We believe it’s best not to name names. Nobody really wants to hear that you’re interested or applying to their competitors and saying that may turn some hiring managers off. On the other hand, if you say you are not looking at any other position, it might seem far-fetched or make you look like you’re not aware of your market worth and ability to get a job elsewhere. The best answer here is something along the lines of “Similar roles at companies in this industry where I think I can make a real difference.”