I have four cards with Amex Plum card Small Business Gold, blue for Business and Delta Personal. The only card that reports to CRA's are the Delta and Blue for business. Because the other twos are PIF each month. And I haven't check my DnB lately so i'm not sure if they reported to them. But if you own your own Business I would Highly recommend you to get a Plum card Because it has a really great Benefits over all. The only reason why i got the Blue for business and Delta personnal is just to get my ULT higher Because I'm trying to get my scores in the upper 800s. Good Luck and let us know the outcome.