Chicago Public School Teachers' Pension & Retirement Fund hired Marco Consulting Group to provide proxy-voting advisory services, according to a statement from the pension fund.
It is the first time the $9.8 billion pension fund has used a specialty firm for such services.
The pension fund's public markets investment managers had been responsible for voting the proxies.
The pension fund issued an RFP in July seeking proxy research, analysis and recommendation, as well as assistance in developing its proxy-voting policy.
Callan Associates, the pension fund's investment consultant, assisted in the search.