Lindt USA is the leading premium chocolate manufacturer in the United States, headquartered on an 800,000-square-foot campus in Stratham, New Hampshire. Headquarters & Facility: Located in Stratham, New Hampshire, since 1989. Campus Features: Includes a 500,000-square-foot production facility, research and development, quality assurance labs, a sensory lab, and climate-controlled warehouses. Production: Grows from an initial 1,400 tons in 1989 to producing over 50,000 tons of chocolate per year.