System initially hired Callan as general investment consultant for its defined contribution plans in December 2020 and last renewed its record keeping contract earlier that year.
The plan will discuss adding a 3% private debt target at its board meeting on Friday.
The plan last conducted a search over 10 years ago.
The plan opted to rehire its general investment consultant following a search launched earlier this year.
Plan currently works with general investment consultant Innovest Portfolio Solutions.
Plan reissued an RFP for investment consulting services originally launched in April due to the impending contract expiration of its incumbent.
The plan last conducted a similar search in 2015.
The four new firms help make up the plan’s new $5.2 billion fixed-income structure.
The plan hired all incumbents in its high-yield fixed-income and general investment consultant searches.
Consulting firm would oversee the state’s Secure Choice Savings investment program.