With a history dating back to 1917, Ontario Teachers' Pension Plan is responsible for managing the pension fund assets and providing pension administration services for 284,000 active and retired teachers in Ontario. The plan covers 173,000 teachers in elementary and secondary schools, 111,000 pensioners, and 72,000 inactive members. In 2008, the plan received $2.3 billion in contributions from teachers and the provincial government, while paying out $4.2 billion in benefits to plan members. The organization's investment strategy goes beyond financial returns, aiming to make a positive impact.