Wholesaling is the business of buying goods in large quantities directly from manufacturers or distributors, then reselling those goods to retailers, other businesses, or professional buyers rather than to individual consumers. The wholesaler sits between the producer and the retailer in the supply chain, earning a margin on the price difference between what it pays and what it charges its customers.
Think of wholesaling like a bulk buyer at a food market who purchases entire pallets to supply the neighborhood stores rather than shopping for a single household.
Manufacturers want to sell in large volumes and do not want to manage thousands of small retail relationships. Retailers want reliable access to a wide product assortment without the complexity of sourcing from hundreds of manufacturers. Wholesalers solve both problems simultaneously. They aggregate demand from retailers, provide storage and logistics infrastructure, and break bulk shipments into quantities that smaller buyers can actually use.
This function reduces transaction costs across the entire supply chain. Without a wholesale layer, a grocery store would need direct sourcing relationships with every farm, cannery, and food processor it carries. That infrastructure cost would either drive small retailers out of business or push retail prices higher.
Wholesaling sells to businesses. Retailing sells to the end consumer. The distinction affects pricing, tax treatment, regulatory requirements, and the minimum order quantities involved. A business buying wholesale typically pays less per unit than a consumer buying retail, but must purchase in quantities large enough to justify the wholesaler's handling cost.
In the United States, wholesale transactions are generally exempt from state sales tax when goods are purchased for resale, because the sales tax will be collected at the point of final consumer sale. Wholesale buyers typically provide a resale certificate to their suppliers to document this exemption.
Online platforms like Alibaba for global sourcing and Faire for specialty retail brands have compressed the traditional wholesale cycle. Retailers can now source directly from manufacturers through digital marketplaces, reducing their dependence on traditional merchant wholesalers. Direct-to-consumer brands have eliminated the wholesale layer entirely, selling at retail prices without sharing margin with distributors.
Traditional wholesalers have responded by adding value-added services: custom packaging, marketing support, data analytics, and inventory management programs. The wholesalers that survive disintermediation are those that provide more than physical distribution.
Sources:
https://www.census.gov/topics/business-economy/wholesale-trade.html
https://www.irs.gov/businesses/small-businesses-self-employed/wholesale-trade