I asked NetPosse about it. Here is what they said.
Stolen Horse International, Inc. Aka NetPosse.com
This organization has been around for years. They were the first I recall that did a "no kill" universal brand. I haven't heard much about or from them in while, but that doesn't mean anything negative about them. I haven't heard of the EquiSafe chip. I'd have to ask Debi or research to find out more. The biggest thing we've found is that most orgs selling chips don't have the access to or availability to the public of their chip database should a horse become missing or stolen. As for the brand ... each State has requirements before you can apply a brand to a horse. I don't know how it can be registered in your name if someone else in the state has already done so. Maybe they explain that on the site (?) ... Those are just my thoughts. I'm not sure what info you might be looking for. ~ Angela