EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT STATE OR OTHER JURISDICTION OF INCORPORATION OR NAME ORGANIZATION ---------------------------------- ------------------------------ 1. SFI New York 2. United Envelope Co., Inc. New York 3. Data Business Forms Limited Canada 4. Hano Document Printers, Inc. Virginia 5. Huxley Envelope Corp. New York 6. Pocono Envelope Corp. Pennsylvania 7. Rex Envelope Co., Inc. New York 8. Astrid Offset Corp. New York 9. SFI of Delaware, LLC Delaware 10. United Envelope, LLC Delaware 11. 3303471 Canada Limited Canada