- Bhumiputra, Sitamarhi
- Bihar Gram Vikas Parisad, Sitamarhi
- Dalit Mahila Kalyan Sansthan, Sitamarhi
- Dalit Vikas Samiti Sah Kalyan Parishad, Sitamarhi
- Devi Shakti Seva Sansthan, Sitamarhi
- Jan-Kalyan Mission, Sitamarhi
- Janseva National Social and Welfare Organisation, Sitamarhi
- Lokhit Seva Sansthan, Sitamarhi
- Rani Nilam Jan Seva, Sitamarhi
- Raza Educational & Welfare Trust, Sitamarhi
- Sitamarhi Lok Seva Sansthan
- SOSO – Society of Social Opinion, Sitamarhi
- Swami Vivekanand Welfare Society, Sitamarhi