Family offices with venture portfolios have an average of 27 investments, according to a new report. And these investments—17 of them, on average, direct and 10 of them funds—are helping family offices reap the rewards of a worldwide rise in venture capital investing.

A January report by Campden Wealth in London and SVB Capital in Palo Alto, Calif., found the average internal rate of return, or IRR, for venture capital portfolios at family offices was 24% in the 12 months before they were surveyed, up from only 14% a year before. READ MORE