Any Canadian (Preference) or European Companies that operate US-flagged vessels? Utilizing maritime work to gain residency in a non-US country?

Are there any Canadian or European Companies that operate US-flagged vessels that I could potentially apply to? Is there a track toward working for such a company and then gaining permanent residency within the company's parent country using US credentials? Is there a way to leverage US-based maritime work into a career abroad or permanent residency elsewhere?