| Abbreviation | Definition |
|---|---|
| APWU | American Postal Workers |
| APWU | American Postal Workers Union |
| ARCD | Army Reserve Careers Division |
| ARTIBA | Artificial Intelligence Board of America |
| ARW | Adventist Retired Workers |
| ASC | Academic Subspecialist Careers |
| ASCW | Adult Social Care Workers |
| ASWA | African Sex Workers Alliance |
| ATCO | Advocacy Training Careers and Opportunities |
| ATWU | Amalgamated Textile Workers' Union |
| ATWU | Australian Textile Workers' Union |
| ATWU | Australian Timber Workers Union |
| AUAW | Amalgamated Union of Asphalt Workers |
| AUESALI | CHG IN_5V |
| AUFW | Amalgamated Union of Foundry Workers |
| AUWU | Australian Unemployed Workers' Union |
| AVCC | Anderson V Career Campus |
| AWA | Affiliated Workers Association |
| AWANA | Approved Workers Are Not Ashamed |
| AWARE | Advancing Women’s Awareness Regarding Employment |