Corporate Australia is just short of its 30 per cent target for women on ASX200 boards.

The Australian Institute of Company Directors (AICD) set a target in 2015 for ASX200 companies to achieve 30 per cent women on boards by the end of 2018.

Our top businesses came very close – with women now comprising 29.7 per cent of all ASX200 board positions.

That proportion has increased by over 10 percentage points since 2015.

The ASX100 and ASX50 made it over the line, with 31.5 per cent and 31.1 per cent board positions now being held by women.

“Corporate Australia has heard the message about the value of gender diversity in boardrooms,” AICD chief Angus Armour has told the ABC.

Last year, 45 per cent of appointments to ASX200 boards were women.

However, there are still some conspicuous standouts.

Four ASX200 firms - AMP, ARB Corporation, Emeco Holdings and TPG Telecom - featured no women on their boards as of December 31.

Mr Armour says the AICD's members are considering higher voluntary targets.

“I don't want to sign onto anyone else's targets without board endorsement, but there will definitely be a conversation about, ‘where do we go next?’,” he said.