USA Security Systems Inc.

Umbdenstock Electric Inc.

Turo Electrical Construction Inc.

Total Electric, Inc

Topp Notch Electric LLC

TKO Installations, Inc.

Sound of Music Ltd.

Smith Electrical Contracting

Shield Electric, Inc.

Service Plus, Inc.

Scheffler Electric

Ron Jones Electric

Ridgeview Electric Company

Rehm Electric Shop Inc.

Premium Concrete Cutting Inc.

Power Link Electric

Platt Electric, Inc.

Platinum Communications LLC

Pier Electric Inc.

Peters Electric & Technology Inc.

Northwest Technical

National Technologies/NAT Tech, Inc.

Naperville Electrical Contractors, Inc.

Mid-States Electric/Althoff Ind.

Mendel Electrical Division

Media Tech LLC

Meade Electric Co. Inc.

M&S Security Systems, Inc.

M & R Electronic System

Lohbauer Electric Inc.

Lightning Communications

Legend Electric

Lauderdale Electric Inc.

L.L.D. Electric Co.

L.E. Tech Inc.

Krause Electrical Contractors, Inc.

KII Electrical Contractors

Kelso-Burnett Company

Kellenberger Electric Inc.

Kadlec Electric

Kace Communications, LLC

Inteck Systems, Inc.

Innovative Electrical Services

Huen Electric, Inc.

Homestead Electrical Contracting, LLC

Holmgren Electric, Inc.

HLP Systems, Inc.

High Voltage Electric dba 5th Avenue Electric

Frank Marshall Electric Inc.

Fitzgerald’s Electrical Contracting Inc.

Factor Electric, Inc.

Electrical Contractors Inc.

Deerfield Electric Co, Inc.

CTS of Illinois, Inc.

Correct Electric, Inc.

Complete Electrical Service

Carey Electric Contracting Inc.

C&C Systems, LLC

Butler Coring, Inc.

Bip 66, LLC

Bernardoni Electric, Inc.

Benson Electrical Contracting, Inc.

Beery Heating & Cooling, Inc.

Bassett Electrical Contracting, LLC

AWF, Inc. dba Aurora Wiring & Fixture Co. Inc.

Aurora Sign Co.

Associated Electrical Contractors

American Energy Analysis, Inc.

Aldridge Electric Inc.

Adams North Electric