Two Long Island, N.Y. insulation service companies and an owner of the companies have pleaded guilty to conspiring to rig bids on the supply of maintenance and insulation services to New York Presbyterian Hospital (NYPH) and Mount Sinai Medical Center (Mount Sinai), the Department of Justice announced.

Michael Theodorobeakos of Upper Saddle River, N.J., and two maintenance and insulation companies he co-owned Monosis Inc. (Monosis) and STU Associates Inc. (STU) pleaded guilty in U.S. District Court in Manhattan for rigging bids to NYPH and Mount Sinai. Between approximately 2000 and September 2005, NYPH and Mount Sinai purchased substantial quantities of maintenance and insulation services from Theodorobeakos, Monosis, STU and co-conspirators. Theodorobeakos and the co-conspirators attempted to create the appearance that NYPH and Mount Sinai were awarding contracts based on competitive bids, when, in fact, they frequently were not.