1. Try the company search service offered by Hoovers, online at Hoovers.com. This company is a well-established and well-known entity for supplying information necessary to find out who owns a company.
2. Another place to visit is Idexec.com. At this site, you can run a company search to obtain information on how you can find out who owns a company.
3. At Zapdata.com, this service also gives you the opportunity to locate information on how you can find out who owns a company, as well.

Should you need another online site to search for the purpose of learning how you can find out who owns a company, try performing a search with a good Google search.