I think the more interesting question is which companies make the most money per product.
Apple has 30ish products.
Google is hard to count, because they have a lot of "stuff", but it all could be said to support AdWords. I think that is too lenient of an interpretation. It seems more like AdWords is the Google currency inside of their product ecosystem.
PPS The Red Bull product page has 4 different drinks, unless you believe Coke and Diet Coke are the same product, why would Red Bull Energy Drink and Red Bull Energy Drink Sugarfree be the same product?
PPPS My open source hair-splitting machine written in Python is almost complete.
You're probably just having some fun with semantics, but I'm sure helipad meant to say, "how many companies with essentially one product make billions?"
One product, a few versions. Original, sugar free, small shots - that's about all I know of.
How many other companies make billions with essentially just one product?