Manuel founded Viana Roofing and Sheet Metal in 1984, which is a construction and restoration company undertaking industrial, commercial and residential work. Currently, he employs over 100 staff, who are mostly of Portuguese backgrounds. Furthermore, he founded the JDC Property Management Group in 2001, a developmental and property management company. The company oversees the construction of management of commercial and residential buildings, including condominiums and residential properties. In 2011, he founded SIT Properties to develop and manage commercial and residential properties, with emphasis, also in the entertainment industry. Manuel is the original founder and builder of the Portuguese-Canadian Walk of Fame, which was created to recognize Portuguese- Canadians, who have made substantial contributions to the enhancement of Portuguese culture within Canada. Recently, the Portuguese-Canadian Walk of Fame celebrated its 7th year.