- Environmental Challenge Organisation (ECO)
 - ECO seeks to establish a voluntary movement creating opportunities, especially for youth, to be active and committed in environmental issues. - Nature Society
- Dedicated to the study, conservation, and enjoyment of natural heritage in Singapore, Malaysia, and the surrounding regions.
- Singapore Environment Council
- Aims to educate, inspire, and assit individuals, businesses, and interest groups to care for and protect the environment.
- Ministry of the Environment@
- National Environment Agency (NEA)@
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