| ASSABIL |
| Associação Cultural dos Povos da Amazônia (ACPA) |
| Associated British Foods Plc |
| Association 7ème dimension |
| Association apollon pour la culture et les arts |
| Association CARE International |
| Association club d'athlétisme, handicapés, natations et sport nautiques de jendouba |
| Association Culturelle Nadhour |
| Association de la Culture Alternative Dhajja |
| Association de Spéléologie et d'Escalade de Zaghouan |
| Association for the Physically Disabled of Kenya |
| Association of British Orchestras (The) |
| Association of Teachers of English in Rwanda (ATER) |
| Association of Teachers of English in Senegal (ATES) |
| Association of Youth Organizations Nepal |
| Association Tadhamen du Sport et Loisir |
| Association Think Tanger |
| Asteria Aerospace |
| AstraZeneca Pharma India Limited |
| AstraZeneca Plc |
| ASUSTeK Computer Inc |
| Asylum Justice Ltd |
| Atkins |
| Atlanta Rose Limited |
| Attitude is Everything |