ABB - A world wide manufacturer of tranformers, breakers, switchgear, arresters, capacitors, protective relays, turn-key substations, gas insulated switchgear, MV drives, power quality equipment and service.

AZZ Atkinson/EPSI - Manufactures custom-built electrical power distribution enclosures which provide environmentally controlled protection for various types of electrical switchgear, analytic instruments and control apparatus. 

AZZ Central Electric - Manufacturers 5kV-38kV metalclad switchgear using its Power Aisle walk-in design.  Central Electric also manufactures stand alone relay panels or in Power Distribution Centers. 

AZZ Calvert - Manufacturers Iso Phase bus duct , Non-Seg bus duct and also offers bus duct services including modification and installation of new or existing bus duct.

AZZ CGIT-Westboro - Manufacturers gas insulated transmission bus systems, type CGIT (also known as GIL), which provide a compact, reliable and economical alternative to conventional cable systems and overhead lines for power transmission.

Albarrie - Manufacturers containment lining products for industries such as; Municipal Solid Waste Landfills; Hazardous Waste Sites; Nuclear Sites; Soil Remediation; Artificial Ponds and Lakes. Products were developed to contain all liquids and prevent any of the liquids from entering the sub-soil or prevent precipitation entering the contaminated sub-soils.  The SorbWeb™ Plus system designed for containment of hydrocarbons, including transformer oil spill containment.

CTC Cable Corporation - Manufacture composite core for use in its patented ACCC™ conductors, which are “high efficiency” conductors for use in electrical transmission grid systems. ACCC™ conductors are an innovative and economical solution for replacing (reconductoring) power lines, constructing new lines and crossing large spans. ACCC™ composite core is delivered to qualified conductor manufacturers worldwide for local ACCC™ conductor production and resale into local markets.

Filnor Inc. - Disconnect Switches, Neutral Grounding Resistors, Dynamic Breaking Resistors, Load Banks, Crane Controls.

Hamby Young - Designs, estimates, coordinate and supplies equipment and material packages for complete substations, transmission lines and fiber optic projects. Offerings include steel structures, structures, insulators, disconnect switches, HV cable, connectors, load break elbows and pole line hardware.

Phoenix Electric Corporation - Manufactures air-core reactors - current limiting, neutral grounding, transient limiting plus specialty switchgear. 

Southwest Electric - Manufactures custom medium voltage switchgear, metal enclosed switches and primary metering cubicles.

Tattletale - Portable alarm systems for construction and substations.

Chloride Industrial Systems - Industrial UPS up to 150kVA DC/AC Inverters Industrial Battery Chargers Rectifiers Station Batteries