| Authorized Academic Training Provider | Academic & Science |
| Authorized Academic Training Program | Academic & Science |
| Asian American Theater Project (Stanford) | Academic & Science |
| Australian Accounting & Taxation Professionals | Business |
| Alice And The Pirates | Business |
| American Academy Of Tax Practice | Business |
| All America Threaded Products | Business |
| American Association for Technology in Psychiatry | Business |
| American Association of Teachers of Persian | Business |
| African American Theme Program | Community |
| Alabama Association of Testing Professionals | Community |
| Azerbaijan Austrian Tourism Programme | Community |
| Asian American Tutorial Project | Community |
| Agribusiness Applied Technology Park | Computing |
| Authorized Academic Training Partner | Computing |
| Adobe Authorized Training Partner | Computing |
| AgriFood Advanced Training Partnership | General |
| All About The Presentation | General |
| Auction Agent Transfer Protocol | General |
| Advanced Available To Promise | General |
| Americans Against the Tea Party | General |
| Apple Authorized Training Provider | General |
| Arizona Addiction Treatment Program | General |
| Algorithm Analysis and Task Prediction | General |
| Average Allocated Transaction Percentage | General |
| Attorney Assistant Training Program | Governmental |
| Asian American Theater Project | International |
| Acquired Amegakaryocytic Thrombocytopenic Purpura | Medical |
| Anesthesia Assistant Training Program | Medical |
| All About The Paper | Messaging |
| African American Theatre Program | Regional |
