The Company Behind Costco's Kirkland Brand Hard Seltzer - Chowhound

As of at least 2020, the address on the packaging of Kirkland Signature seltzer matches that of Patco Brands. On its own website, Patco describes itself as "a leader in private label beverage development and production," and a quick look at its portfolio reveals that that's no lie. Besides working with Costco (itself no small fish in the beverage market), Patco also has relationships with Target, Walmart, Kroger,…