- Academic Press Inc.2
- Akademiai Kiado ZRt.2
- AME Publishing Company2
- American Institute of Mathematical Sciences2
- American Mathematical Society2
- AMER SCIENTIFIC PUBLISHERS2
- AMG Transcend Association4
- Asian Pacific Organization for Cancer Prevention5
- Association for Dental Sciences of the Republic of China2
- Association of Basic Medical Sciences of FBIH2
- Association of Clinical Biochemistry Specialists (Klinik Biyokimya Uzmanlari Dernegi)2
- AVES2