I don’t see Berkshire Hathaway on that chart. They own too much not to be included.
The chart is all “consumer products”.
BH is more into insurance, industrial, etc although they do have Dairy Queen, Fruit of the Loom, and some others.
But consumer products is a fairly small slice of BH.
http://www.berkshirehathaway.com/subs/sublinks.html
The chart is concerned with consumer goods -- i.e., brands you'd find in a supermarket.
Berkshire Hathaway is not a consumer goods company.