Eastman, Gorrila, and Cabon Express (same company I believe) have posted media alerts at the tops of their sites stating they have declined involvement with WHA. G5 outdoors is another story however...they are in cahoots with WHA and are helping, so far, to develop the drug delivery system as well as sponsoring.

http://www.gorillatreestands.com/

http://www.eastmanoutdoors.com/

http://www.carbonexpressarrows.com/