| A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS | RV1 | 俄罗斯联邦 |
| Academician Abdulla Garayev Institute of Physiology | AZA | 阿塞拜疆 |
| Academy of Sciences of the Democratic People's Republic of Korea | KP0 | 朝鲜民主主义人民共和国 |
| Academy of Sciences of the Islamic Republic of Iran | IRT | 伊朗(伊斯兰共和国) |
| Acharya N.G. Ranga Agricultural University | INC | 印度 |
| Acta Natura et Scientia | TRT | 土耳其 |
| Action for Sustainable Efficacious Development and Awareness | INJ | 印度 |
| Addis Ababa University | ET1 | 埃塞俄比亚 |
| Aegean Agricultural Research Institute | TRC | 土耳其 |
| Afe Babalola University | NG4 | 尼日利亚 |
| Africa Nazarene University | KE8 | 肯尼亚 |
| Africa Scholarly Science Communications Trust | KE9 | 肯尼亚 |
| African Crop Science Society | UG3 | 乌干达 |
| African Journals OnLine | AJ0 | 南非 |
| African Union | ET2 | 埃塞俄比亚 |
| AfricaRice | QA1 | 科特迪瓦 |
| Afyon Kocatepe University | TRV | 土耳其 |
| Aga Khan University | PK1 | 巴基斯坦 |
| Agency for the Promotion of European Research | ES3 | 西班牙 |
| Agricultural Academy | BG4 | 保加利亚 |
| Agricultural Documentation Centre, Ministry of Agriculture and Irrigation | YE0 | 也门 |
| Agricultural Knowledge and Innovation Institute | SK0 | 斯洛伐克 |
| Agricultural Planning, Economics, and Rural Development Research Institute | IRD | 伊朗(伊斯兰共和国) |
| Agricultural Research and Education Organization | IR0 | 伊朗(伊斯兰共和国) |
| Agricultural Research Centre | LY0 | 利比亚 |
