AMEX has a long list of distinguished clients, including:

• The U.S. Agency for International Development
• The U.S. Department of Agriculture
  
• The Development Gateway Foundation
• The World Bank
• The African Development Bank
• The UN Development Program
• The UN Office for Project Services
• The UN Sudano-Sahelian Office
• The UN Environment Program
• The Free Trade Union Institute
• The International Fertilizer Development Center
• Mercy Corps International
• The U.S.-Polish Joint Commission
  
• National Institutes of Health