- DAYS – Dr. Ambedkar Yuvajana Sangam, Guntur
- Days Society, Rewa
- Dazzle Eduaction & Welfare Society, Kanpur
- Dazzle Educational & Rural Development Society, Agartala
- Dazzling Foundation, Chennai
- DC Varshney Institute of Law & Indology, Lucknow
- DD TV Video Training Centre, Hazaribagh
- DDM Engineers, Chennai
- DDS – Dindigul District Hiv Positive Society
- DE-Novo, Nagaon
- Deaf Aid Society, Bangalore
- Deaf Cricket Federation, Ludhiana
- Deaf Enabled Foundation, Hyderabad
- Dean Foundation – Hospice & Palliative Care Centre, Chennai
- Dearah Association for Social and Humanitarian Action, Kolkata
- Deb Adhikari Educational & Charitable Trust, Alipurduar
- Debabrat Bhuyan Socio-Educational Society, Guwahati
- Debagram Gram Unnayan Kendra, Nadia
- DEBATE, Bhopal
- Debnathpur Saptarsi Charitable Society, Nadia
- Deccan Development Society, Hyderabad
- Decimal Foundation, Mumbai
- DECO – Development Colaborative, Aurangabad
- Deed Trust – Dindigul Educational & Economic Development Trust
- Deeds for Needy Society, Krishna
- Deeksha Sewa Samiti, Mainpuri
- Deen Dayal Krishi Vikas Avam Anusandhan Samiti, Bhopal
- Deen Dayal Seva Samiti, Warangal
- Deen Dayal Upadhayay Welfare Society, Gorakhpur
- Deena Dayal Sevak Sangh, Ernakulam
- Deena Nath Seva Samiti, Sonebhadra
- Deenbandhu Educational Society, Jhajjar
- Deep Amar Jyoti, New Delhi
- Deep Annita Braille Institute, Kolkata
- Deep Foundation, Nandurbar
- Deep Griha Society, Pune
- Deep Jyoti School of Education Society, Panchkula
- Deep Jyoti Society, Palamu
- Deep Saikshik Evam Samajik Sanstha, Saharanpur
- Deep Sewa Sansthan, Bharatpur
- Deep Shikha GVS, Jhunjhunu
- Deep Swayam Rojgar Seva Sanstha, Kolhapur
- Deep Swayam Sevi Sasthan, Katihar
- Deep Trust, Delhi
- Deep Vidya Mandir Samiti, Dausa
- Deep Welfare Organisation, Delhi
- Deep Welfare Society, Jyotiba Phule Nagar
- Deepa Devi Manav Kalyan Sansthan, Siwan
- Deepak Charitable Trust, Vadodara
- Deepak Kahdi Gramoudhog Sewa Santhan, Ikauna