Exhibit 21 LIST OF SUBSIDIARIES OF REGISTRANT Altris Group, Ltd. Altris Software Enterprises, Ltd Trimco International, Ltd Altris International, Ltd Imagen Enterprises Ltd Altris Software (Florida), Inc. Micro Synergy Associates, Inc., a Florida corporation Trimco Document Management, Inc. Optigraphics Corporation, a California corporation Optigraphics International Corporation, a California corporation (a subsidiary of Optigraphics Corporation) Alphamation Incorporated, a California corporation