PowerBridge, LLC of Fairfield, Connecticut, through its subsidiary Neptune Power Ventures, LLC, is the sole managing member of Neptune Regional Transmission System, LLC (Neptune RTS), which is responsible for owning, constructing, and operating the Neptune transmission line. Owners of Neptune RTS include the principal equity investors and the original development company for the project. PowerBridge is also responsible for development, construction and operation of the Hudson Transmission Project and is currently engaged in the development of Cascade Renewable Transmission as well as several other energy and infrastructure projects.