Bangladesh Petroleum Corporation

Office of District Commissioner, Feni

University of Dhaka

National Institute of Population Research and Training (NIPORT)

Office of Civil Surgeon, Rajshahi

National Institute of Population Research and Training (NIPORT)

Land Record and Survey Department

Office of Civil Surgeon, Netrokona

Jatiya Kabi Kazi Nazrul Islam University -JKKNIU

CSS

Opsonin Herbal and Nutraceuticals Limited (OHNL)