I'm in NJ, as well and trying to figure out the same thing. It doesn't seem like there are a lot, from my research (though I would LOVE to be proven wrong!).
What age group/grade are you looking into? and what area of NJ (north, central or south?) That will narrow the scope of schools.
As far as Primoris, I believe it is brand new, and so, probably won't have many reviews. Though it looks pretty cool from the website, if not expensive.
Just wanted to mention, if you are in the southern area, there are a few schools in Philly, and likewise, if you are all the way up north, there are some schools in NY. Also, There seems to be a sort of concentrated area of gifted-type schools in Princeton (central jersey).
if you want to talk more (or in more detail), we could always exchange a PM.
