Pieology was founded in 2011 in Fullerton, California, only blocks from the CSU Fullerton campus by friends Carl Chang and James Markham. Markham had been involved in the creation of Mod Pizza. The company creates artesian styled pizzas custom made to order.
In January 2018, the company went international by opening a location in the Polanco district of Mexico City and stated that later in 2018, they would expand into Spain.
However, in March 2018, the company unexpectedly closed several corporate-owned locations in the San Francisco Bay area and in October 2018, four of the 5 locations in Michigan were suddenly closed.
Pieology currently has 130 locations and has headquarters located in Rancho Santa Margarita, California.