PAX Labs has raised $617 million across major funding events, beginning with a $46.7M round in 2015 led by Tao Capital and Sand Hill Angels to expand internationally and broaden its cannabis vapor product line. The company later secured its largest investment $420M in April 2019, backed by Tiger Global, Tao Capital Partners, and Prescott General Partners, valuing the company at $1.7B. These rounds supported new product innovation and expansion into markets such as Canada and emerging CBD verticals. PAX Labs remains one of the most heavily funded consumer cannabis-tech companies.