| Abbreviation | Definition |
|---|---|
| AGM | Australian Glass Manufacturers |
| AGMA | American Gear Manufacturers Association |
| AGO | America's Great Outdoors |
| AGOC | Aramco Gulf Operations Company |
| AGOL | Ashapuri Gold Ornament Ltd |
| AGP | Alexander Global Promotions |
| AGP | Australian Game Processors |
| AGPF | A. R. T. International, Inc. |
| AGPS | Advanced Geo Positioning Solutions, Inc. |
| AGS | Adventure Game Studio |
| AGS | Avtomaticheskiy Granatomet Stankouyy |
| AGSA | Agencias Generales S A |
| AGSB | Altrincham Grammar School for Boys |
| AGSC | Azerbaijan Gas Supply Company |
| AGSI | Advanced Gaming Systems Inc |
| AGSI | Advantec Global Services Inc |
| AGTS | Audio Graphics Training Systems, Inc. |
| AGWS | Advanced Growing Systems, Inc. |
| AH | Americana House |
| AHA | Aim High Academy Inc. |