I have an Amex Gold personal card and a Amex Business Platinum card. I was just approved for a Delta SkyMiles Gold card last week but I haven't received the card yet. I know that Amex regularly reports my Gold card activity to the credit bureaus and has been doing so since I held their basic Green card. I keep a close eye on my credit reports and credit scores. But I didn't see the Business Platinum trade line in my Experian report when I recently pulled it. I'm wondering if Amex reports business cards to Dunn & Bradstreet. Does anyone know?