Canned and Frozen Vegetables, Canned Beans, Frozen Pretzels, and More! Hanover Foods Corporation is the largest independently owned food company in the eastern United States. We produce millions of cases of frozen vegetables, frozen pretzels, canned vegetables, canned beans, refrigerated, fresh, glass-packed, and snack food items. For over 85 years, Hanover Foods Corporation has been an active leader in the growing, processing, packaging, marketing and distribution of an amazing variety of food products. Hanover Foods exceeds consumer demands in the retail, food service, fresh home meal replacement, private label, military, club store and industrial venues.