Prem is a brand of canned lunch meat similar to Spam first introduced in 1939 by the original Swift & Company in the United States. The brand is currently owned by Zwanenberg Food Group USA. [1] In Canada, Prem continues to be sold under the Swift umbrella brand and both trademarks are currently owned by Maple Leaf Foods. [2] Prem was shipped to England during World War II. [3]