I almost want to say that this is supposed to read “Not Everything is Impossible,” but if that were the case, it would be missing letters. It was carefully designed and applied. Maybe the T got lost somewhere along the way or too damaged to use, and the worker just ran with the resulting message?
It could also read “Everything is Possible” if you remove two words. They should probably go ahead and do that, so people will stop judging them for their lack of coherence. It’s a corporate office, so they need to be putting their best foot forward since I’m sure they expect their employees to do the same.