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Joanna leads the Maria Mitchell Association, founded in 1902 on Nantucket Island as the Executive Director. The MMA honors the legacy of Maria Mitchell, a pioneer in astronomy, a leader on Nantucket, and a woman of science. 

Joanna previously served as the Executive Director of GSN Planet and Foundation, where she led two global nonprofits focused on sustainability and education in the hospitality and wellness industry. As a business development and branding expert, she has more than twenty-five years of leadership experience in executive management, marketing, and operations, she is skilled in driving financial growth and brand engagement. She has consulted on numerous new capital and development projects, managing budgets, financial oversight, and revenue growth. She also served as an executive at the Westmoor Club where she led the vision, revenue growth, and staff of the Club’s Wellness Center. Earlier in her career, Joanna was Executive Vice President and Chief Creative Strategist for Pierce Mattie Public Relations in New York and worked as the Communications Director on the executive management and corporate marketing teams at Canyon Ranch for eight years. 

Originally from the Berkshires, in western Massachusetts, Joanna has always been active in the communities where she has lived, serving on many local boards and committees. She is a long-time member of the Town of Nantucket Finance Committee and sits on the Coastal Resiliency Advisory Committee and the town’s Contract Review Committee for Human Services. 

Joanna is also a well-known speaker, hosted a long-running radio show here on Nantucket, and is a wellness and meditation teacher. She loves the outdoors and is a longtime runner and yogi.