OP can buy stocks with bitcoin, there are online brokers who accept bitcoins and they are not limited to specific countries.
Interesting, do you have any examples? And more to the point, are they reputable and won't run off with my bitcoins?
EDIT: Noticed I am now Legendary! Whoopee! (not that it really means anything

)
Yes, I'd like to know those companies, too. A link would be most helpful.