I can't think of any either right now[1], with the exception maybe of very old ISAs where the stack is not in regularly addressable memory at all, and instead fixed depth formed by effectively a bunch of registers. But it might be hard to even define any notion of "upwards" or "downwards" on those.

[1] EDIT: This comment mentions PA-RISC: https://news.ycombinator.com/item?id=27079832