UTILCO is the utility division of ILSCO Corporation, and is a manufacturer of aluminum and copper connectors for secondary di ... stribution. 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. read more