self-sufficient
adjective
FINANCE, COMMERCE uk/ˌselfsəˈfɪʃənt/ usable to provide everything you need for yourself, especially food, without buying from or being helped by others:
be self-sufficient in sth Currently, the UK is only 62% self-sufficient in beef.
Building its own marketing organisation in the US would allow the company to become financially self-sufficient and market its own products.