| Automatic Gas Accumulator | Academic & Science |
| Architectural Glass and Aluminum | Academic & Science |
| Association of Government Accountants (us) | Accounts and Finance |
| Association of Government Accountants | Accounts and Finance |
| Agadir | Airport Code |
| American Guild of Appraisers | Business |
| Akash Girish Abhishek | Business |
| Applied General Agency | Business |
| Annual General Adjustment | Business |
| U S Aggregates, Inc. | Business |
| Australian Gas Association | Business |
| American Gastroenterological Association | Business |
| Aquatic Gardeners Association | Business |
| Aga Rangemaster | Business |
| Aktiebolaget Gas Accumulator | Chemistry |
| American Genetic Association | Community |
| Annual General Assembly | Community |
| American Galvanizers Association | Community |
| Aquatic Gardeners Association's | Community |
| American Grassfed Association | Community |
| Accredited Gemologists Association | Community |
| American Gymnosophical Association | Community |
| Advanced Graphics Adapter | Computing |
| Advanced Graphics Architecture | Computing |
| Aggressive Gaming Alliance | Computing |
| AGA Token | Cryptocurrency |
| After Global Anarchy | General |
| Aktiebolaget Gasaccumulator Acknowlegements | General |
| Aktiebolaget Gasaccumulator Acknowledgements | General |
| Acute Gravity Attack | General |
| Air Ground Air | General |
| Adventure Game Aficionado | General |
| Audi Genuine Accessories | General |
| Automotive Grade Android | General |
| Appearance Group | General |
| Association Generale Automobile | General |
| Automotive Global Awards | General |
| Association of Global Automakers | General |
| Automotive Glazing Academy | General |
| Aktiengesellschaft Fur Automobilbau | General |
| American Gelbvieh Association | General |
| Australian Grain Accumulation | General |
| Anti-Gackt Association | General |
| American Gastroenterological | General |
| Armenian Greek Arabic | General |
| Anti Gliadin Antibodies | General |
| American Gas Association | Governmental |
| Association of Government Accounts | Governmental |
| AGRA CITY | Indian Railway Station |
| Academia General del Aire | International |
| Aus Gegebenen Anlaß | International |
| Asociación General de Agricultores | International |
| Asociación Guatemalteca de Aeromodelismo | International |
| Appropriate for Gestational Age | Medical |
| Alignment Guide Assembly | Military and Defence |
| Army Game Administrators | Military and Defence |
| Australian Garrison Artillery | Military and Defence |
| Army Gliding Association | Military and Defence |
| Army Game Admins | Military and Defence |
| African Governance Architecture | Regional |
| Alaska Golf Association | Regional |
| Agadir, Morocco | Regional |
| Anthracite Golf Association | Sports |
| American Gaming Association | Sports |
| American Go Association | Sports |
| American Gymnastics Association | Sports |
| Arizona Golf Association | Sports |
