You can find listings of the top PCB manufacturer's, I'm sure a few are US, (number grows smaller every year), at either wxw.pcdandm.com or wxw.circuitree.com - of course replace "x".
It's great. Alouth the price on www.ezpcb.com could be cheaper, but the cost for transportation must be concerned. If the quantity reachs several doezens, it's worth paying for DHL
Mike