CCC (Crane Carrier Corporation) specializes in "vocational trucks" and yard mules (also called terminal tugs and a score of other things.)
Vocational trucks these days are largely garbage trucks, but some other special purpose vehicles too.
One CCC that I see almost daily belongs to Dover Flour and shuffles trailers at their loading bays. It rarely leaves the property, and usually seems to be on the move. Today I was able to capture it sitting still for while.