Vistra Executive and Leadership Team

Dyland Mah, the Chief Executive Officer at Vistra, directs the overarching corporate strategy and long-term vision for the organization. Mah oversees the integration of risk, compliance, and advisory services to ensure consistent value delivery for international clients. By aligning departmental goals with the broader mission of providing resilient administrative solutions, the Chief Executive Officer maintains operational excellence across the global footprint. This leadership role involves constant engagement with the Board to refine market positioning and drive sustainable growth. Dyland Mah monitors performance metrics to ensure the firm meets complex regulatory standards while expanding service capabilities. Through rigorous oversight of the executive team, the Chief Executive Officer fosters a culture of accountability and innovation. Ultimately, Mah secures the competitive advantage of the firm by anticipating shifts in the global business landscape and adapting service delivery models to meet evolving client requirements.

Michelle Ketsler, the Chief of Staff To the Chief Executive Officer at Vistra, facilitates the execution of strategic priorities and manages the flow of information between the executive office and the broader organization. Ketsler coordinates high-level projects, ensuring that the Chief Executive Officer remains focused on critical business objectives and long-term growth initiatives. By streamlining communication channels and managing the executive agenda, the Chief of Staff To the Chief Executive Officer enhances the efficiency of the leadership team. This role involves synthesizing complex data from various departments to support informed decision-making. Michelle Ketsler monitors the progress of key corporate initiatives, ensuring alignment across all business units. Through the proactive management of internal and external stakeholder relationships, the Chief of Staff To the Chief Executive Officer maintains organizational cohesion. Ketsler drives the implementation of strategic plans, ensuring that the firm's mission remains central to all operational activities.

Linh Gigler, the Chief Financial Officer & Head of & Treasury Services at Vistra, manages the global financial health and treasury operations of the organization. Gigler oversees capital allocation, financial reporting, and the strategic management of treasury services to ensure liquidity and fiscal stability. By directing the financial planning and analysis functions, the Chief Financial Officer & Head of & Treasury Services provides the data-driven insights necessary for informed decision-making at the executive level. This role involves maintaining rigorous internal controls and ensuring compliance with international accounting standards. Linh Gigler coordinates with regional finance teams to optimize cash management and mitigate currency risks across diverse jurisdictions. Through the development of robust financial frameworks, the Chief Financial Officer & Head of & Treasury Services supports the firm's growth initiatives and long-term sustainability. Gigler ensures that all financial operations remain transparent, efficient, and aligned with the broader corporate objectives.

Yohei Nishimatsu, the Chief Operating Officer (Japan) at Vistra, manages all internal business processes and service delivery frameworks within the Japanese market. Nishimatsu architects operational workflows that support the firm's core offerings in finance, accounting, and administration. By streamlining regional service delivery, the Chief Operating Officer (Japan) ensures that local client engagements align with global quality standards. This role requires close collaboration with regional leadership to optimize resource allocation and improve operational efficiency. Yohei Nishimatsu drives the implementation of standardized compliance protocols to mitigate risk for clients operating within the complex Japanese regulatory environment. Through the continuous refinement of administrative support systems, the Chief Operating Officer (Japan) enhances the overall client experience. By focusing on scalable infrastructure and process automation, Nishimatsu supports the firm's objective of providing resilient solutions that facilitate seamless business operations for multinational entities.

Scott Wang, the Chief Operating Officer, Greater (China) at Vistra, directs the operational strategy and service execution across the Greater China region. Wang oversees the delivery of complex advisory, transaction support, and administrative services tailored to the unique demands of this high-growth market. By architecting localized operational models, the Chief Operating Officer, Greater (China) ensures that the firm maintains a competitive edge while navigating intricate regional regulatory landscapes. This role involves managing cross-functional teams to deliver high-quality accounting and compliance solutions. Scott Wang drives initiatives to enhance service speed and accuracy, directly impacting client retention and regional revenue growth. Through the integration of global best practices with local market expertise, the Chief Operating Officer, Greater (China) strengthens the firm's presence. Wang ensures that all regional operations remain agile, compliant, and fully integrated with the global service network to support multinational client needs.

