Lamar Advertising is a leading outdoor advertising company in the United States, specializing in billboard advertising. It was founded in 1902 by Charles W. Lamar and is headquartered in Baton Rouge, Louisiana.

The company primarily offers outdoor advertising space on billboards and signs located in high-traffic areas such as highways, city streets, and major thoroughfares. They provide advertisers with the opportunity to reach a broad audience through their extensive network of digital and traditional billboards. In addition to traditional billboards, Lamar Advertising also offers transit advertising, airport advertising, and digital displays.

On a global scale, Lamar Advertising operates primarily in the United States, where it has a dominant position in the outdoor advertising market. The company has numerous subsidiaries, including Lamar Outdoor Advertising, Lamar Transit Advertising, and Tri-City Outdoor. These subsidiaries help expand Lamar Advertising's presence in different regions and offer specialized advertising solutions.

With over 340,000 advertising displays across the United States, Lamar Advertising is the largest billboard advertising company in North America. It competes with other outdoor advertising companies such as Clear Channel Outdoor Holdings and Outfront Media. Despite competition, Lamar Advertising has maintained a strong market position and continues to grow its presence in the industry.

Lamar Advertising has achieved several notable events and milestones throughout its history. In recent years, the company has increased its focus on digital billboards, expanding its digital display network across various markets. This shift towards digital advertising has allowed Lamar Advertising to offer more dynamic and targeted advertising options to its clients.

As of the latest available information, Lamar Advertising continues to be a dominant player in the outdoor advertising industry. The company's commitment to innovation and strategic partnerships has contributed to its growth and success over the years. It remains at the forefront of the industry, leveraging technology and data to offer impactful advertising solutions to its customers