Chick-fil-A

Chick-fil-A is America's highest-grossing fast food chain per restaurant, generating over $21 billion in US system sales from just 3,000 locations — more revenue per unit than McDonald's, Starbucks, or Chipotle. Founded in 1946 by S. Truett Cathy in Georgia, it is the only major chain that closes on Sundays, yet ranks #1 in customer satisfaction surveys for the ninth consecutive year.