The McCormick Distilling Company is located in Weston, Missouri, and is one of the oldest in the US: in operation since 1856. The McCormick Gin was recently cited as among the top 10 selling gins in the U.S., and at times has been listed as McCormick London Dry Gin is a great everyday gin that is perfect for gin and tonics or the customary martini. Light, crisp and dry McCormick won't break the bank on good taste.