Ms. Jemsby began her tenure at WIS after six years serving as Head of School at The Galloway School in Atlanta. At Galloway, she was recognized for strengthening the academic program and enrollment, and upgrading the school’s fundraising, marketing, and fiscal planning.

Prior to Galloway, Ms. Jemsby was Executive Director of the Center for the Advancement and Study of International Education (CASIE), an educational non-profit that provides professional development training to independent and public schools across North America. 

Altogether, she has three decades of experience at international and independent schools in the U.S. and Europe—including Frankfurt International School, Internationale Schule Frankfurt-Rhein-Main, and Atlanta International School—and deep knowledge of the IB program. In addition to her native English, she speaks Swedish, German, and French—and is now working on increasing her proficiency in Spanish.

Ms. Jemsby earned BA and MA degrees in Modern and Medieval Languages at the University of Cambridge, U.K. In 2015, she became a Fellow in the Head of School Program of the Klingenstein Center at Columbia University. Suzanna also attended the London College of Music, and is an avid cellist. She and husband Bjoern have three daughters, one who has graduated from WIS and two in the Upper School.

Dr. Fiona Mayer is a passionate international educator and leader who served as the Chief Education Officer for St. Lucia. She was most recently Head of Primary School for Cedar International School in Tortola and also served in that role for Ecole Mondiale World School in Mumbai, India. Additionally, her background includes several years as Vice Principal of George Charles Secondary School in St. Lucia and of Danube International School in Vienna, Austria. Dr. Mayer has comprehensive experience as a school accreditor with the Middle States Association of Colleges and Schools and is a proud alumna of the University of Liverpool. 

Ms. Merianos joined WIS as the Director of Extended Learning in 2023, with almost two decades of experience in educational program development and management. She previously served as the Director of Summer and Auxiliary Programs at the Green Acres School in Maryland, and Director of Summer Programs at the Madeira School in Virginia. 

Prior to her work within the independent school community, Ms. Merianos designed, managed, and facilitated programs focused on intergenerational learning experiences at The National Building Museum, the Sam & Alfreda Maloof Foundation for Arts & Crafts, and Los Angeles County Museum of Art. 

From 2006-2013, Ms. Merianos directed a large sailing and watersports camp for Girl Scouts of Eastern Massachusetts, spending many adventurous summers on Cape Cod. She holds a BFA in Art Education from Massachusetts College of Art & Design, and a MA in Nonprofit Management from Claremont Graduate University.

Dr. Mulazzi is an international school leader, multilingual educator, and advocate for student well-being and progressive education. From 2019 to 2023, she served as Head of Upper School at Saint George’s School in Spokane, WA, before transitioning to her current role as High School Principal at the International School of Panama. She spearheaded transformational initiatives, including launching phone-free learning spaces, developing student advisory councils, and expanding mental health resources for students and social-emotional learning professional development for teachers. Her leadership is deeply rooted in building inclusive school cultures and fostering collaborative professional learning communities.

Her teaching career spans multiple continents, disciplines, and curricula. She has taught English and French in Singapore, the USA, China, and Zambia, and she holds a K–12 Principal Certification from the New Hampshire Department of Education, an EdD in Leadership, Learning & Community from Plymouth State University, an MEd from the University of Oregon, and a BA in French and Italian Literature from the University of Vermont. 

Ms. Wood came to WIS in 2019 after more than four years at the Galloway School in Atlanta, GA, where she served as director of Human Resources. Ms. Wood previously worked at the City Schools of Decatur in Decatur, GA, where she managed all aspects of human resources for nine schools and more than 700 employees.

Ms. Wood began her career in education in the classroom as a second-grade teacher. She earned her Masters of Arts in Teaching from Emory University and a Bachelor of Arts in History and Political Science from the University of Rochester. Her work experience also includes working in investor services for Morgan Stanley in New York City and a firm in Washington, DC.

Mr. Wynter joined WIS in 2023, taking on the responsibility of becoming the School's first-ever Director of International-Mindedness, Diversity, and Inclusion. Previously, Mr. Wynter served as the Assistant Head of Pastoral and Operations at Wetherby Senior School in London. His responsibilities also extended to managing Wetherby's Equality, Diversity, and Inclusion initiatives.

His work with diversity and inclusion began during his tenure at Dwight School London (his post prior to Wetherby); from 2020–2022 he was the Global Diversity and Inclusion Coordinator, developing and executing strategies and programs for Dwight campuses in London, New York, Shanghai, Dubai, and Seoul.

Prior to moving into leadership roles, Mr. Wynter was a mathematics teacher. He has served as a mathematics examiner for the IB's Diploma Exams, and has also spoken at an IB conference on the subject of developing anti-racist strategies. He received his BEng in Robotics from the University of Plymouth and his MA in Social Justice & Education from University College London.

Before WIS, Ms. Yerbury was a vice president at Bospar, an award-winning PR, marketing, and communications agency, where she executed myriad creative campaigns and content initiatives for Fortune 500 companies, startups, and nonprofits. Ms. Yerbury is a hands-on strategist, writer, and creator who knows the value of imagination and taking smart risks. 

For nearly five years, she also served as director of special projects and corporate communications at a tech startup acquired by Snyk. Prior to her decade in marketing, Ms. Yerbury taught upper school Latin and directed international programs at St. Andrew’s Episcopal School in Potomac, served as the assistant dean of students at Shepherd University, and taught AP U.S. government and history at Norfolk Collegiate School.  

As a teacher, Ms. Yerbury won a Fulbright to the American Academy in Rome and Villa Vergiliana in Cuma, as well as a National Endowment for the Humanities fellowship to delve into contemporary jurisprudence. She earned her Master’s degree in Greek & Latin from Florida State University and trained as a classical archaeologist. She has enthusiastically served Habitat for Humanity, the Haiti Episcopal Schools Partnership Program, and other organizations. Ms. Yerbury loves aviation and has been an FAA-certified private pilot since she was 19.