Exhibit (21) SUBSIDIARIES OF THE REGISTRANT ------------------------------ The Company is the owner of all of the issued and outstanding stock of the following corporations, except as noted below. State or Country of Name of Subsidiary Incorporation ------------------ ------------------- Apogee Enterprises International, Inc. Barbados Prism Assurance, Ltd. Vermont W.S.A., Inc. Minnesota Harmon, Inc. Minnesota Norment Industries, Inc. Delaware Harmon Contract, Inc. (1) Minnesota Norshield Corporation Alabama Harmon Contract Asia, Ltd. (2) Minnesota Harmon Contract Asia Sdn Bhd (3) Malaysia Harmon Contract U.K., Limited (4) United Kingdom Harmon Europe S.A. (5) France Harmon CFEM Facades (UK) Ltd. (6) United Kingdom Harmon LTS (7) France Harmon/CFEM Facades S.A. (8) France Harmon Facalu S.A. (8) France Harmon Sitraco S.A. (8) France Harmon Voisin S. A. (8) France Milco Contracting, Inc. (9) Wisconsin Viracon, Inc. Minnesota Viratec Thin Films, Inc. (10) Minnesota Viratec International, Inc. (11) Barbados Viracon/Curvlite, Inc. Minnesota Tru Vue, Inc. Illinois Harmon Glass Company Minnesota First Call, Inc. Florida American Management Group (12) Maine Apogee Sales Corporation (12) South Dakota Harmon Glass of Canada Ltd. (12) (13) Canada The Glass Depot, Inc. Minnesota The Glass Depot of New York, Inc. (14) Minnesota Apogee Wausau Group, Inc. Wisconsin Dover Glass Co. (15) Maine Adams Glass Co. (13) (15) Maine Glass Distributors, Inc. (13) (15) Maine Berlin Glass Co. (13) (15) Maine (1) Owned by W.S.A., Inc. (2) Owned by Harmon Contract, Inc. (3) Owned by Harmon Contract Asia, Ltd. (4) 99.99% owned by Harmon Contract, Inc. and .01% by Apogee Enterprises, Inc. (5) 70% owned by various Apogee entities (6) 99.99% owned by Harmon Europe S.A. and .01% by Apogee Enterprises, Inc. (7) 99.5% owned by Harmon Europe S.A. (8) Owned by Harmon Europe S.A. (9) Owned by Apogee Wausau Group, Inc. (10) Owned by Viracon, Inc. (11) Owned by Viratec Thin Films, Inc. (12) Owned by Harmon Glass Company (13) Inactive (14) Owned by The Glass Depot, Inc. (15) Owned by American Management Group