A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 100,471
There's also a major established competitor that solicits bids for upgrades on behalf of a number of airlines, including some European carriers.
Plus, airlines have amazing data on this which I doubt they would share with some outside firm that might also work with competing carriers.