I had a discussion regarding this issue with FinCEN many years ago (and of course that, in reality, means nothing) and I was instructed to list both if they were different "types" of businesses such as a convenience store and a shoe store. I was advised to show only one if they were both convenience stores. I was inquiring on one of my customers operating under about 7 different names (all gas/convenience stores). If my customer only had two names, I would probably list both if my system permitted to avoid potential problems in future exams.
Life without Jesus is like an unsharpened pencil - it has no point.