Outdoor hub news reports lots of vendors such as ruger,NRA, Smith and Wesson, and a list goes on and on..can be looked at so far at this link
http://mynortheastoutdoors.com/esos-boycott-supporters/ have withdrawn from the exibit at the Eastern Outdoor show...Pa.
Those in charge of the show have gone against legal gun owners and the 2nd by the ban of semi auto guns etc etc.vendors can bring to the show...check it out. Interesting. Maybe the ball is starting to roll? Hope others in this great Country of ours follow if they run up against anyone that puts a ban on such events.