EXHIBIT 21 DDL ELECTRONICS, INC. SUBSIDIARIES OF THE REGISTRANT All subsidiaries are 100% owned by DDL Electronics, Inc., except as otherwise indicated, and are included in the consolidated financial statements. Subsidiaries Incorporation Aeroscientific Corp. (California) (99.9% owned by DDL Electronics, Inc.) California Aeroscientific Corp. (Oregon) (100% owned by Aeroscientific Corp.(California)) Oregon A.J. Electronics, Inc. California DDL Europe Limited Northern Ireland DDL Electronics Limited (100% owned by DDL Europe Limited) Northern Ireland Irlandus Circuits Limited (100% owned by DDL Europe Limited) Northern Ireland