| Abbreviation | Definition |
|---|---|
| AFY | Avalon Fleet Yards |
| AFYI | Atlantic Fine Yarns, Inc. |
| AG | Aktien Gesellschaft |
| AG | Architectural Group |
| AG | Atri Graphics |
| AG | Australia Group |
| AG | Automotive Group |
| AGA | Akash Girish Abhishek |
| AGAD | Arabian Group for Advancement and Development |
| AGBG | Amazing Grace Beauty Group |
| AGC | Alexandre Group Company, Inc. |
| AGC | Alexandre Group Company, Incorporated |
| AGC | American Gaming Console |
| AGC | American Gasket Company |
| AGC | American General Contractors |
| AGC | Asahi Glass Company |
| AGCC | Arkansas Glass Container Corporation |
| AGCL | Assam Gas Company Ltd |
| AGCO | Allis Gleaner COmpany |
| AGCO | Allis Gleaner COmpany or |