Beast Tamer (3.5 Base Class, PEACH)

[eftexar]

I think it definitely fits squarely into tier 3. Although I have always thought it hard to balance classes with companions or minions (you obviously want the character to have a few weakness that his companions must cover, but at the same time don't want a useless character that sits back and watches.).
I would drop one of these stats (HD (to d6), BaB (to 15), or will save (to 6)).