Which credit card companies pull from transunion?

Most will pull from all three so it would be hard to get around whatever is hurting you on the other 2 major bureaus.

Some smaller companies may only pull from one but I believe this is based on your location. However, I am not sure how they determine which to use based on that.

You will have to contact the specific company ( bank) and ask them, but in general they may check more than one