1. US Companies
- Public...EDGAR (10-K filings) from US Securities and Exchange Commission
- Private or Subsidiary...PrivCo
2. International Companies
- Listed...If traded in US, check 20-F filings. Or find out the name of the exchange
- Unlisted (Private)...LexisNexis Academic Company Dossiers
Stock exchange and chamber of commerce of the company's country of origin are also helpful sources to find company information.