Question: is white castle and krystal the same company

Answer: No, Davenport had visited White Castle restaurants, taking notes of successful features, before setting forth on his own venture. Davenport and Sherrill set up the first Krystal at the corner of 7th and Cherry Streets in Chattanooga. The first Krystal was a modular building constructed in Chicago and shipped to Chattanooga for final installation. The oldest Krystal still in operation is located on Cherokee Boulevard in Chattanooga's Northshore District. Krystal is the seventh or eighth-oldest hamburger chain in the United States (the oldest being White Castle) and the oldest in the South.