Grip-On supplies Snap-On, among other makes, but I'm fairly sure they're not a Snap-on subsidiary. Be careful shopping online, many retailers including Amazon will mis-mark GRIP as Grip-On, showing Chinese **** next to Spanish excellence.
Grip-On =/= Bahco, SO, or anything else. I'm thinking it is it's own company, not a subsidiary of anything else. And for as many of their locking pliers that I've seen, they have all been made in Spain.
I recieved 3 black & orange Grip-On's from Sears in a box instead of the 3 GWrench long handle cushion grips I ordered. But anyways, I didn't like the quality compared to my Peterson VG's.
I'm going to have to go with Monte on this one, they're forged.. cast jaws would just... not work. Even extreme el-cheapo Chinese ones from HF or Walmart are forged.