Douglas Davis, the Group President at Vistra, oversees the performance and strategic direction of the firm's primary business divisions. Davis directs the execution of service delivery models across the global portfolio, ensuring that risk, compliance, and advisory solutions meet the highest standards of quality. By managing the operational performance of key business units, the Group President drives revenue growth and market expansion. This role involves close collaboration with the executive team to identify new business opportunities and optimize existing service lines. Douglas Davis monitors market trends to ensure the firm remains at the forefront of the industry. Through the strategic oversight of divisional leaders, the Group President ensures that all business activities align with the firm's overarching mission. Davis maintains a focus on operational efficiency and client satisfaction, ensuring that the organization continues to provide resilient and sustainable solutions to its diverse international client base.

Rachel Garcia, the Office of the President at Vistra, supports the strategic initiatives and operational oversight of the executive leadership team. Garcia manages critical projects that span multiple departments, ensuring that the firm's objectives in finance, accounting, and administration are met with precision. By facilitating cross-functional collaboration, the Office of the President ensures that the firm's strategic vision is translated into actionable tasks. This role involves analyzing operational data to identify areas for improvement and efficiency gains. Rachel Garcia coordinates the implementation of corporate policies, ensuring consistency across all global operations. Through the proactive management of executive priorities, the Office of the President supports the firm's commitment to providing resilient solutions. Garcia ensures that the leadership team has the necessary support to drive growth and maintain the firm's reputation for excellence in risk and compliance advisory services.

Celeste Munoz, the Chief People Officer at Vistra, directs the global human capital strategy, including talent acquisition, leadership development, and organizational culture. Munoz oversees the implementation of programs designed to attract and retain top-tier professionals capable of delivering complex advisory and compliance services. By fostering an environment of continuous learning and professional growth, the Chief People Officer ensures that the workforce remains equipped to handle the evolving needs of global clients. This role involves aligning human resources policies with the firm's strategic goals to drive performance and employee engagement. Celeste Munoz manages the integration of diverse regional teams into a unified corporate culture. Through the development of robust performance management systems, the Chief People Officer supports the firm's commitment to excellence. Munoz ensures that the organization maintains a high-performing workforce that reflects the firm's values and supports its mission of providing resilient business solutions.

Meranda Cohn, the Chief Communications Officer & Vice President, Corporate Affairs at Vistra, manages the firm's global reputation, internal communications, and external stakeholder engagement. Cohn directs the development of messaging strategies that articulate the firm's value proposition in risk, compliance, and advisory services. By overseeing corporate affairs, the Chief Communications Officer & Vice President, Corporate Affairs ensures that the firm's public image remains consistent with its commitment to resilience and sustainability. This role involves managing media relations, crisis communications, and brand positioning across international markets. Meranda Cohn coordinates with the executive team to ensure that corporate messaging supports strategic growth initiatives. Through the implementation of effective communication frameworks, the Chief Communications Officer & Vice President, Corporate Affairs fosters transparency and trust with clients and partners. Cohn ensures that the firm's mission and achievements are effectively communicated to all relevant audiences, reinforcing the organization's market position.

Jonathan McLean, the General Counsel & Chief Legal Officer at Vistra, directs the global legal strategy and ensures compliance with international regulatory requirements. McLean oversees the management of legal risks associated with the firm's advisory, transaction support, and administrative services. By providing expert legal guidance to the executive team, the General Counsel & Chief Legal Officer ensures that all business activities align with global standards and local laws. This role involves managing complex legal matters, including corporate governance, contract negotiations, and regulatory filings. Jonathan McLean coordinates with regional legal teams to mitigate exposure and protect the firm's interests. Through the development of robust compliance frameworks, the General Counsel & Chief Legal Officer supports the firm's mission of providing resilient and sustainable solutions. McLean ensures that the organization maintains the highest level of integrity and legal compliance, safeguarding the firm's reputation in the global marketplace.