Attached files

file filename
EX-32.2 - EX-32.2 - IES Holdings, Inc.q42020ex322.htm
EX-32.1 - EX-32.2 - IES Holdings, Inc.q42020ex321.htm
EX-31.2 - EX-31.2 - IES Holdings, Inc.q42020ex312.htm
EX-31.1 - EX-31.1 - IES Holdings, Inc.q42020ex311.htm
EX-23.1 - EX-23.1 - IES Holdings, Inc.q42020ex231.htm
EX-4.5 - EX-4.5 - IES Holdings, Inc.q42020ex45.htm
10-K - 10-K - IES Holdings, Inc.iesc-20200930.htm

Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
As of September 30, 2020
SubsidiaryJurisdiction of Incorporation
Aerial Lighting & Electric, Inc.Connecticut
Azimuth Communications, Inc.Oregon
Calumet Armature and Electric, L.L.C.Illinois
Freeman Enclosure Systems, LLCOhio
HK Engine Components, LLCIndiana
Hotchkiss Alarms, LLCConnecticut
ICS Holdings LLCArizona
IES Commercial, Inc.Delaware
IES Communications, LLCDelaware
IES Consolidation, LLCDelaware
IES Infrastructure Solutions, LLCDelaware
IES Management, LPTexas
IES Management ROO, LPTexas
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, LLCWisconsin
Plant Power and Control Systems, L.L.C.Alabama
Southern Industrial Sales and Services, Inc.Georgia
STR Mechanical, LLCNorth Carolina
Technibus, Inc.Delaware
Technical Services II, LLCVirginia
Thomas Popp & CompanyOhio