This study included interviews with 26 women at different stages of raising capital for their businesses, as well as interviews with male and female investors.
It learned that many women who had a male co-founder or business partner found that potential investors would direct their comments to the male, because they assumed that the women were not decision makers.
'She might decide to have a family'
Women also reported being asked by investors if they were single or planned on having children and received comments about their choice of clothing.
"In my opinion, when investors see a young woman, they think, we don't know how persistent this woman might be. She might decide to have a family and how strong is she to carry on being a CEO?," one investor named Paula said.
Janine Swail, who authored the research, said women entrepreneurs have to think about how they dress, what they say and how they conduct themselves in front of investors.
Although there is no evidence that sexism is preventing women from raising capital, these are factors that men do not have to contend with, Swail said.
"If this is the ecosystem that we have, how will that encourage other women entrepreneurs to put themselves out there and raise capital if they are aware they are going to face extreme challenges ahead?
"Will they make that next step for their growing businesses?"
Personal challenges
The challenges women faced when growing a business extended beyond just sexist interactions with investors.
One woman, named Deborah, said she thought most men would struggle to be in a relationship with her because they would have to assume most of the childcare commitments when she was on the road trying to raise capital.
Another woman discussed the awkward dynamic of having to pitch to her partner to get him to support her business, despite supporting him throughout his career.
The research found that women were often discouraged from calling out sexist behaviour because it could be seen as rocking the boat. Others felt they should just "get past it", the study said.
Swain said we have to acknowledge that sexism exists, but women should not have to accept it.
She said it was incumbent on the investment community to become aware of the biases they may have and take steps to address them.
- RNZ