About Us

Michael S. Schell is CEO and co-founder of RW3 CultureWizard. For over 30 years, he has pioneered practical tools and approaches to build cross-cultural intelligence and work effectively across cultures and different working styles.

In his previous company, Windham International (sold to GMAC), he created the Windham Intercultural Model, now known as the RW3 Cultural Model, used to strengthen intercultural communication and collaboration.

Michael also co-authored Capitalizing on the Global Workforce: A Strategic Guide to Expatriate Management (McGraw-Hill, 1997) and Managing Across Cultures: The Seven Keys to Doing Business with a Global Mindset (McGraw-Hill, 2009) with Charlene Solomon.

At RW3 CultureWizard, Michael and Charlene have developed a digital learning platform along with a suite of courses, assessments, and tools that strengthen global business skills and organizational performance.

Charlene Marmer Solomon is President and co-founder of RW3 CultureWizard. She leads content, product development, and operations, including Client Service and the in-house technology team.

Throughout her career, she has focused on cross-cultural communication and global workforce effectiveness, helping organizations navigate how people collaborate across cultures, distances, and working styles. She is co-author of Managing Across Cultures: The Seven Keys to Doing Business with a Global Mindset (McGraw-Hill, 2009), widely recognized as a definitive guide in the field.

An award-winning author of eight books, Charlene has also contributed extensively to cross-cultural communication and global workforce topics through hundreds of articles and as a lecturer at UCLA. She is a frequent speaker on global business and workforce trends and has been featured across leading media and industry forums. She also lived and worked in Japan, where she studied the language and culture and developed curriculum for Japanese professionals.

Joshua Sturtevant is the Chief Technology Officer & Vice President of Business Strategy at RW3. Since 2006, Joshua has played a foundational role in building RW3’s products and services, as well as fostering the company’s growth through strategic partnerships and category expansion.

In addition to leading the product and technology teams, Joshua has guided RW3’s marketing technology strategy and played a key role in developing distribution and content partnerships. As a member of the executive team he has helped shape RW3’s workplace culture and business strategy throughout his 17 years with the company.

Since 2020, Joshua has also led RW3’s Advisory Practice, developed in response to an increasing market demand for policy, strategy and talent engagement consultation. Through Advisory Services, RW3’s clients can use the rich data gleaned from aggregated, anonymous results of CultureWizard’s assessments to gain insights into their workplace’s culture and capacities for inclusion. Working with RW3’s expert learning and content teams, Joshua helps consult with clients on training and policy interventions that can help them create a more inclusive workplace.

Sean Dubberke is Chief Learning Officer at RW3, based in New York City. He leads strategy, content development and delivery for the company's digital and facilitated learning practice areas. He leads a team of learning operations directors, instructional designers, and a global network of facilitators, consultants and speakers with whom his team partners to design and deliver learning worldwide. His role also entails responsibility for the company's culture transformation offering, which provides clients with the tools to measure and align workforce behavior with vital corporate cultural values and guiding principles that drive growth and support the mission of the organization.

Throughout his career, Sean has spoken at hundreds of conferences and internal corporate learning events in North America, Asia, Europe, and Latin America. He also serves as a facilitator of learning for groups and individuals at all levels of the organization.

Sean's experience and subject matter expertise spans global & inclusive leadership development, organizational culture transformation, executive coaching, global / virtual / hybrid team building, global mindset development, intercultural communication, global inclusion, inclusive collaboration, broad D&I learning, LGBTQ inclusion, implicit bias, difficult conversations, feedback, country-specific cultural consulting, intercultural assessment, train-the-trainer, onboarding, stakeholder needs analysis and reporting, facilitator performance management, and beyond.

Sean specializes in collaborative, interactive, and social learning that engages participants to take new perspectives and develop cultural agility. Leveraging his expertise in the CultureWizard Intercultural Model©, Sean’s approach is practical, enlightening, and passionate. His sensitivity to diverse learning styles allows him to tailor his style to support client objectives in the most effective way.

Sean holds a Master of Science in Economic History from the London School of Economics, a Master of Arts in Global Studies from the University of Leipzig, Germany, and a Bachelor of Arts in Global Studies with a focus on Socioeconomics and Sociocultural Anthropology from the University of California, Santa Barbara. He speaks Spanish fluently and has studied Arabic, German, French, and Japanese. Sean has traveled to over 65 countries and has lived and worked abroad for 3 years in Germany, Spain, and the UK.