McAllister Towing of Philadelphia is a part of McAllister Towing, which is one of the oldest and largest marine towing and transportation companies in the United States. Founded in 1864, McAllister Towing operates a fleet of more than 70 tugboats and over 10 barges along the entire East Coast. The parent company maintains operations in Maine, New York, Virginia, New Jersey, North Carolina and South Carolina, as well as Puerto Rico. It provides ship docking, bulk transportation, and general harbor and coastal towing services. The parent company serves nearly 1,000 steamship companies worldwide. McAllister Towing also offers liquid natural gas transportation services.