Gadgeteer:how to get to product from prototype

I saw a lot of Gadgeteer modules are sold here. I have no doubt that I can get my prototype up and running with them easily. Let’s say I demo this prototype to my customer and they are very satisfied with that and want to investe to make it a reall product and sell to the consumers. Is there any manufacturer services/business provided by seeed? If yes, how about the requirements and price there? If no, is there any other vendors you can refer to? Thanks.