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

Jim Sinegal sat down with The Wall Street Journal to discuss how he built the $86 billion label Kirkland Signature and more.

If you’ve ever shopped at Costco, you’ve likely purchased something from its premium in-house brand, Kirkland Signature ... due to their longer-lasting power and reliability, making them ...

Costco has long been known as the go-to place for families who want both high quality and great value. While many of us flock there for bulk buys and generous return policies, the warehouse club ...

Three decades ago Costco created Kirkland Signature, the store brand it now uses to sell everything from paper towels to fresh sushi. At the time it was counterintuitive. Successful retailers ...

If you’ve ever shopped at Costco, you’ve likely purchased something from its premium in-house brand, Kirkland Signature, which has become a household name and a great way to save money.