Kirkland Signature
"Kirkland Signature" is Costco's store brand, otherwise known in the retail industry as a "house brand", "own-brand", or "private label". It is found at Costco's website, Costco warehouses, and on Amazon.com and is trademarked by the company. The name is derived from the location of Costco's corporate headquarters, in Kirkland, Washington, from 1987 to 1996.
Costco introduced Kirkland Signature as its house brand in 1995. The idea was to identify categories in which a private label product could provide brand name quality at discounted prices.
To counteract the consumer confidence problem common in store branding, Kirkland Signature occasionally employs co-branding. According to Costco, while consumers may be wary of same-store-branding, they are less likely to be wary of brands that they are familiar with and trust.
Costco has a wide variety of changing inventory and is known for carrying products for a time, then discontinuing them or using them as seasonal products.