There are a couple of very good OEM manufacturers in Taiwan and China that use Ti. However, they won't even talk to you unless you have good credentials or you are willing to order at least, say, 500 pieces at the minimum and have your own design (or hire them to develop it for you).
OEM means Original Equipment Manufacturer. That means they produce things as parts of a whole. Generally in Taiwan that means that they supply only to factories that assemble bikes on behalf of the buyer.