Magnite Inc. operates an independent sell-side advertising platform in the United States and internationally. The company offers applications and services for digital advertising inventory sellers, including websites, mobile applications, and other digital media properties, to sell their advertising inventory; applications and services for buyers, such as advertisers, agencies, agency trading desks, and demand side platforms, to buy advertising inventory; and a marketplace over which such transactions are executed. It also provides demand manager services for sellers to monetize their advertising inventory through configuration tools and analytics to make it easier to deploy, configure, and optimize prebid-based header bidding solutions. The company is headquartered in Los Angeles, California.