In the US, corporations are filed with one of the 50 states. The information that becomes public record varies by state, but you can always get the registered a

In the US, corporations are filed with one of the 50 states. The information that becomes public record varies by state, but you can always get the registered agent and some basic information about it (date it was created, name, etc). Sometimes that includes share counts, sometimes it doesn't. You can also generally pay a nominal fee (tens of dollars) to get an official copy of filing documents.