ASML Executive and Leadership Team

September, 2026

Leadership Overview

ASML has 4 executives leading key functions including strategic project management, extreme ultraviolet development, human resources, and holistic lithography engineering.

Focused on advancing semiconductor manufacturing through extreme ultraviolet technology, ASML drives global innovation by enabling the production of increasingly powerful microprocessors and memory chips for the digital age.

Leadership Roles at ASML

  • Strategic Project Management Office Chief of Staff - Ying Huang
  • Euv D & E Chief of Staff (SAN Diego) - David Tamayo
  • HR & Project Management Office Chief of Staff (US) - Kellie Fasching
  • Chief of Staff (Hmi D & E) - Stephanie Buitendijk
  • Ying Huang - Strategic Project Management Office Chief of Staff

    Ying Huang, the Strategic Project Management Office Chief of Staff at ASML, directs high-level operational initiatives across the global organization. Huang architects complex project frameworks that align internal resources with the development of advanced photolithography systems. By coordinating cross-functional teams, the Chief of Staff ensures that research and development cycles remain synchronized with the aggressive timelines required by major semiconductor foundries. This leadership role involves optimizing internal workflows to support the production of deep ultraviolet lithography equipment. Ying Huang maintains rigorous oversight of project milestones, ensuring that technical advancements translate into scalable manufacturing solutions. Through the implementation of standardized management protocols, the Chief of Staff enhances operational efficiency across the entire supply chain. By fostering collaboration between engineering departments and executive leadership, Huang secures the necessary alignment to push the boundaries of Moore's Law, ultimately strengthening the market position of the company within the global semiconductor ecosystem.

    David Tamayo - Euv D & E Chief of Staff (SAN Diego)

    David Tamayo, the Euv D & E Chief of Staff (SAN Diego) at ASML, oversees the technical development and engineering operations for extreme ultraviolet lithography systems. Tamayo manages the integration of sophisticated light-projection technologies that enable the manufacturing of cutting-edge chips at nanometer scales. By driving North American engineering initiatives, the Chief of Staff ensures that the San Diego facility contributes effectively to the global production of EUV machines. This role requires constant interaction with research institutions and chipmakers to refine the precision of circuit pattern projection. David Tamayo coordinates the technical roadmap for EUV advancements, ensuring that hardware capabilities meet the demands of artificial intelligence and high-performance computing applications. Through the management of complex engineering workflows, Tamayo supports the continuous evolution of semiconductor nodes. By maintaining high standards in equipment design and technical support, the Chief of Staff facilitates the delivery of revolutionary manufacturing tools to global semiconductor manufacturers.

    Kellie Fasching - HR & Project Management Office Chief of Staff (US)

    Kellie Fasching, the HR & Project Management Office Chief of Staff (US) at ASML, directs human capital strategies and project governance across the United States operations. Fasching architects talent acquisition and development programs that support the specialized workforce required for designing advanced lithography equipment. By aligning human resources with project management objectives, the Chief of Staff ensures that technical teams possess the necessary expertise to maintain the company's leadership in the semiconductor industry. This role involves overseeing organizational growth and operational efficiency within the North American market. Kellie Fasching facilitates communication between regional leadership and global headquarters to ensure consistent application of corporate standards. Through the optimization of internal project management processes, the Chief of Staff drives productivity and supports the successful installation and maintenance of lithography systems for major foundries. By cultivating a high-performance culture, Fasching enables the company to sustain its competitive advantage in the global technology landscape.

    Stephanie Buitendijk - Chief of Staff (Hmi D & E)

    Stephanie Buitendijk, the Chief of Staff (Hmi D & E) at ASML, directs the strategic development and engineering efforts for Holistic Lithography and metrology systems. Buitendijk oversees the integration of advanced inspection and measurement technologies that ensure the precision of circuit patterns on silicon wafers. By managing the development roadmap for HMI systems, the Chief of Staff supports the production of increasingly smaller and faster microprocessors. This leadership role involves coordinating with engineering teams to refine the accuracy of lithography equipment, which remains essential for the next generation of electronic devices. Stephanie Buitendijk facilitates collaboration between technical departments to ensure that metrology solutions align with the broader goals of the semiconductor supply chain. Through the oversight of complex development projects, the Chief of Staff drives innovation in chip manufacturing capability. By optimizing the performance of inspection systems, Buitendijk ensures that the company continues to provide the essential tools required for digital transformation and high-performance computing.

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    Frequently Asked Questions Regarding ASML Top Executives and Leadership Team

    Who leads ASML?
    ASML is led by Ying Huang (Strategic Project Management Office Chief of Staff), along with executives such as David Tamayo (Euv D & E Chief of Staff (SAN Diego)) and Kellie Fasching (HR & Project Management Office Chief of Staff (US)).
    Who is part of ASML’s executive team?
    The executive team of ASML includes leaders such as Ying Huang (Strategic Project Management Office Chief of Staff), David Tamayo (Euv D & E Chief of Staff (SAN Diego)), Kellie Fasching (HR & Project Management Office Chief of Staff (US)) and other senior executives.
    How many executives does ASML have?
    ASML has 4 executives leading key business areas.
    What roles are included in ASML’s leadership team?
    The leadership team of ASML includes roles such as Strategic Project Management Office Chief of Staff, Euv D & E Chief of Staff (SAN Diego), HR & Project Management Office Chief of Staff (US), Chief of Staff (Hmi D & E).