EX-21.1 3 q42019ex211.htm EXHIBIT 21.1
Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
As of September 30, 2019

Subsidiary |  | Jurisdiction of Incorporation
Azimuth Communications, Inc. |  | Oregon
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 Residential, Inc. |  | Delaware
IES Shared Services, Inc. |  | Delaware
IES Subsidiary Holdings, Inc. |  | Delaware
Integrated Electrical Finance, Inc. |  | Delaware
Key Electrical Supply, Inc. |  | Texas
Magnetech Industrial Services, Inc. |  | Indiana
NEXT Electric, LLC |  | Wisconsin
Southern Industrial Sales and Services, Inc. |  | Georgia
STR Mechanical, LLC |  | North Carolina
Technibus, Inc. |  | Delaware
Technical Services II, LLC |  | Virginia
Thomas Popp & Company |  | Ohio