- Savitri Jan Kalyan Sewa Sansthan, Gonda
- Savitriba Jyotirao Phule Trust, Delhi
- Savitribai Phule Sevabhavi Sanstha, Latur
- Sawali Pratishthan, Parbhani
- Sawali Samajkalyan Bahuddeshiya Sanstha, Osmanabad
- Sawami Vivakanand Yuva Parisad, Jaipur
- Sawami Vivekanand Vidhya Bharti Trust, Amreli
- Sawan Ram Jai Gopal Sanstha, Delhi
- SAWAN, Siwan
- Sawarker Smriti Sansthan, Rajasthan
- Sawera, Amritsar
- SAWERA, Bhagalpur
- Sawi – Samajik Jagriti Ewan Kalyan Sansthan, Lucknow
- Sawitri Foundation, Latur
- SAWS – Shri Astha Welfare Society, Ambala
- SAWS – Sunehera Aaj Welfare Society, Agra
- Saya Bal Vikas Samiti, Gwalior
- Sayadri Foundation, Parbhani
- Sayadri Samajik and Shaikshnik Sanstha, Nasik
- Sayed Reza Foundation, Murshidabad
- Sayed Shah Farzand Ali Educational & Social Foundation of India, Bareilly
- SBMS – Seth Bagan Mahila Sangha, Kolkata
- SC, ST Welfare Society, Spsr Nellore
- SCAN – India, Panaji
- SCAN – Society for Community Action Network-India, Chittoor
- SCDSS – Social & Cultural Development Service Society, Warangal
- SCERA – Society for Computer Education in Rural Area, Kanpur
- SCHANDAK, Ichhawar
- Schduled Castes & Schduled Tribes Rural Development & Socio-Economics Welfare Association, Paschim Medinipur
- SCHEEM, Kolkata
- Scholar Technical & Vocational Society, Satna
- Scholar’S Legacy A Global Educational Trust, Delhi
- Scholastic Association for Fundamental Empowerment, Delhi
- School for Deaf-Mutes Society, Ahmedabad
- School Game Development Foundation, Ahmednagar
- School of Fine Art, Bargarh
- School of Human Genetics & Population Health, Kolkata
- School Teachers Fedaration Andhra Pradesh
- Science Awareness Association for Rural People, Virdhunagar
- Science Communicators Forum, Kolkata
- Scientech Eco Foundation, Indore
- Scientific Technical Education & Agricultural Development, Silchar
- SCODWES, Sirsi
- SCON – Society for Conservation of Nature, Etawah
- SCOP Foundation, New Delhi
- SCOPE – Social Consciousness on People & Environment, Koraput
- Scope – Society for Career Oriented Programme & Education, Cuttack
- SCOPE – Socio Cultural Organisation to Promote Equality, Kolkata
- Scope Education Society, Nainital
- SCOPE, Kangra
