Age is one of those brands that is very distributor-dependent in terms of what's available in a given market. I'm told by BT that 10 Star is six years old and is in something like 22 states, while the 10-year-old is only available in Kentucky and Chicago. Also, while BT/Sazerac is very involved with the brand, and makes it obviously, they don't own or ultimately control it. The company Age International still exists and controls Age, Blantons, ETL, Rock Hill, etc. Most of the single barrels, though not Eagle Rare. I don't really know who Age International is, but they have their own offices in downtown Frankfort. Since most of the people I've met who are part of Age are Japanese, I suspect it is a subsidiary of Takara Shuzo, a Japanese company.
Because Sazerac is a private company they are able to keep a lot of things about their business quiet and choose to do so. President Mark Brown is very good about it, though, in that he doesn't dodge questions, he just politely declines to answer them.