- Oxfam (India) Trust, New Delhi
- Oxfam GB in India, Kolkata
- Oxford Educational Academy, Vizianagaram
- OYSTER (Organization By Youth for Social Transformation and Environmental Recoup), Hyderabad
- Ozone Foundation, Kolhapur
- P N Khayal Education Foundation, Lucknow
- P.K. Multi – Purpose Society, Wokha
- P.R.S. Welfare Society, Sagar
- P.T.M. Charitable Foundation, Thiruvananthapuram
- Paa Foundation, Mumbai
- Paadhai Charitable Trust, Bangalore
- Paaniram Society, Udaipur
- PAATHAI, Thoothukkudi
- Paavan Education Trust, Danta
- PACE Organization – Progressive Action for Community Emancipation, Chittoor
- Pachhat Varg Vikas Manadal, Anand
- PACHHORA, Jaipur
- Pacific Club, Namchi
- Padam Ganesh Sewa Kalyan Samiti, Shivpuri
- PADCO – Prosperity Developmental Cause Organization, Moradabad
- Padhariya Yuva Sangharsh Manch, Anand
- Padho Likho Badho, Yamunanagar
- Padima Vidyasagar Samaj Seba Sangha, Purba Medinipur
- Padmanand Sarswati Trust, Delhi
- Padmashali Yuvajana Sangham, Sircilla
- Padmashree Society, Khurda
- Padmavathi Harijana Mahila Mandali, Hyderabad
- Padua Social Centre, Trivandurm
- PAGAH, Jammu
- PAHAL – People’s Action for Himalayan Awakening and Livelihood, Sirmour
- PAHAL – People’s Trust, Jaipur
- Pahal for Human Development, New Delhi
- Pahal Gramin Mahila Evam Bal Vikas Evam Shiksha Sewa Samiti, Gwalior
- Pahal India Foundation, Jaipur
- Pahal Jan Sahyog Vikas Sansthan, Indore
- Pahal Samajik Sanstha, Jhabua
- Pahal Sansthan, Chaksu
- Pahal Sansthan, Rajsamand
- Pahal Welfare Society, Agra
- PAHAL, Delhi
- PAHAL, Jaipur
- Pahal, Jalandhar
- PAHAL, Lucknow
- PAHAL, Nainital
- Pahchaan Foundation, Pilibhit
- Pahel Charitable Society, Kanpur
- Pahel Educational Health & Social Activities Society, New Delhi
- Pahel Society for Social Services, Jagdalpur
- PAID – People’s Action in Development, Chittoor
- Pain & Palliative Care, Hubli
