A third$-$party logistics $(3$PL$)$ firm can best be described as:

Negotiating rates for shipments and booking space for their customers on vehicles and combining small loads from various shippers into larger loads. It does not own its own transportation vehicles.

One$-$stop shipping solutions, which involve transporting products, completing import and export paperwork, receiving and storing products and materials, inventory management, warehousing, and fulfillment.

A company that owns its own fleets of trucks, ship and airplanes.

A company that completes import and export paperwork for their client.