ASML Executive and Leadership Team

August, 2026

Leadership Overview

ASML has 4 executives leading key functions including extreme ultraviolet technology development, strategic project management, human resources operations, and holistic metrology integration.

Focused on advancing semiconductor manufacturing through precision engineering, ASML drives the global digital transformation by enabling the production of increasingly powerful microprocessors and memory chips.

Leadership Roles at ASML

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

    David Tamayo, the Euv D & E Chief of Staff (SAN Diego) at ASML, manages the operational cadence for extreme ultraviolet development teams. Tamayo coordinates complex research workflows to ensure the successful deployment of lithography systems across North American facilities. By aligning engineering milestones with global production schedules, the Chief of Staff (SAN Diego) optimizes resource allocation for critical nanometer-scale projects. This leadership role involves bridging communication gaps between technical research units and corporate strategy departments to maintain the competitive edge of the company in the semiconductor market. David Tamayo facilitates high-level decision-making processes that accelerate the development of next-generation EUV machines. Through rigorous oversight of project timelines, the Chief of Staff (SAN Diego) supports the overarching mission of pushing the boundaries of Moore's Law while ensuring that technical teams meet stringent quality standards for global chipmakers.

    Ying Huang - Strategic Project Management Office Chief of Staff

    Ying Huang, the Strategic Project Management Office Chief of Staff at ASML, directs the execution of high-priority corporate initiatives. Huang oversees the integration of cross-functional project management frameworks to streamline the delivery of advanced lithography equipment. By monitoring key performance indicators across global operations, the Strategic Project Management Office Chief of Staff ensures that internal processes remain agile and responsive to market demands. This role requires constant collaboration with executive leadership to refine operational strategies and improve efficiency in the semiconductor supply chain. Ying Huang drives the implementation of standardized project methodologies that enhance the overall output of the company. Through the systematic evaluation of project risks and opportunities, the Strategic Project Management Office Chief of Staff secures the long-term stability of the organization, enabling the company to maintain its unique position as the sole provider of EUV technology for the global technology ecosystem.

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

    Kellie Fasching, the HR & Project Management Office Chief of Staff (US) at ASML, manages the intersection of human capital development and operational project delivery. Fasching aligns workforce planning with the technical requirements of the US-based manufacturing and support teams. By overseeing talent acquisition strategies and project management protocols, the HR & Project Management Office Chief of Staff (US) ensures that the company possesses the necessary expertise to maintain complex lithography systems. This leadership position involves fostering a culture of innovation while maintaining strict adherence to operational timelines. Kellie Fasching facilitates communication between regional HR departments and project leads to optimize team performance across North American operations. Through the strategic management of personnel and project resources, the HR & Project Management Office Chief of Staff (US) supports the company in its mission to provide comprehensive services, including installation and technical support, to major semiconductor manufacturers worldwide.

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

    Stephanie Buitendijk, the Chief of Staff (Hmi D & E) at ASML, coordinates the development and engineering efforts for holistic metrology and inspection systems. Buitendijk manages the operational alignment of research teams focused on enhancing the precision of circuit pattern projection. By overseeing the integration of metrology data into the broader lithography workflow, the Chief of Staff (Hmi D & E) ensures that chipmakers achieve the highest levels of accuracy during the manufacturing process. This role involves managing complex interdependencies between engineering departments to accelerate the production of cutting-edge semiconductor nodes. Stephanie Buitendijk facilitates strategic planning sessions that prioritize technical breakthroughs in inspection technology. Through the rigorous oversight of development cycles, the Chief of Staff (Hmi D & E) supports the company in its goal to enable the next generation of electronic devices, ensuring that the organization remains at the forefront of the global semiconductor industry.

    Explore Leadership Teams in Electronics

    Frequently Asked Questions Regarding ASML Top Executives and Leadership Team

    Who leads ASML?
    ASML is led by David Tamayo (Euv D & E Chief of Staff (SAN Diego)), along with executives such as Ying Huang (Strategic Project Management Office Chief of Staff) 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 David Tamayo (Euv D & E Chief of Staff (SAN Diego)), Ying Huang (Strategic Project Management Office Chief of Staff), 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 Euv D & E Chief of Staff (SAN Diego), Strategic Project Management Office Chief of Staff, HR & Project Management Office Chief of Staff (US), Chief of Staff (Hmi D & E).