Affiliated societies (30) in 26 countries:
• Burkina Faso, Egypt, Mauritius, Zambia.
• Trinidad and Tobago, United States of America.
• Bangladesh, India (2), Israel, Japan, Kuwait, Pakistan, Sri Lanka.
• Cyprus, Denmark, Finland, France (2), Germany (3), Greece, Iceland, Lithuania, Netherlands, Norway, Sweden, Switzerland.
Associate societies (22) in 18 countries:
• Burkina Faso, Cameroon, Egypt, Mali, Niger, South Africa, Togo, Uganda.
• United States of America.
• Bangladesh, India, Japan, Philippines.
• Austria, Croatia, Serbia, United Kingdom of Great Britain and Northern Ireland.
Individuals in 52 countries. Membership countries not specified.