You need to be a little more specific as to what your needs are. There are a shit load of machine shops in Hialeah that do all kinds of work. State your needs, and I might be able to guide you. I'm in north Miami.
Trying to find someone that can help me put together an idea for a "Drop-on" Tactical Bolt Knob made of Aluminum. From design to manufacturing. I believe I found someone but have only spoken to him over the phone. Appreciate you guys chiming in. Thanks, Olive
You could try Hansa Research in Miami. It's been some time since I used them, but the work was first class. If the original owner is still there, he is an engineer who has worked for NASA, and taught at UM.