You can check your credit reports with a free service, or use your free annual credit report, to verify which bureau BofA and Chase pulled. It looks like it varies for Seattle.
Amex generally pulls Experian in Seattle.
It looks like Citibank most often pulls TransUnion in Seattle, which will be good for you, since TransUnion is the hardest to find issuers that pull (only Barclay's pulls TransUnion in many areas).