The Santa Ana, California, company said that it has sought, but has been refused, additional financing by its lenders.
It's unclear what would happen to its students. It has more than 100 campuses in the U.S. and Canada as well as online classes. Everest and Heald offer programs in the health care, business and computer technology fields. WyoTech trains students on motorcycle repair, automotive technology and air conditioner installation.
A spokesman at Corinthian declined to comment Thursday.