- Action for Man & Mankind, Dindigul
- Anbalayam Charitable Trust, Dindigul
- Anbarasi Social Action, Dindigul
- Annai Educational Trust, Dindigul
- Annai Trust, Dindigul
- ARUVI – Action for Rural Upliftment and Voice for Social Integration Trust, Dindigul
- Association of Welfare in Anthropology & Rural Development Trust, Palani
- Axiom Social Service Society, Dindigul
- BYASWA – Bharathy Youth and Social Welfare Association, Dindigul
- Cancer Survivors Care Trust, Dindigul
- Centre for Rural Reconstruction & Rehabilitation Trust, Dindigul
- Centre for Social Service & Research, Dindigul
- CHANARD – Centre for Human & Natural Resources Development, Dindigul
- Child Voice, Dindigul
- CLAAT – Centre for Learning, Organic Agriculture & Appropriate Technology, Kodaikanal
- Classic Foundation, Dindigul
- Community Development Foundation, Dindigul
- Coodu Trust, Dindigul
- Cost Trust, Dindigul
- CRD – Center for Rural Development, Dindigul
- Damien Leprosy Control Centre, Dindigul
- DDS – Dindigul District Hiv Positive Society
- Deed Trust – Dindigul Educational & Economic Development Trust
- DEEPAM – Dynamic Education & Empowerment Promoting Agency for Marginalized
- Eco Friendly Environment Conservation Trust
- EDIT – Environmental Education Development Institute, Dindigul
- Elayabharatham Suya Uthavikkulukkalin Kuttamaippu, Dindigul
- Gnanasavari, Dindigul
- Grama Reconstruction & Extensive Action Trust, Dindigul
- Green Earth Trust, Dindigul
- Home for Hope Trust, Dindigul
- Hopewell Trust, Dindigul
- Iraiva Foundation, Dindigul
- Jeeva Karunya Social Service Trust, Dindigul
- Kendra for Innovative Network at Grassroot Trust, Dindigul
- KRDA – Kodaikanal Rural Development Association, Dindigul
- Krisshnaraja Trust, Dindigul
- Leonard Hospital, Dindigul
- Lions Club of Neikkarapatty Charitable Trust, Dindigul
- Mahatma Gandhi Trust, Dindigul
- Manitham Trust, Dindigul
- Moon Rural Development Trust, Dindigul
- Muthamil Education & Rural Development Society, Dindigul
- Nature Trust, Dindigul
- NEEDS – Network of Education Environment Development
- New Life Trust, Dindigul
- NIRDA – National Integrated Rural Development Agency, Dindigul
- Nissi Foundation, Dindigul
- Oasis Foundation, Dindigul
- Oasis Foundation, Oddanchatram