EXHIBIT 21 SUBSIDIARIES OF PIONEER-STANDARD ELECTRONICS, INC. STATE OR JURISDICTION OF SUBSIDIARIES OF THE COMPANY ORGANIZATION OR INCORPORATION - --------------------------- ----------------------------- Pioneer-Standard Canada Inc. Ontario Pioneer-Standard FSC, Inc. Virgin Islands of the United States Pioneer-Standard Illinois, Inc. Delaware Pioneer-Standard Minnesota, Inc. Delaware Pioneer-Standard Electronics, Ltd. Delaware Pioneer-Standard Financial Trust Delaware The Dickens Services Group, a Pioneer-Standard Company, LLC Delaware Supplystream, Inc. New York Pioneer-Standard Electronics GmbH Germany Aprisa, Inc. Delaware Aprisa Holdings Inc. Delaware Pioneer-Standard Funding Corporation Delaware