Two things that will help. 1) get ISO certified. 2) find a niche.
In your neck of the woods that could be a turbine blade supplier. GE, Siemens, Pratt & Whitney, U.S. Navy, Caterpillar(Solar) all need QUALIFIED blade suppliers and they're near you.
Not easy to break into but, not all that many can do it. Less competition.
Or maybe parts supplier to BMW, Porsche or ???????
Here in the north country we have a lot of shops supplying Caterpillar, John Deere, Case-New Holland,and the auto industry. They all outsource rather than have to deal with there own (unionized) shops.
Are there any parts common to the gulf area fishing industry? We have a couple of people up here producing stainless steel fittings for boats. We even have a sailmaker that produces sails for regular sailboats and the really fancy race sailors.
Gotta keep looking!!!