Invivo Wine co-founder Tim Lightbourne says controversy in the British media about whether shareholder Graham Norton breached BBC guidelines is nothing to do with the company.
Although Norton has been open about his investment in the Kiwi winery, the Mail on Sunday reported this week that he may have breached strict BBC advertising rules by drinking the wine and offering it to guests on his show.
"We have never seen any brands promoted on his show," Lightbourne told the Herald.
A promotional video for Invivo Wines released this year featuring Norton crushing grapes on set may also have been a breach, the Mail on Sunday reported.
A BBC spokesman told the Mail on Sunday: "No brands are promoted on The Graham Norton Show."