Jay-Z Invests $19M in Marijuana Software Company Jay-Z has made another boss move. Forbes has reported that Hov has invested $19 million in cannabis company Flowhub that helps dispensaries flow easier. Flowhub helps companies process sales, keeps up with inventory, and makes sure dispensaries stay legal. When Jay-Z says, he’s not a businessman he’s a business man, it’s true, the founder of the company said about Jay-Z. Have you had thoughts of getting into the cannabis business?