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.

Those shopping at Costco may have encountered the chain’s exclusive Kirkland Signature Synthetic Motor Oil and wondered how it compares to some of the best motor oil brands. While the brand is ...

Members are also lured in by promotions on Kirkland signature products. Kirkland has been Costco's signature power brand since its launch in 1995. Named after the retailer's former ...

But what if you could get the same cleaning power without the premium price tag? Enter Kirkland Signature, Costco's private label brand. Over the years, Kirkland has built a reputation for ...

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 co-founder Jim Sinegal sat down with The Wall Street Journal to discuss how he built the $86 billion label Kirkland Signature ... Sinegal learned the power of a store that has paying ...

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 ...