Cirkul

Cirkul is a Tampa-based personalized hydration company that makes a reusable water bottle paired with snap-in flavor cartridges and a 'Flavor Dial' that lets drinkers control how much taste, vitamins, electrolytes or caffeine flow into plain water - with zero sugar and zero calories. Founded by former Dartmouth football teammates Garrett Waggoner and Andy Gay, the brand went viral on TikTok, became one of Walmart's fastest-selling home products, and reached a $1 billion valuation.