Eleven Members Countries
Afghanistan, Bangladesh, China, India, Indonesia, Nepal, Pakistan, the Philippines, Sri Lanka, Thailand and Vietnam.

Eight Observer Countries
Bahrain, Italy, Kuwait, Malaysia, Qatar, Republic of Korea, Saudi Arabia and the United Arab Emirates.

For the first time in September 2005, certain destination countries participated in the Ministerial Consultations.

International and Regional Organizations

Asian Development Bank (ADB), Association of Southeast Asian Nations (ASEAN), Department for International Development, UK (DFID), European Commission, Cooperation Council for the Arab States of the Gulf (GCC), International Labour Organization (ILO), United Nations Development Fund for Women (UNIFEM) and the World Bank are participants in this process.

The International Organization for Migration (IOM) has provided technical support to the Colombo Process since its inception and serves as its Secretariat.