Established in 1973, Trans-Phos is a family-owned and operated firm that maintains dump truck operations. It offers a range of trucking services for the phosphate and construction industries. The firm maintains operations in Polk, Hillsborough, Pasco, Manatee and Pinellas counties in Florida. Trans-Phos participates in a variety of fleet safety contests. It is a member of the American Trucking Association and the Tampa Area Safety Council.