| A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS | RV1 | Российская Федерация |
| Academician Abdulla Garayev Institute of Physiology | AZA | Азербайджан |
| Academy of Sciences of the Democratic People's Republic of Korea | KP0 | Корейская Народно-Демократическая Республика |
| Academy of Sciences of the Islamic Republic of Iran | IRT | Иран (Исламская Республика) |
| Acharya N.G. Ranga Agricultural University | INC | Индия |
| Acta Natura et Scientia | TRT | Турция |
| Action for Sustainable Efficacious Development and Awareness | INJ | Индия |
| Addis Ababa University | ET1 | Эфиопия |
| Aegean Agricultural Research Institute | TRC | Турция |
| Afe Babalola University | NG4 | Нигерия |
| Africa Nazarene University | KE8 | Кения |
| Africa Scholarly Science Communications Trust | KE9 | Кения |
| African Crop Science Society | UG3 | Уганда |
| African Journals OnLine | AJ0 | Южная Африка |
| African Union | ET2 | Эфиопия |
| AfricaRice | QA1 | Кот-д`Ивуар |
| Afyon Kocatepe University | TRV | Турция |
| Aga Khan University | PK1 | Пакистан |
| Agency for the Promotion of European Research | ES3 | Испания |
| Agricultural Academy | BG4 | Болгария |
| Agricultural Documentation Centre, Ministry of Agriculture and Irrigation | YE0 | Йемен |
| Agricultural Knowledge and Innovation Institute | SK0 | Словакия |
| Agricultural Planning, Economics, and Rural Development Research Institute | IRD | Иран (Исламская Республика) |
| Agricultural Research and Education Organization | IR0 | Иран (Исламская Республика) |
| Agricultural Research Centre | LY0 | Ливия |
