ON-SITE Advertising (OSA,LLC) provides a mix of high quality, non-traditional media for communicating advertising messages. Focused, effective, high impact media to reach your customers. We specialize in the San Francisco market with a variety of local targeted opportunities including wall displays, billboards, wallscapes, gate booms and print advertising in 18 San Francisco neighborhood newspapers. The newest addition to our inventory is our 42" HD digital screen that runs a loop of 10 second commercials that repeat over 900 times a day. Our screen is installed in a prime high traffic parking facility off Union Square.