceptance Corporation |
| AUBN | Auburn National Bancorp |
| AUDC | Audio Codes, LTD. |
| AUFR | Austin Farms Corporation |
| AUGI | American United Global, Inc. |
| AUGR | Auto- Graphics, Inc. |
| AUGS | Augment Systems, Inc. |
| AUGSW | Augment Systems, Inc. Warrants |
| AULT | Ault, Inc. |