Gabriel Gambo Nmadu is a pharmacist and an astute salesman. He was a Pharmaceutical Sales Representative for many years. He also worked in Equitorial Trust Bank as ATM and Money Transfer Officer in charge of all the northern branches before setting up his own business outfit, Business Blueprint Solutions, a training, marketing and business consulting firm.

He attended Kaduna Business School's World Bank sponsored Entrepreneurship and New Venture Creation programme, and many more trainings at other centres. He is a member of National Institute of Marketing of Nigeria. He is an author with three titles to his name. He is happily married.

He has published a book titled Anglicanism At A Glance. He has two other books due in May, 2011.