Now a third of Costco’s annual sales, store brand Kirkland is a draw for shoppers and a negotiating tool with suppliers.

Savvy shoppers know that the best-priced items at Costco often fall under the store's in-house brand, Kirkland Signature.

Costco's private label brand, Kirkland Signature, went against industry standards when it launched in 1995. But the move ...

When people talk about Costco, the first thing that likely comes to mind is its wide range of products—from groceries to ...

Costco Wholesale has reportedly stopped selling a non-dairy milk option at its warehouses, disappointing fans of the Kirkland ...

Costco (COST) created store brand Kirkland Signature three decades ago and it is now a linchpin the company’s success that accounts for roughly ...