The Public Service Enterprise Group (PSEG) is a publicly traded diversified energy company headquartered in Newark, New Jersey and was established in 1985.
The company's largest subsidiary is Public Service Electric and Gas Company (PSE&G).
The Public Service Electric and Gas Company is a regulated gas and electric utility company serving the state of New Jersey [3] and it is New Jersey's oldest and largest investor owned utility company; the Public Service Electric and Gas Company was established in 1928 and was originally a subsidiary of the New Jersey based Public Service Corporation.