Trade union officials will make up a quarter of attendees at the event alongside business leaders and CEOs, though no banking bosses have been invited.
Executives holding the purse strings in the $3.3 trillion superannuation sector say they would fund housing affordability projects, but only if they stack up on pure investment grounds.
HESTA has joined calls for superannuation to be paid on Commonwealth Paid Parental Leave entitlements, saying modelling shows it could see a mother of two retire with $14,000 more in her account.