Inserra Supermarkets Inc. is a supermarket chain that operates in New York an New Jersey in the United States. Inserra Supermarkets is a member of the ShopRite retailers' cooperative and therefore does business as ShopRite. Inserra is headquartered in Mahwah, New Jersey, and operates approximately 22 stores. It is a family owned business and is one of the 500 largest private companies in the United States.