| Abbreviation | Definition |
|---|---|
| ACPI | Aviation Crime Prevention Institute |
| ACQI | Associate of the Chartered Quality Institute |
| ACRI | Australia China Relations Institute |
| ACTI | Arkansas Career Training Institute |
| ACTSI | Appalachian Clinical and Translational Science Institute |
| ACTSI | Atlanta Clinical and Translational Science Institute |
| ACTSI | Atlanta Clinical Translational Science Institute |
| ADAI | Addictions Drug Alcohol Institute |
| ADAI | Alcohol and Drug Abuse Institute |
| ADBI | Asian Developmennt Bank Institute |
| ADBI | Asian Development Bank Institute |
| ADEI | Advanced Dental Education Institute |
| ADEI | Automobile Dealer Education Institute |
| ADGI | Athens Development and Governance Institute |
| ADI | American Distilling Institute |
| ADLI | American Dance Legacy Institute |
| ADMI | American Dry Milk Institute |
| ADMI | American Dye Manufacturers Institute |
| ADMI | American Dye Manufactures Institute |
| ADMI | Autism Developmental Medicine Institute |