"Unfortunately there is still a lack of awareness or acceptance by some of the direct link that gender diversity has to improvements in the performance of an organisation."
Noble said there were a number of reasons women were not better represented on boards in New Zealand, one being the method of recruitment and the selection process, which she said needed improvement.
Tara Lorigan, co-founder and chief executive of Co.OfWomen said she could see things changing - but at a slow pace.
"I'm not surprised by the results but I think change is definitely afoot - it's just going to take time," Lorigan said.
"There's a range of things including the tenure on these boards and that old boys network - many of those people are still in these positions and hiring in their own image and that's not going to change in the short term," she said.
"Things are being done but I don't think we're going to see any swift change."
Despite this, Lorigan said more women were opting to start their own companies rather than going into the boardroom, which she said was a positive shift.