PRECEPT BUSINESS SERVICES, INC. EXHIBIT 21 TO FORM 10-K LIST OF SUBSIDIARIES FOR THE YEAR ENDED JUNE 30, 1999 Precept Business Products, Inc. Precept Holdings, Inc. Precept Transportation Services, LLC Wingtip Couriers, Inc. Precept Transportation Services of Texas, Inc. Transportation Systems Corporation Shortway River Rouge, Inc. Jetport, Inc. Infographix, Inc. Creative Acquisition Corporation Precept Acquisition Corporation Garden State Acquisition Corporation Precept Transportation of New England, Inc. Computer Forms & Products, Inc.