EX-21.1 2 d506165dex211.htm EXHIBIT 21.1 Exhibit 21.1

Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

As of September 30, 2017

 

Subsidiary

  

Jurisdiction of Incorporation

Calumet Armature and Electric, L.L.C.

  

Illinois

Freeman Enclosure Systems, LLC

  

Ohio

HK Engine Components, LLC

  

Indiana

ICS Holdings LLC

  

Arizona

IES Commercial, Inc.

  

Delaware

IES Communications, LLC

  

Delaware

IES Consolidation, LLC

  

Delaware

IES Infrastructure Solutions, LLC

  

Delaware

IES Management, LP

  

Texas

IES Management ROO, LP

  

Texas

IES Operations Group, Inc.

  

Delaware

IES Properties, Inc.

  

Delaware

IES Purchasing & Materials, Inc.

  

Delaware

IES Renewable Energy, LLC

  

Delaware

IES Residential, Inc.

  

Delaware

IES Shared Services, Inc.

  

Delaware

IES Subsidiary Holdings, Inc.

  

Delaware

IES Tangible Properties, Inc.

  

Delaware

Integrated Electrical Finance, Inc.

  

Delaware

Key Electrical Supply, Inc.

  

Texas

Magnetech Industrial Services, Inc.

  

Indiana

NEXT Electric, LLC

  

Wisconsin

Shanahan Mechanical and Electrical, Inc.

  

Nebraska

Southern Industrial Sales and Services, Inc.

  

Georgia

STR Mechanical, LLC

  

North Carolina

Technibus, Inc.

  

Delaware

Technical Services II, LLC

  

Virginia

Thomas Popp & Company

  

Ohio