- Birbhum Thupsara Manab Unnayan Samiti, Birbhum
- Birbhum Titli, Birbhum
- Birbhumir Gramen Unnayan Society, Birbhum
- BIRD – Board for Intigrated Rural Development, Bhubaneswar
- BIRD – Board of Integrated Rural Development, Krishna
- BIRD, Barmer
- BIRDS – Backward Integrated Rural Development Society, Hyderabad
- BIRDS – Bharati Integrated Rural Development Society, Kurnool
- BIRDS – Bijapur Intiggreted Rural Development Society, Bagalakot
- Birds Bidar Rural And Urban Development Education Society, Bidar
- Birds Krishi Vigyan Kendra, Belgaum
- Birlapur Pratibandhi Samity, South 24 Parganas
- Bishanbimla Educational Trust, Jammu
- Bishwa Bandhan Foundation (INDIA) For Cerebral Palsy, Kolkata
- Bishwa Seva Pratisthan, Bhubaneswar
- BISHWASS – Bharat Institute of Social Health Works & Social Service, Deogarh
- Biswa Seva Pratisthan, Cuttack
- BISWA, Sambalpur
- BISWAAS, Cuttack
- Biswabandhu Mission, Burdwan
- Biswakalyan Yuva Sangathan, Berhampur
- Bit Education Society & Welfare Council, Mewat
- Bizpur Backward Welfare Organization, North 24 Parganas
- BJM and RBM Charitable Trust, Rajkot
- BJS – Bhartiya Sangharsh Shakti, New Delhi
- BKJKS – Badrish Kirti Jan Kalyan Samiti, Chamoli
- BKP Sun Foundation, Barrackpore
- Black Berry Program, Guntur
- BLESS – Badrinarayan Lal Educational & Social Development Society
- BLESS – Badrinarayan Lal Educational & Social Development Society, New Delhi
- Bless Computer Education Society, Bastar
- BLESS, Cuddalore
- BLESS, Srikakulam
- Blessing India Charitable Trust, Delhi
- Blessing Rock Education and Development Trust (BREAD Trust), Kanchipuram
- Blessing Society, New Delhi
- Blessings Life Foundation Trust, Kanyakumari
- Blind People’s Association, Ahmedabad
- Blind Peoples Welfare Association, Mumbai
- BLITZ, Bangalore
- Blood Bank Charitable Society, Agra
- Blood Cross Society, Hyderabad
- Blood Donors Council, Cuttack
- Bloodline, Thane
- Blooming Beacon, Chennai
- Blossom Education, Mansa
- Blossom Trust, Virudhunagar
- BLOSSOM, Madurai
- Blue Angels Charitable Society, Mysore
- Blue Bird Welfare Organisation, Bangalore
