The biggest competitor for Five Guys is Chick-fil-A which has recently taken over the top spot in breakfast sandwiches. Although this may be surprising, many people are unaware of the fact that Five Guys has been around since 1986 and has grown to be a staple of American cuisine. In comparison, Chick-fil-A was established in 1967 and had developed some noticeable national expansion over the past few years.