Meet the Global Citizen, LLC Team
Katherine L. Turner, MPH
Katherine L. Turner, MPH is the Founder and President of Global Citizen, LLC, and Adjunct Professor at UNC-Chapel Hill. Katherine’s migratory and international upbringing, during which she lived in seven U.S. states and five countries, formed her intercultural and global citizen identities, values, and worldview.
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Katherine is an internationally-recognized organizational transformation consultant, executive leadership coach, inspirational trainer and speaker, board member, thought leader, and social change agent who has worked in English, French, and Dutch in more than 50 countries spanning five continents.
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As Adjunct Professor at UNC-Chapel Hill, Katherine teaches graduate courses on leadership, systems and design thinking, global health equity, intercultural competence, diversity, equity, inclusion, and belonging (DEIB), and related topics and mentors the next generation of global leaders. She has published articles, textbook chapters, and videos on leadership, organizational change management, intersectional DEIB, racial, gender, and LGBTQ+ inclusion and equity, and sexual and reproductive health and rights. She authored the Diversity, Equity, Inclusion, and Intercultural Competence in Leadership chapter in the Leadership in Practice: Essentials for Public Health and Healthcare Leaders textbook that is taught in university programs worldwide.
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Katherine graduated with honors with a B.A. in psychology and certificate in women's studies and nonprofit management from Duke University and a master of public health (MPH) from UNC-Chapel Hill Gillings School of Global Public Health. She served as a Peace Corps volunteer and national trainer in Togo, West Africa and held senior leadership positions at the Durham County Department of Public Health and Ipas, an international nongovernmental organization.
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Katherine founded Global Citizen, LLC in 2011, driven by her commitment to develop effective, inclusive leadership, advance equity and belonging, and effect organizational transformation and social impact. Global Citizen, LLC collaborates with leaders in all sectors across the United States and worldwide to develop high-performing leaders and teams, conduct strategic assessments, visioning, planning, and execution, drive organizational transformation to align vision, mission, values, policies, strategies, and culture, and deliver high-impact results for a better world.
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Katherine’s other current and recent leadership roles include serving on the Harmony NC LGBTQ+ Chamber of Commerce Board, U.S. Global Leadership Coalition’s N.C. Advisory Committee, N.C. Coalition for Global Competitiveness, Equality North Carolina strategic advisor, Duke University LGBTQ+ Alum Network Board, and as Co-Chair of the Out for Harris-Walz NC Campaign’s Leadership Council. She was selected and served in How Women Lead’s Women Leaders for the World Fellowship Program. She is a member of the Interim Executive Solutions (IES) Network, a national collective of experienced interim executives who help nonprofit organizations navigate leadership transitions, strengthen operations, and build long-term capacity and resilience. She has founded and led the boards of directors of nonprofit organizations and won academic and industry awards for excellence in leadership, education, public health, and advocacy.
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Client partners have described Katherine as “agile, curious, open minded, collaborative, a trusted advisor, an exceptional and engaging thought partner, trainer, and facilitator, a leader who shows by example how cultural competence is built, an inspiring and tireless advocate for equity, social justice, and community engagement, and a professional who delivers exceptional results far beyond the initial investment.“
Graduate Fellows
Haylee Osgood, MPH
Haylee Osgood, MPH, is the inaugural Global Citizen, LLC Graduate Fellow at the UNC Gillings School of Global Public Health. Her commitment to public health was shaped by early work in cardiology and pediatrics, where she saw how cost, access, and education barriers limited patients’ ability to receive necessary care. That experience propelled her toward a career focused on systemic, equitable solutions.
Haylee has advanced equity-driven initiatives both globally and locally, including supporting reproductive health access in Bangladesh and helping community health centers across North Carolina strengthen cancer screening efforts in underserved areas. Through her Fellowship with Global Citizen, LLC, she contributes to programming on authentic networking and leadership, leadership coaching, community activism for equitable access to healthcare and rights, and addressing implicit bias in organizations. Across all of her work, Haylee remains dedicated to culturally grounded, community-centered, and justice-focused approaches to health.
Sejal Buch
Sejal Buch is a Master of Public Health student at the UNC Gillings School of Global Public Health, specializing in Health Behavior. She holds a degree in Cognition and Neuropsychology from the University of Michigan and previously worked as an Implementation Specialist at Epic Systems, where she developed a passion for collaborative, person-centered care. Her background in value-based care and global systems thinking shapes her approach to sustainable and equity-driven public health solutions. Sejal has supported initiatives in youth advocacy, HIV prevention, and tobacco cessation, consistently working to bridge evidence and practice. She most recently partnered with NAMI Wake County to elevate mental health as a public health priority.
As a Global Citizen, LLC Fellow, Sejal continues to learn and collaborate across sectors and disciplines. Through the Fellowship, she supports leadership development sessions and contributes to work on cultural humility, inclusive practices, and authentic advocacy. Across all of her work, Sejal is committed to approaching public health locally and globally, centering dignity, challenging inequity, and co-creating sustainable solutions that improve lives.