Wholesaler

n. one who sells to retailers in large quantities; one who wholesales

Wholesaling is the sale of goods or merchandise to retailers, to industrial, commercial, institutional, or other professional business users, or to other wholesalers and related subordinated services. According to the United Nations Statistics Division, Wholesale is the resale (sale without transformation) of new and used goods to retailers, to industrial, commercial, institutional or professional users, or to other wholesalers, or involves acting as an agent or broker in buying merchandise for, or selling merchandise, to such persons or companies. Wholesalers frequently physically assemble, sort and grade goods in large lots, break bulk, repack and redistribute in smaller lots.
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Noun
1. someone who buys large quantities of goods and resells to merchants rather than to the ultimate customers
(synonym) jobber, middleman
(hypernym) distributor, distributer
(hyponym) meat packer, packer
(derivation) wholesale

An underwriter or a broker-dealer who trades with other broker-dealers, rather than with the retail investor.

a marketing intermediary engaged in buying from manufacturers in bulk to resell to retailers or industrial buyers in smaller quantities. See Full-Line Wholesaler; Limited-Line Wholesaler.