Pizza has been a staple of the American diet since the late 19th century and has grown into a multibillion-dollar industry.

Stacker examined PMQ Pizza Magazine's 2025 Pizza Power report to round up the 30 biggest pizza chains nationwide based on ...

For example, pepperoni, sausage ... The restaurant was founded by William Theisen in 1973 and later acquired by Pillsbury. In 1996, Ronald Gartlan bought out the company, where he serves as ...