Thanks for the list of cheeses sold at the cash and carry in Winston-Salem. It is similar to what US Foods is selling at the Chef's Mart in Charlotte, NC - mostly house-brand Roseli cheese with some name-brand Stella (still can't find my notes from that visit) IIRC.
I think the roadmap to PFG's web of cheese brands is that page from the Roma website:http://romafood.com/Products/Pages/CheeseBrands.aspx
and this sheet about the Northland house-branded products:http://performancefoodservice.com/Our-Products/Custom-Solutions/Cheese-Processing.aspx
I once copied some names from scuttlebutt about where PFG was getting their cheese from. Some of names bandied about were Saputo, Davisco (which would be the Lake Norden Cheese Company):http://www.daviscofoods.com/locations/about-lake-norden-cheese.html
Leprino, and from various smaller cheese companies.
I suspect they are buying from multiple cheese companies, especially from those industrial cheese companies who are not a household name and whose cheese is not sold under a brand name but will be sliced and wrapped by some other firm.
In this scenario, we don't gain much even if we knew the real producer of each cheese product was. We wouldn't be able to buy from most of these firms, anyway.
The best we can do is compile the reviews people published about individual PFG house-brand cheeses. It does make sense that if one of PFG's private label brands was made by the likes of Lake Norden Cheese or the DCI Cheese division of Saputo:http://www.dcicheeseco.com/media-room/saputo-products-win-four-awards-wisconsin-state-fair
that it would be better than a Leprino product.
Then there is the matter of the chutzpah in marketing Bacio Cheese. If you go to the Google home page and type
site:linkedin.com Bacio Cheese
in the search box you will get a lot of hits to people who claim they are affiliated with the Bacio Cheese Co., or the names are on the right of page, which only means visitors to that page also looked at the profiles of persons affiliated with Bacio Cheese Company. I guess these folks are like the area manager who gave you samples of Roma cheese; people paid to promote PFG's house brand cheeses to restaurateurs.
All of the resentment stems from the fact that PFG will not make all of their cheese brands easily available to cooking enthusiasts.