- AGRO – Action Group for Rural Organisations, Tirunelveli
- Ahal Foundation, Tirunelveli
- AIRD – Association for Integrated Rural Development, Tirunelveli
- Annai Trust, Thirunelveli
- Bright Coastal Development Organisation Trust, Tirunelveli
- CCVC – Centre for Cyber Victim Counselling, Tirunelveli
- CENTRE – Caussanel Enlighten Network for Tribal & Rural Empowerment, Tirunelveli
- Devine Moment Trust, Tirunelveli
- Dglare Trust, Tirunelveli
- Dr.Br. Ambedkar Buddhist Chritable Trust, Tirunelveli
- Eco Divine Community Service Trust, Tirunelveli
- Economic & Social Development Agency, Tirunelveli
- Ezhuchi Trust, Tirunelveli
- Face Trust, Tirunelveli
- Ganthji Trust of India, Tirunelveli
- Gates Trust, Tirunelveli
- Gospel for the People Charitable Trust, Tirunelveli
- Grace Educational & Rural Development Trust, Thirunelveli
- Grace Educational Trust, Thirunelveli
- Group Action Towards Environment & Society, Tirunelveli
- Guard Society, Tirunelveli
- Health Trust, Thirunelveli
- Hebron Educational & Charitable Trust, Tirunelveli
- Help Trust, Tirunelveli
- Human Rights & Juvenile Delinquent Protection Council, Tirunelveli
- Ideal Icons, Kuttalam
- IDHAYAM, Tirunelveli
- Indira Gandhi Memorial Trust, Tirunelveli
- International Educational Trust, Tirunelveli
- Kalaimagal Kalvi Sangam, Tirunelveli
- KUDISAI, Tirunelveli
- Life Vision, Tirunelveli
- Macro Trust, Tirunelveli
- Manam Foundation for Research & Rehabilitation of the Persons with Mental Retardation, Tirunelveli
- Mass Charitable And Educational Trust, Tirunelveli
- MASS Trust, Tirunlveli
- Mission Making Smile Charitable Trust, Tirunelveli
- Moonlit Trust, Tirunelveli
- Mother Maria Educational & Charitable Trust, Tirunelveli
- National Rural Develoment Foundation, Thirunelvelli
- Nava Jeevan Trust, Tirunelveli
- NESAMUDAN, Tirunelveli
- People Awareness Service Society, Tirunelveli
- Puratchi Trust, Tirunelveli
- Puthumai Trust, Tirunelveli
- READ – Rural Education Awareness & Development Society, Tirunelveli
- Regal Women Charitable Trust, Tirunelveli
- Resource Centre for Human Affairs, Sankarankovil
- RRO Trust, Tirunelveli
- RUPA – Rural Uplift & People Awareness Society, Thirunelveli