| | Organization Name | |
| A Child's Trust Is Ours To Nurture (ACTION), Inc. | 5758 |
| AAI Charity Foundation, Inc. | 4738 |
| Aboitiz Foundation, Inc. | 2345 |
| ABS-CBN Lingkod Kapamilya Foundation, Inc. | 2346 |
| Adarna Group Foundation, Inc. | 5711 |
| Adventist Development and Relief Agency Foundation (ADRA), Inc. | 5510 |
| AHA Learning Center (Commodore Jose S. Francisco Foundation, Inc.) | 5756 |
| AIM Scientific Research Foundation, Inc. | 2358 |
| Ala-Ala Foundation (Jose Antonio Delgado Memorial Foundation, Inc.) | 2348 |
| American Chamber Foundation Philippines, Inc. | 2351 |
| Anargyroi: FMS Foundation, Inc. | 5782 |
| Andres Soriano Foundation, Inc., The | 2352 |
| Ang•Hortaleza Foundation, Inc. | 2436 |
| Angat Pinas, Inc. | 5765 |
| Angelo King Foundation, Inc. | 2353 |
| Antipolo Seminary Foundation, Inc. | 3448 |
| Antique Development Foundation, Inc. | 2471 |
| Asia Society Philippine Foundation, Inc. | 3450 |
| Asian Hospital Charities, Inc. | 5720 |
| Asiapro Foundation, Inc. | 5709 |
| ASKI Foundation, Inc. | 5766 |
| Assisi Development Foundation, Inc. | 2478 |
| Associate Missionaries of the Assumption (A.M.A.) Philippines Foundation, Inc. | 5714 |
| Assumption Alumnae Association, Inc. | 5715 |
| Assumption Iloilo Educational Foundation, Inc. | 5732 |