| AAA | Abdominal Aortic Aneurysm | |
| AAD | Annual Aggregate Deductible | |
| AAI | Accredited Adviser in Insurance | |
| AAI | Accredited Advisor in Insurance | |
| AAIC | American Alternative Insurance Corporation | |
| AAIC | American Agricultural Insurance Company | |
| AAIC | American Automobile Insurance Company | |
| AAID | Accredited Advisor in Insurance Designation | |
| AAII | Associate of the Australian Insurance Institute | |
| AAIP | Arizona Automobile Insurance Plan | |
| AAIS | American Association of Insurance Services | |
| AAJI | Asosiasi Asuransi Jiwa Indonesia (Indonesian: Life Insurance Association of Indonesia) | |
| ABIC | American Builders Insurance Company | |
| ABIE | Allstate Business Insurance Expert | |
| ABIL | Asset Backed Insurance Lending | |
| ABIS | Agri Business Insurance Services | |
| ABPI | American Business Personal Insurance | |
| ABSLI | Aditya Birla Sun Life Insurance | |
| ACFIC | Auto Club Family Insurance Company | |
| ACIC | American Commerce Insurance Company | |
| ACIG | American Contractors Insurance Group | |
| ACIG | Allied Cooperative Insurance Group | |
| ACII | Associateship of the Chartered Insurance Institute | |
| ACII | Associate Chartered Insurance Institute | |
| ACII | Associate of Chartered Insurance Institute |
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