Yes, always keep in mind that publishers receive a lot of submissions at any given moment, and no matter if they are big or small, not every submission makes the cut or is looked at. There are limitations to how many submissions one company can take on.
So unless you have been contacted by a publisher, always consider resubmitting your work—of course, within reason.
As a rule of thumb, you should wait at least 90 days before resubmitting to a publisher.