I am looking for a cold shoe mountable bracket that will hold two wireless receivers. I want to mount the receivers vertically so I can see their displays and LED's when standing in back of the camera. Most setups have the receivers facing upward, not rearward. I would appreciate any suggestions.

Jim, maybe this will work for you. You can mount the receivers backwards on it.

Tri-Mount Camera Accessory Mount - Dual Triple Hot Shoe Mount - Tri Mount (http://www.studio1productions.com/tri-mount.htm)