The authority is seeking the services on behalf of its defined benefit, 457(b) and 401(a) plans.
The retirement system retained its equity manager and let go of its incumbent fixed-income manager.
The retirement fund disclosed commitments totaling $4.5 billion in September.
The pension plan was notified of two commitments totaling $257.5 million at its Nov. 13 board of investments meeting.
The pension plan has not had consultant coverage for private equity, private debt and private infrastructure.
The commission is searching for a discretionary manager for its non-pension assets.
The asset classes were recommended by the OPEB trust’s new general investment consultant.
The retirement system will also launch a search for private credit managers next year.
The plan added a follow-on commitment to a healthcare-focused private equity firm this week.
The retirement trust will interview two core real estate managers at its February board meeting.