Wisconsin State Investment Board, Madison, is searching for a private equity consultant. The $70.6 billion board has $1.8 billion in private equity and another $1 billion in uncalled commitments. The RFP is available at www.swib.state.wi.us; proposals are due July 12. Incumbent consultant Pathway Capital's contract expires Oct. 1; it can rebid, said Vicki Hearing, public information official. The board expects to make a decision Sept. 8.