Stand Up Paddle Austin - How Austin Became SUP Capital of the World Stand Up Paddle Austin. Austin, Texas has become the Stand Up Paddle Capital of the World! SUP ATX, an Austin, Texas based company is the #1 stand up paddle board maker in the world. The SUP ATX mission is to spread the sport of stand up paddle surfing from oceans to lakes and rivers across the United States and around the World. Stand-up-paddle-austin.com~Site InfoWhoisTrace RouteRBL Check