Australia's corporate regulator is warning non-bank lenders and superannuation funds of stronger regulatory action if it does not see improvements in compliance from the opaque private credit and equity sectors.

The outgoing chair of the Australian Securities and Investments Commission, Joe Longo, has released a roadmap for how the watchdog plans to boost investment in the nation's public and private markets while strengthening their integrity.

The regulator wanted to be a backer, not a blocker of investment, Mr Longo said before an address to the National Press Club on Wednesday.

"This roadmap lays out the choices and future of Australia's markets. We want our markets - private and public - to grow. That growth means stronger businesses, more jobs and a boost to our economy," he said.

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