I found another picture of the bus and I know which company used it, but still no name for the coachbuilder.
I discovered the same image a while back, but as with you, it got me no closer to identifying the coachbuilder.
My location (CA) has been blacklisted by this site. However, the front lights of these buses are completely different. As for the grille, I'm not sure that it is the same.
The company is located in the same vicinity as the coachbuilder and the bus appears to be identical in virtually every respect except for the headlight mountings. In my opinion, this is either the same bus with modified headlight mountings (more likely), or a nearly-identical bus by the same coachbuilder.