GT’s kombucha is based in California, and the founder credits kombucha with helping his mother when she was diagnosed with an aggressive form of breast cancer. Maybe that’s because my gateway … Kombucha is the fastest-growing beverage category in Australia. Check price at Amazon. GT Dave owes a lot to kombucha, and kombucha owes a lot to GT Dave. GT’s Kombucha products are extremely low in sugar, with only two grams per bottle of the gingerade flavor. GT’s Kombucha is one of the original and most popular kombucha brands, and it stakes its products on their purity and lack of additives or sweeteners. The purchase of the company marks Coca-Cola's first ever acquisition of a kombucha brand. GT’s kombucha also is sold at Walmart, Target, Walgreens, Amazon, and even places like 7-Eleven in my area. GT’s Kombucha. Terms were not disclosed. His company, GT’s Kombucha, created the kombucha category at retail, and it’s a category he continues to dominate after more than 20 years in business. Unlike some people who have to develop a taste for the fermented tea’s sour-sweet flavor, I took to it like a 7-year-old to Sour Patch Kids. The first kombucha I ever tried was from GT’s, and I was instantly hooked. This is the first time Coca-Cola has acquired full ownership of a brand in the category. Coca-Cola has acquired Australian kombucha-maker Organic & Raw Trading Co, which produces MOJO kombucha. 1. Industry sources place kombucha sales at north of $600 million, with GT’s commanding at least 50% of that total.