IFM Investors chairman Greg Combet is under pressure from member funds to be more transparent about what IFM's executives are paid as its profits soar, with one British tabloid newspaper attacking chief executive Brett Himbury's "jet-set" lifestyle.

IFM is owned by 27 industry superannuation funds and its biggest members, including Sunsuper and Australian Super, disclose how much they pay their executives and directors in their annual reports or in specific remuneration documents.