Lamar is the largest billboard provide in the country with nearly 5,000 billboards in the Pittsburgh market alone. Billboards are the only ad medium that can reach a huge, guaranteed audience every day.  Unlike TV, Radio, Newspapers and the Internet, you can't turn off a billboard, toss it in the trash or click it away. Billboards are unavoidable. We can help chamber members instantly elevate their market presence and drive new customers to their doors.