North Yorkshire County Council Pension Fund, Northallerton, England, hired Hewitt Associates as investment consultant, said Tom Morrison, principal accountant for the £1.2 billion ($1.8 billion) fund.
Hewitt replaces Mercer, which held the position for three years.
North Yorkshire began the search in November because Mercer's contract was set to expire March 31. Mercer rebid; fund officials had no concerns about their performance or approach, Mr. Morrison said.
Mr. Morrison said there are no immediate plans for an asset allocation study, but Hewittt might have new ideas regarding the fund's investments, which fund officials will be open to hearing.