MEXICO, Brazil, Poland and Nigeria are set to become the new wine frontier, according to a Rabobank report.
Growing middle classes and interest in quality wine were behind the demand.
The report found emerging markets were attracting interest from nearly all major wine companies.
"Each offer good prospects of medium to longer term growth for ambitious wine exporters willing to make early investments in building their brands in these markets," the report said.
The report said hidden gem markets were not necessarily the largest or most attractive wine markets in the world.
Rabobank food and agribusiness research analyst Stephen Rannekleiv said wine companies were now facing the question of what to do with these four markets.
"Although they present opportunities, each has a very different market with much uncertainty for traditional branded wine companies," he said.