BiffCo Enterprises (alternatively called "Biffco Enterprises"), also known as BiffCo (alternatively called "Biffco"), is a toxic waste company founded by Biff Tannen after making millions betting on horse races with help of the Grays Sports Almanac in the "Biffhorrific" timeline (specifically alternate 1985), and an antagonistic faction in Back to the Future Part II. BiffCo Realty, real estate company that is a part of BiffCo Enterprises, owned Lyon Estates (: a line under the statues of lions said that Lyon Estates was "a proud member of the BiffCo family".