Product manufacturers contact the best PCB manufacturers for PCBs. The top PCB makers have well-equipped manufacturing centers with latest equipment. They have automated systems and robotic arms that ensure precision component placements and soldering on the boards. You can order all types of PCBs from these manufacturers. Some of them have extended manufacturing capabilities and can make cavity boards, laser drilled microvias, RF boards, microwave boards, via in pad, heavy copper boards, and boards with multiple layers.
Make sure you contact the right manufacturer. A large manufacturer may not deliver quick service for a few prototype boards. On the other hand, a small manufacturer may not have the capacity to make lots of PCBs quickly and economically. Contact a company that can deliver on its promises. Check its reviews and testimonials. Make sure it can make the types of PCBs you need. Look for the pricing and compare the manufacturers on different parameters to find the right company.