Does anyone know where I can find a list of all the brands owned by ultracorporations? (Unilever, nestle, P&G, etc)

Or better yet, a downloadable database that I could work with.

@kboyd
Their Wikipedia entries usually have lists, doubt it includes everything but its def enough to show me that a few companies own most of all brands.

Hell Mars Inc owns like 80% of the pet food market in the US.