There's a lot of chatter on different dog related forums about Blue being sold.
An earlier post on this thread intimated that as well.
EDITED DUE TO ZOOKEEP'S POST - now this makes more sense- Mr. Bishop is starting a new company....
Heartland Pet Foods is a wholly owned subsidiary of The Blue Buffalo Co., which is headquartered in Wilton, Conn. CEO Bill Bishop helped found the SoBe (South Beach) Beverage Company that was purchased by Pepsico for a reported $370 million
Blue Buffalo Builds Heartland Pet Products in Joplin | Corporate Connecticut The Magazine
I don't know which third party they use to manufacture their food though. Blue may have changed the third party they use to manufacture their foods. In the past they used several different companies for their dry, canned and cat foods including American Nutrition and C&J foods.
Having shared the above, I can attest to the fact that Blue has changed the ingredients on it's products.
I detailed one of the changes to the Lamb & Brown Rice formula the reduced the amount of meat protein. My friend who was product demonstrator for Blue also noted changes over the last few years. She no longer works for them.
I switched off of it two years ago for that reason, why pay more $$$ when they were cutting corners? They ramped up their marketing big time.
The owner of Blue has followed a similiar strategy in the past, business model-wise.
I don't feed it any longer so I don't have any skin in this, but in researching this I did notice a lot of people on the other dog forums (due to problems w/ the food and recalls) were switching to Fromm.