Aon Pension Plan is a single-employer noncontributory defined benefit corporate pension based in Chicago, Illinois. Established in 1973, the plan provides retirement benefits to the eligible U.S. employees of Aon, a British multinational corporation headquartered in London, United Kingdom. The plan was authorized by the board of directors of Aon. The assets of the pension fund are managed by the retirement plan governance and investment committee. Northern Trust Company is the Trustee of the plan.