by drcontempo » Tue Feb 16, 2016 1:02 am
Try looking at MFG.com, or makers row. Makers row is geared towards textiles and wood products, but they may have industrial processes. You can also check a directory listing at Design 2 part, its a manufacturing convention in Santa Clara, CA, and I've gone a couple times.
As someone who does industrial machining for my own prototypes, I'm in the same boat, and I just used a local machine shop for precision work. I am also looking at manufacturers in China and Thailand, as I have aa connection in Thailand, but not China.
I will most likely do things locally, to avoid risk, and quality control, and if my product does well, and demand/volume goes up, then I will look to mass manufacture in Asia.
Hope this helps, good luck!