Costco’s private label, Kirkland Signature, is not your average bargain-bin brand, and calling it a “generic” label doesn’t quite cover it. Costco partners with big-name manufacturers ...

Costco co-founder Jim Sinegal sat down with The Wall Street Journal to discuss how he built the $86 billion label Kirkland Signature and why he was so reluctant to get into the gasoline business.

Boxes of Kirkland Signature Breakfast Blend K-Cups at Costco - Adam McCullough/Shutterstock ...