What credit card companies use equifax and experian for approval?

VArious ones, remember it is not like VISA is one card, but many cards done though 1000's of banks so it can be either or both or even the other one you did not list.

Like to know if my fathers owed loans on his property estate. My father passed away a year ago and its in probate , what is the administrator job in the factor. The house sold for
325,000.00 there was no will so we divide it between 3 living siblings . The eldest brother filed for administrator, and claims after all the bills are paid and his lawyer that me and my other brother will walk away with a little over 10,000.00 is that sound reasonable?

what credit card companies use equifax and experian for approval?
I have noticed that different regions pull different reports. I live in the Northwest and the banks here seem to pull Equifax. The East Coast seems to rely on TransUnion. The southwest states seem to pull Experian.