New Jersey Division of Investment (NJDI) is a public pension fund based in Trenton, New Jersey. Established in 1950, the division is under the supervision of the State Investment Council, one of the largest pension fund managers in the United States. The pension fund supports the retirement plans of active and retired employees in seven public pension systems, namely the Consolidated Police & Firemen's Pension Fund, the Judicial Retirement System, the Police & Firemen's Retirement System, the Prison Officers Pension Fund, the Public Employees' Retirement System, the State Police Retirement System and the Teachers' Pension & Annuity Fund. NJDI is governed by the sixteen members of the state investment council.