- Action in Disabilities India, Tuticorin
- Anawim Trust, Tuticorin
- Anbu Ullangal, Tuticorin
- Annai Humanity Service Organisation, Thoothukudi
- ATWT – Annai Theresa Welfare Trust, Thoothukudi
- Award Trust, Tuticorin
- Awareness for Women & Action for Rural Development, Tuticorin
- Calvary Chapel Trust, Tuticorin
- Centre for Action Research and Empowerment, Tuticorin
- Chevaliar Roche Society, Thoothukudi
- Coastal Foundation, Tuticorin
- Community Development Project, Thoothukudi
- EMPOWER, Tuticorin
- Fishermen Welfare Trust, Tuticorin
- Friends Foundation, Kovilpatti
- Global Nature Trust, Thoothukudi
- Gomathy Foundation, Thoothukudi
- I – REWARD, Tuticorin
- J.R. Sahayamjebamalai, Tuticorin
- Jai Foundation, Tuticorin
- Johnson Memorial Trust, Tuticorin
- Life Trust, Thoothukudi
- Life Trust, Tuticorin
- NAATRU, Tuticorin
- PAATHAI, Thoothukkudi
- Puthiyathoru Vidhi Seivom, Tuticorin
- Ram Lakshmanan Charitable Trust, Thoothukkudi
- READS – Rural Educational Awareness Development Society, Tuticorin
- Rene Foundation, Thoothukudi
- Roseidhaya Educational & Charitable Trust, Thoothukudi
- Sindhu Social Service Trust, Thoothukkudi
- Thangakannika Welfare Society, Turticorin
- Vallalar Rehabilitation Service Centre, Tuticorin
- Vidiyel Trust, Tuticorin
- Winglobal Foundation, Tuticorin