The best way to help managers know you are successful is to "toot your own horn." Start by making a list of the many things you do in your job. List the projects you're involved in, the teams you belong to, or any special assignments you've completed. Then list the results of those activities. For example, let's say you are the leader of a documentation team. As you analyze what you do, you begin to realize that you've had some great results, which might include reducing costs, improving processes, or saving time while producing better documentation.
Why focus on results? Because the results you've achieved are a strong indicator of what you do best. Once you've identified the results of your work, tell others. You can mention your results to a supervisor during a staff meeting, make sure your written reports include statements about the results of your work, or pin up a note on the wall of your office to remind you (and others) of your success.