No, while both Pit Boss and Traeger are brands of pellet grills, there is currently no link between the two companies. In fact, over the years there have been several legal disputes between them.

Traeger Incorporated is a publicly traded company on the New York Stock Exchange (NYSE), while Pit Boss is a brand of pellet grills/smokers which is owned by Dansons Corporate which owns several other pellet grill/smoker brands such as Louisiana Grills.