The Beverage Tasting Institute (BTI) has awarded Kai Lychee vodka with a gold-medal-scoring 92 points at its 2007 Chicago event.
Kai Original vodka also came highly recommended by the BTI at its International Review of Spirits ceremony.
Marcus Bender, Kai Vodka founder, said: "Lately, there's been an incredible influx of new brands in the US market, translating into a necessary emphasis on quality.
"Both connoisseurs and consumers demand [quality], and it is on that very aspect that we are passionate to deliver."
Kai 's rice vodka is vastly different to those produced from wheat, potatoes or grapes, he added.