The logo of BiffCo.
BiffCo Enterprises, or simply Biffco, was the enterprise founded by Biff Tannen after having made millions successfully betting on horse races with help of the Grays Sports Almanac in the Biffhorrific timeline. He invested in toxic waste reclamation and other heavy polluting industries with the company. Biff's position in the company gave him great influence over political leaders and law enforcement.
BiffCo Realty, a part of BiffCo Enterprises, owned Lyon Estates: a line at the foot of each lion statue at the entrance (albeit partly obscured by graffiti) said that Lyon Estates was "A PROUD MEMBER OF THE BiffCo FAMILY".