[6] His paternal grandfather was an entrepreneur who in 1950 founded the Société Commerciale et Agricole Byblos Bassil Frères & Co., a Lebanese company involved in natural silk and leather tanning, and in agricultural and consumer lending activities.
[11][12] In 1989, he moved to Belgium, where he held the position of Credit and Country Marketing Officer at Byblos Bank Europe.
In addition to being a banker, Bassil is an avid collector of historical postal artifacts with abiding interests in archaeology and history.
[24][25] In 2023, he published a new book titled "Mail in the Levant BEIRUT a case study in the early age of steamship & globalization (1835/1914)".
The book examines Beirut, as a case study during Ottoman times when the emerging technologies of steam shipping and the modern postal system accelerated the flow of trade, knowledge, and travels.