Tollgrade is a leading provider of network assurance solutions for the telecommunications and utilities industries. Tollgrade’s core telecom products help telecommunications service providers to minimize repair costs by remotely diagnosing problems in the copper line networks for DSL and plain old telephone service (POTS) lines. Customers include large telecommunications service providers around the world. Tollgrade has also created a testing solution for smart grid applications with electric utilities. This product leverages Tollgrade’s expertise in remotely identifying network impairments through analyzing waveforms in the electric current flowing through the networks. The company is headquartered outside of Pittsburgh, PA.

www.tollgrade.com