- Arumai Illam, Nagapattinam
- Avvai Village Welfare Society, Nagapattinam
- Eega Trust, Nagapattinam
- FACE – Federation of Associations for Community Empowerment, Nagappattinam
- Green Vision, Nagapattinam
- Hope Charitable Trust, Nagapattinam
- Hope India Foundation, Nagapattinam
- Mother Teresa Women & Children & Female Welfare Organisation, Nagapattinam
- Peace Foundation, Nagapattinam
- PEACE, Nagappattinam
- Pease Movement of, Nagappatinam
- People Education for Development Association, Nagai
- People Social Development Society (PSDS NGO), Nagapattinam
- Phoenix Federation, Nagapattinam
- Prince of Peace Charitable Trust, Nagapattinam
- Priyam Cultural Development Trust, Nagapattinam
- Rajagopalu Educational & Charitable Trust, Nagapattinam
- Rajagoplu Educational & Charitable Trust, Nagappattinam
- SEED – Society for Education & Economic Development, Nagapattinam
- SMARD – Society for Modern Approach of Rural Development, Nagappatinam
- Social Action for Education, Nagapattinam
- Social Benefits for Mass Trust, Nagapattinam
- Social Faith Trust, Nagai
- Social Faith Trust, Nagapattinam
- Vanavil Trust, Nagapattinam
- Velankanni Helping Hands Charitable Trust, Nagapattinam