Membership is open to individuals who endorse the mission of the society and who are professionally active in environmental sciences, geochemistry, soil sciences, microbiology, limnology, marine sciences, atmospheric sciences, and all other related fields.  The two year length of memberships runs in parallel with the biennial cycle of the International Symposium on Environmental Biogeochemistry.

The society sponsors discounted regular and student memberships for individuals that live and work in countries identified by the World Bank as having  the lowest two levels of gross national income per capita.

Eligible Level 1 Countries

Aghanistan, Bangladesh, Benin, Burkina Faso, Burundi, Cambodia, Central African Republic, Chad, Comoros, Congo, Dem. Rep., Eritrea, Ethiopia, Gambia, The Guinea, Guinea-Bissau, Haiti, Kenya, Korea, Dem. Rep., Kyrgyz Republic, Liberia, Madagascar, Malawi, Mali, Mozambique, Myanmar, Nepal, Niger, Rwanda, Sierra Leone, Somalia, South Sudan, Tajikistan, Tanzania, Togo, Uganda, Zimbabwe

Eligible Level II Countries

Armenia, Bhutan, Bolivia, Cameroon, Cape Verde, Congo, Rep., Cote d'Ivoire, Djibouti, Egypt, Arab Rep., El Salvador, Georgia, Ghana, Guatemala, Guyana, Honduras, India, Indonesia, Kiribati, Kosovo, Lao PDR, Lesotho, Mauritania, Micronesia, Fed. Sts., Moldova, Mongolia, Morocco, Nicaragua, Nigeria, Pakistan, Papua New Guinea, Paraguay, Philippines, Samoa, Sao Tome and Principe Senegal, Solomon Islands, Sri Lanka, Sudan, Swaziland, Syrian Arab Republic, Timor-Leste, Ukraine, Uzbekistan, Vanuatu, Vietnam, West Bank and Gaza, Yemen, Rep., Zambia

Note:  Membership payments are by credit card only, and are processed for ISEB by Paypal.