1.  shipper(n = noun.person) - someone who ships goods;
is a kind of bourgeois, businessperson
has particulars: consigner, consignor
Derived form verb ship₁

2.  shipper(n = noun.group) - a company in the business of shipping freight;
is a kind of company
Derived form verb ship₁

   One who sends goods from one place to another not in the same city or town, esp. one who sends goods by water. [1913 Webster]

shipper, n. a person or company that sends or receives goods by ship, or US by land or air.

Etymology:
OE scipere (as SHIP)