| ACCPE - Asociación Centro Cultural Peruano Español "Cesar Vallejo" | | Europe | Spain | NGO/CSO | Culture, Migration General |
| ACD - Association for Community Development | | Asia | Bangladesh | | Development |
| ACEV - Mother Child Education Foundation | | Europe, Asia | Turkey | NGO/CSO | Children / Minors, Education / School system |
| ACIME - Instituto Superior de Ciências do Trabalho e da Empresa | | Europe | Portugal | Government Agency | Education / School system, Labour / Labour Conditions |
| ACLS - American Center for International Labor Solidarity | | North America | United States of America | NGO/CSO | Labour / Labour Conditions, Regional System - Americas |
| ACLU - American Civil Liberties Union | English | North America | United States of America | | Human Rights / Migrant Rights General, Regional System - Americas |
| ACMRO - Australia Catholic Migrant Refugee Office | | Australia and Pacific | | NGO/CSO | Asylum Seekers / Refugees, Human Rights / Migrant Rights General |
| ACNUR - Comite Español | Espagñol | Europe | Spain | | Human Rights / Migrant Rights General |
| ACODIP - Asociación de Cooperación al Desarrollo Integral de los Pueblos | | Europe | Spain | | Development |
| ACPD - Action Canada for Population and Development | | North America | Canada | NGO/CSO | Demographics / Population, Development, Migration General, Regional System - Americas |
