The story
Founded in 1947 by Arthur Imperatore Sr. and his brothers Eugene, Arnold, George and Harold in West New York, New Jersey, it started as a local trucking business with a single surplus US Army truck, originally called "Imperatore Bros. Moving and Trucking." Later that same year they bought a second surplus truck, and then the name and two trucks of A&P Trucking Corp. for $800 from Albert Amorino, also of West New York. In the 1950s, after a few years of legal wrangling over the name by the A&P grocery chain, they simply added a trailing A.
From Wikipedia’s article on A-P-A Transport Corp., shared under CC BY-SA 4.0.3