EX-21.1 7 h10818exv21w1.txt SUBSIDIARIES OF THE REGISTRANT . . . Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT
SUBSIDIARY STATE OF INCORPORATION ------------------------------------------------- ---------------------- 1st Group Telecommunications, Inc. Delaware Ace/Putzel Electric, Inc. Georgia Aladdin-Ward Electric & Air, Inc. Florida Amber Electric, Inc. Florida Anderson & Wood Construction Co., Inc. Delaware ARC Electric, Incorporated Delaware B. Rice Electric LP Texas Bachofner Electric, Inc. Delaware Bear Acquisition Corporation Delaware Bexar Electric Company, Ltd. Texas Bexar Electric II LLC Arizona Brink Electric Construction Co. South Dakota Britt Rice Electric, Inc. Delaware Britt Rice Holdings II LLC Delaware Britt Rice Holdings LLC Arizona Britt Rice Management LLC Arizona Bryant Electric Company, Inc. North Carolina BW Consolidated, Inc. Nevada BW/BEC II LLC Arizona BW/BEC, Inc. Delaware BW/BEC, L.L.C. Nevada Canova Electrical Contracting, Inc. Delaware Carroll Holdings II LLC Delaware Carroll Holdings LLC Arizona Carroll Management LLC Arizona Carroll Systems LP Texas Carroll Systems, Inc. Delaware Charles P. Bagby Co., Inc. Alabama Collier Electric Company, Inc. Florida Commercial Electrical Contractors, Inc. Delaware Cross State Electric, Inc. California Cypress Electrical Contractors, Inc. Delaware Daniel Electrical Contractors, Inc. Florida Daniel Electrical of Treasure Coast, Inc. Florida Daniel Integrated Technologies, Inc. Florida Davis Electrical Constructors, Inc. South Carolina Delco Electric, Inc. Delaware DKD Electric Company, Inc. New Mexico
ElectroTech, Inc. Nevada EMC Acquisition Corporation Delaware Ernest P. Breaux Electrical, Inc. Delaware Federal Communications Group, Inc. Delaware Florida Industrial Electric, Inc. Florida General Partner, Inc. Alabama Goss Electric Company, Inc. Delaware H.R. Allen, Inc. South Carolina Hatfield Reynolds Electric Company Arizona Haymaker Electric, Inc. Alabama Holland Electrical Systems, Inc. Delaware Houston Stafford Holdings LLC Arizona Houston-Stafford Electric Holdings III, Inc. Delaware Houston-Stafford Electrical Contractors, LP Texas Houston-Stafford Holdings II LLC Delaware Houston-Stafford Management LLC Arizona Howard Brothers Electric Co., Inc. Delaware ICS Holdings LLC Arizona ICS Integrated Communication Services LP Texas IES Communications, Inc. Delaware IES Contractors Holdings LLC Arizona IES Contractors Management LLC Arizona IES Contractors, Inc. Delaware IES ENC Management, Inc. Delaware IES ENC, Inc. Delaware IES Federal Contract Group, LP Texas IES Holdings II LLC Delaware IES Holdings LLC Arizona IES Management LP Texas IES Operations Group, Inc. Delaware IES Properties Holdings II LLC Arizona IES Properties Holdings, Inc. Delaware IES Properties Management, Inc. Delaware IES Properties, Inc. Delaware IES Properties, LP Texas IES Reinsurance, Ltd. Bermuda IES Residential Group, Inc. Delaware IES Specialty Lighting, Inc. Delaware IES Ventures Inc. Delaware Integrated Electrical Finance, Inc. Delaware Intelligent Building Solutions, Inc. Delaware J.W. Gray Electric Company, Inc. Delaware J.W. Gray Electrical Contractors, LP Texas J.W. Gray Holdings II LLC Delaware J.W. Gray Holdings, LLC Arizona
J.W. Gray Management, LLC Arizona Kayton Electric, Inc. Nebraska Key Electrical Supply, Inc. Texas Linemen, Inc. dba California Communications Delaware Mark Henderson, Incorporated Delaware Menninga Electric, Inc. Delaware Mid-States Electric Company, Inc. Delaware Mills Electric LP Texas Mills Electric Holdings II LLC Delaware Mills Electrical Contractors, Inc. Delaware Mills Electrical Holdings, LLC Arizona Mills Management LLC Arizona Mitchell Electric Company, Inc. Arizona M-S Systems, Inc. Tennessee Murray Electrical Contractors, Inc. Delaware NBH Holding Co., Inc. Delaware Neal Electric LP Texas Neal Electric Management LLC Arizona New Technology Electrical Contractors, Inc. Delaware Newcomb Electric Company, Inc. Delaware Pan American Electric Company, Inc. New Mexico Pan American Electric, Inc. Tennessee Paulin Electric Company, Inc. Delaware Pollock Electric, Inc. Delaware Pollock Summit Electric, LP Texas Pollock Summit Holdings II LLC Delaware Pollock Summit Holdings, Inc. Arizona PrimeNet, Inc. Delaware Primo Electric Company Delaware Raines Electric Company Delaware Raines Electric LP Texas Raines Holdings II LLC Delaware Raines Holdings LLC Arizona Raines Management LLC Arizona Riviera Electric LLC Delaware RKT Electric, Inc. Delaware Rockwell Electric, Inc. Delaware Rodgers Electric Company, Inc. Washington Ron's Electric, Inc., dba IES-North Plains Delaware SEI Electrical Contractor, Inc. Florida Spectrol, Inc. Delaware Summit Electric of Texas, Inc. Delaware T&H Electrical Corporation Delaware Tech Electric Co., Inc. Delaware Tesla Power (Nevada) II LLC Delaware
Tesla Power (Nevada), Inc. Nevada Tesla Power & Automation, LP Texas Tesla Power GP, Inc. Delaware Tesla Power Properties, LP Texas Thomas Popp & Company Ohio Valentine Electrical, Inc. Delaware Wright Electrical Contracting, Inc. Delaware