Julii Oh is an executive growth, marketing, and brand strategist known for driving measurable transformation. As Principal of OH Marketing Group, she partners with CEOs and leadership teams of ambitious cultural organizations to grow audiences, elevate brands, and increase revenue through sharp strategy, bold creative thinking, and proven methodologies. Her current and past clients include Sydney Symphony Orchestra, San Francisco Ballet, Cleveland Orchestra, Detroit Symphony Orchestra, and Baltimore Symphony Orchestra.

Julii built her reputation by delivering results that matter: growth accelerations, audience expansion, and brand transformations. At the New York Philharmonic, she led a decade-plus run of historic growth, ushering in a younger, more diverse audience—lowering the average audience age by more than a decade—and developing strategies that became widely adopted across the field. At Miami City Ballet, she reignited the brand through bold campaigns and a reimagined Nutcracker experience, including a pandemic-era production that drew national attention and broke attendance records. 

Across clients and organizations, her work has consistently driven record gains, including during leadership transitions and other high-stakes periods. Julii has a long track record of innovation, advancing social-first audience growth strategies in the arts before they became standard practice. Since 2017, she has also applied predictive and AI-informed approaches to strengthen decision-making, sharpen prioritization, and accelerate impact grounded in human insight and judgment.

A former music industry executive and cultural change agent, Julii brings both edge and heart to her work, along with a rare instinct for what resonates at scale. Her history of early adoption consistently translates into results. She thrives where creativity meets strategy and believes the most exciting future for the arts is the one we haven’t invented yet.