- Embassy of United States of America
- British High Commission, Dhaka.
- Royal Embassy of Kingdom of Saudi Arabia
- Bangladesh Bank
- Bangladesh Biman
- Titas Gas and Padma Oil Company
- Dr. Wahab’s Clinic, Baridhara, Dhaka.
(Immigration Consultant for USA, UK Canada and New Zeland)
Affiliation with National and International Academic Organizations
- Member — American Academy of Dermatology
- Member — International Society of Dermatology.
- Life member — Bangladesh Society of Dermatology.
- Faculty member — Rita Skin Foundation, Kolkata, India.
- Life Member — Indian Association of Dermatologist, Venereologist and Leprologist.
- Associate Fellow — International College of Angiology New York USA.
- Life Member — American Medical Society of Vienna.
- Fellow Royal Society of Health, London.