Fullscreen, LLC was an American entertainment company which offers tools, services, and consultation to social media content creators and brands, multi-channel network. It was owned by Otter Media, which is now a subsidiary of Warner Bros. Discovery. Fullscreen also provided channel management and optimization services for brands and media companies to grow their presence on social media. Fullscreen's clients included NBCUniversal, Fox, Fremantle, JASH, Fine Brothers Entertainment, Mattel, WIGS and more.