National Sales Corporation Cart (0 items)Login Search: About us National Sales Corporation (NSC) is wholesale grocer and importer located in Los Angeles and has been in business... in American and Hispanic brand name products. We are one of the Frontier companies in wholesale distribution throughout the Western United States. Quality, value, and service... are how NSC maintains its leadership in the wholesale distribution industry. Our company serves approximately 2,000 supermarkets including convenience stores, independent grocery stores...