ILSCO’s Family of Companies


Surge Suppression, LLC

Surge Suppression, LLC (SSI) is a pre-eminent supplier of Surge Protection Devices (SPDs). With roots dating back to 1982, SSI has forged a position in the top tier of SPD manufacturers, establishing new standards for quality, service, performance and design creativity. SSI manufactures multiple lines of SPDs for both AC and DC power systems, as well as data and telecommunication systems from 5 to 7,200 volts.

Overvoltage protection is a logical next step in ILSCO’s strategy to broaden our electrical solution offering to the marketplace. SSI brings a strong history of innovation and safety along with the broadest range of SPD solutions in the market today. SSI’s products represent a perfect complement to ILSCO’s ever-expanding line of grounding and bonding connectors.

ILSCO Extrusions Inc.

extrusionsILSCO Extrusions Inc. (IEI) provides aluminum extrusions with precision dimensional tolerances, consistent material properties that improve machinability, and a technically savvy service department that solves problems and provides value added-council to reduce your total purchase costs.

With over 60 years in the industry, IEI adds value to every step of your supply chain — from custom aluminum extrusion design to just-in-time replenishment. We deliver on the entire process, from 6″ to 10″ extrusion capability, precision cutting, fabrication, welding and finishing through to special assembly services, part analysis and supply chain management.

ILSCO of Canada

canadaILSCO of Canada is a vertically integrated company whose primary focus is the design, manufacture and sale of electrical connectors and related products. Comprised of two ISO 9000 Certified operations, both located in Mississauga, Ontario, ILSCO of Canada supplies product for the electrical wholesale, utility and OEM markets and exports product to the U.S., Mexico, and other nations. ILSCO is the only connector supplier in Canada with active design and testing capabilities. ILSCO of Canada is a wholly owned subsidiary of ILSCO Corporation.


utilcoUTILCO is the utility division of ILSCO Corporation, and is a manufacturer of aluminum and copper connectors for secondary distribution. UTILCO features a complete line of mechanical connectors for underground and overhead applications. In-house engineering and testing capabilities, as well as state-of-the-art 3D printing capabilities, afford us the ability to meet and exceed our customers’ expectations.

UTILCO services the utility industry through representatives and distribution. We are participating members in leading industry organizations including IEEE, ANSI, ECNE, UPMG and USMA.


glenmoorGlenmoor Co. is a vertically integrated ILSCO division that manufactures precision set screws and screw machine components utilizing multiple- and single-spindle equipment. Parts are manufactured from aluminum, steel including stainless, copper and brass rod. Our automatic bar threading equipment has a diameter range of 1/8″ to 3/4″.

FTZ Industries

ftzFTZ Industries is a leading manufacturer of electrical components for transportation and industrial applications. For over 30 years we have provided innovative products and unmatched service to our customers.

FTZ is based in Simpsonville, SC. FTZ Industries’ state-of-the-art manufacturing facility and distribution center provide distributors the products they need, when they need them.

FTZ is a division of ILSCO Corporation.