ISES has been serving the needs of the renewable energy community since its founding in 1954. A UN-accredited NGO present in more than 50 countries, the Society supports its members in the advancement of renewable energy technology, implementation and education all over the world. Its goals include:
* Towards a Sustainable World:Encouraging the use of Renewable Energy everywhere, through appropriate technology, scientific excellence, social responsibility, and global communication.
* Realising a Global Community: Bringing together industries, individuals and institutions in support of Renewable Energy technologies - through communication, co-operation, support and exchange.
* Supporting Development: Applying practical projects, technology transfer, education, training and support to the issue of global energy development.
* Supporting the Science of Solar Energy: Stimulating and encouraging both fundamental and applied research in solar energy.
* Contributing to Growth: Ensuring individual and community growth through support of private enterprise and empowerment in the area of Renewable Energy.
* Information and Communication: Rapid access to information through tailor-made communication and exchange platforms utilising modern technology.
ISES is a multi-faceted, global membership organisation. With its long history and extensive technical and scientific expertise provided by its members, the Society is a modern, future-oriented non-governmental organisation (NGO). Clearly defined goals, extensive communication networks and practical, real-world projects are the hallmarks of ISES.

Major Groups:
International Solar Energy Society (Germany)

Other:
Asociación Argentina de Energías Renovables y Ambiente (ASADES) (Argentina)
Australian and New Zealand Solar Energy Society (ANZSES) (Australia)
ISES Austria (Austria)
ISES Arab Section (Bahrain)
ISES Belgium (Belgium)
ISES do Brasil (Brazil)
ISES Bulgaria (Bulgaria)
Solar Energy Society of Canada INc. (SESCI) (Canada)
Chinese Solar Energy Society (CSES) (China)
Asociación Costarricense de Energia Solar (ACES) (Costa Rica)
ISES Croatia (Croatia)
ISES Cyprus (Cyprus)
Czechoslovak Solar Energy Society (CSSE) (Czech Republic)
Danish Solar Energy Society (DKSES) (Denmark)
Egyptian Solar Energy Society (ESES) (Egypt)
ISES South Pacific (Fiji)
ISES Finland (Finland)
ISES France (France)
ISES Georgia (Georgia)
Deutsche Gesellschaft für Sonnenenergie e.V. (DGS) (Germany)
Ghana Solar Energy Society (GHASES) (Ghana)
ISES Greece (ELETHELEN) (Greece)
Hungarian Solar Energy Society (HUSES) (Hungary)
Solar Energy Society of India (SESI) (India)
Solar Energy Society of Ireland (SESIE) (Ireland)
ISES Israel (Israel)
ISES Italia (Italy)
Japansese Solar Energy Society (JSES) (Japan)
Kenyan Solar Energy Society (Kenya)
ISES Latvia (Latvia)
Lebanese Solar Energy Society (LSES) (Lebanon)
Asociación Nacional de Energía Solar (ANES) (Mexico)
Nepal Solar Energy Society (NPSES) (Nepal)
ISES Netherlands (Netherlands)
ISES Nigeria (Nigeria)
Norwegian Solar Energy Society (NSES) (Norway)
ISES Pakistan (Pakistan)
Philippine Solar Energy Society (PHSES) (Philippines)
Polish Solar Energy Society (PTES-ISES) (Poland)
Sociedade Portuguesa de Energia Solar (SPES) (Portugal)
Korean Solar Energy Society (KSES) (Republic of Korea)
Romanian Solar Energy Society (SRES) (Romania)
ISES Russia (Russian Federation)
Solar Energy Society of Central Africa (SESCA) (Rwanda)
ISES Slovenia (Slovenia)
Sustainable Energy Society of Southern Africa (SESSA) (South Africa)
Asociación Espanola de Energia Solar (AEDES) (Spain)
Solar Energy Association of Sweden (SEAS) (Sweden)
Swissolar (Switzerland)
ISES Turkey (Turkey)
ISES Ukraine (Ukraine)
The UK Solar Energy Society (UK-ISES) (United Kingdom of Great Britain and Northern Ireland)
American Solar Energy Society (United States of America)
Solar Energy Society of Zimbabwe (SESOZ) (Zimbabwe)