if you have a good local hardware shop, stop in and ask.
that is the kinda place a machine shop owner will shop often, and if its a good-old hardware shop the manager or others may know who owns a machine shop or know the owner personally. any good hardware store should be able to direct you to any plumber, construction, roofing, machining place.
I worked at such a hardware store and got to know a machine shop owner. one day I mentioned a RC project I wanted to do, and the idea interested him. he said if I wanted I could come down and work on it with him, for little more than the cost of the materials.