Currently, we have Controlling Ownership data for the below countries, from the below sources. 

• UK/Ireland: Data sourced from Companies House.
• Germany: Data sourced from the German Federal Gazette.
• Netherlands: Data sourced from the Netherlands Chamber of Commerce.
• France:  Data sourced from the Institut National de la Propriété Industrielle (INPI).
• Italy: Data sourced from the Italian Chambers of Commerce.
• Austria: Data sourced from the Austrian Business Register.
• Belgium: Data sourced from the Official State Gazette.
• Luxembourg: Data sourced from the Luxembourg Business Register. 
• US/Canada: Data sourced from the Group Structure.

Internal note: Data from the US and Canada doesn't have an official source because companies in those countries don't file shareholder info and most don't have to file financials.