Rhianna Donaldson
Communications Lead at Day One Ventures
About Rhianna
Rhianna is the Communications Lead at Day One Ventures, early investors in Sam Altman's World, Remote.com, Invisible, Rainmaker, Valar Atomics, Orchid Health, Superhuman, Caroline Spiegel's Quinn. Based in New York, her experience in PR spans the full spectrum—from pre-seed startups with big ideas to established unicorns. Before joining Day One Ventures, she served as an Account Supervisor at Outcast, where she led PR strategies for AI leaders OpenAI and SambaNova, as well as startups across biotech, legal and consumer brands.
With a unique cross-Atlantic perspective—having started her career in Outcast's London office before transferring to New York—Rhianna specializes in translating complex innovations into compelling narratives. She combines strategic insight with creative storytelling to help portfolio companies amplify their vision as they build the future.
Rhianna obtained a First Class degree in History and Italian Joint Honors from the University of Leeds, including a Milan-based placement as a legal translator at a Legal 500 firm.
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