Is Regulation A+ an option for International companies?
Yes. If you set up a company in the USA or Canada then you are allowed to use Reg A+ using that entity.
Most companies that take this route set up a "C" Corporation in Delaware, but you can also set up an LLC or a Limited Partnership.
The company must have US-based executives and Board members (not 100% but primarily US-Based). It can operate outside of the USA, and it must have a legitimate business role and rights to satisfy the SEC and to attract investors in the Reg A+ marketing.