"The directors took this step because the company faced a recovery action from a creditor and was unable to enter into a settlement arrangement," Gair said.
One of the major shareholders in the company, Anne Deitz, said she could not comment on specifics, but hoped the company pulled through.
"He's [Daniel Barker], I think probably one of the best winemakers there is, he is very, very good, and he works so hard.
"We've always thought that, he's won lots of awards, and made a lot of good wine.
"I think together, they'll will come through this well."
Deitz said she and her husband Michael invested in Moana Park Winery because of their belief in the Barkers, as well as their desire to invest in land in Hawke's Bay.
"We admire them a lot."
She was unable to comment on the future of the company, or what voluntary administration meant for their investment, but said they had been made aware prior to it happening.
The Barkers were approached for comment.
Voluntary administration is when a person independent from the company assesses options when the company becomes insolvent.
As is the case with Moana Park, directors of a company can choose to go into administration, but can also be forced to.
Recently, construction company Arrow International made headlines for entering voluntary administration.
