A Los Angeles media agency once used its client page to question the client-logo wall. Its alternative tells you something useful about buying advertising: ask who did what, then ask what happened.
Horizon Media became one of America’s largest media agencies without joining a global holding company. Now it is trying to prove that independence can be more than an ownership detail - it can be a product strategy.
The independent agency built its name buying digital ads. Its next act is harder: proving which dollars actually caused growth, and exposing the ones that did not.
Amanda Richman is VP of Global Media Sales at Microsoft Advertising, leading a 700+ person omnichannel sales team from New York. A 30-year veteran of media and advertising, she has run agencies including Wavemaker US and Mindshare North America, winning Adweek's U.S. Media Agency of the Year at Wavemaker in 2020. She joined Microsoft in March 2024 to help brands navigate the convergence of generative AI, search, and connected TV advertising.