Exhibit 21.1 List of Subsidiaries Exhibit 21.1 Subsidiaries Subsidiary Jurisdiction of Incorporation ---------- ----------------------------- Parsons Electric Co. Minnesota Eagle Electric Holdings, Inc. Minnesota * The Allison Company Georgia * Allison-Smith Company(1) Georgia * Henderson Electric Co. Inc. Kentucky * Eagle Electrical Systems, Inc.(2) Ohio * Potter Electric Co., Inc. Nevada * To be acquired concurrently with the closing of the Offering made hereby. (1) Allison-Smith Company is the operating company and wholly-owned subsidiary of The Allison Company (2) Eagle Electrical Systems, Inc. is the wholly-owned subsidiary of Henderson Electric Co., Inc.