ASML Executive and Leadership Team

July, 2026

Leadership Overview

ASML has 5 executives leading key functions including field operations, strategic project management, engineering, human resources, and project management.

Driven by continuous innovation, ASML is dedicated to advancing semiconductor manufacturing technology, enabling the creation of faster, smaller, and more powerful microprocessors and memory chips essential for global digital transformation.

Leadership Roles at ASML

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

    Joyce Cornelis, the Cs Field Operations Chief of Staff (US) at ASML, directs critical operational functions across the United States. This leadership role ensures the seamless execution of field operations, directly supporting ASML's mission to supply advanced photolithography systems to global chipmakers. Cornelis oversees the strategic alignment of field service teams, guaranteeing efficient installation, maintenance, and upgrades of sophisticated lithography machines. The scope of this position involves optimizing resource allocation and enhancing service delivery to meet the demanding needs of semiconductor manufacturing clients. By focusing on operational excellence within the US market, Joyce Cornelis drives the company's ability to maintain its unique position as the sole provider of EUV lithography systems, crucial for producing cutting-edge semiconductor nodes. This executive's efforts directly contribute to enabling the next generation of electronic devices and advancing artificial intelligence and high-performance computing applications.

    Ying Huang - Strategic Project Management Office Chief of Staff

    Ying Huang, the Strategic Project Management Office Chief of Staff at ASML, architects and executes high-impact strategic initiatives. This role is central to driving ASML's continuous innovation and substantial investment in research and development, ensuring alignment with the company's overarching goals. Huang oversees the strategic planning and implementation of complex projects that push the boundaries of semiconductor manufacturing technology. The responsibilities include fostering collaboration between chipmakers, research institutions, and suppliers across the semiconductor supply chain. By managing critical project portfolios, Ying Huang ensures that ASML's groundbreaking EUV lithography technology and deep ultraviolet systems are developed and deployed effectively. This executive's leadership is vital for maintaining ASML's position as the world's leading supplier of advanced photolithography equipment, directly enabling the production of increasingly smaller, faster, and more powerful microprocessors and memory chips for global digital transformation.

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

    David Tamayo, the Euv D & E Chief of Staff (SAN Diego) at ASML, spearheads critical engineering and development efforts for extreme ultraviolet lithography systems. This executive role is pivotal in advancing ASML's revolutionary EUV technology, which is essential for producing the most advanced semiconductor nodes. Tamayo directs the strategic operations within the San Diego engineering hub, ensuring seamless integration of design, development, and testing processes. The focus involves optimizing the complex workflows required for these highly sophisticated machines, enabling chipmakers to produce cutting-edge microprocessors and memory chips. By driving innovation in EUV D&E, David Tamayo directly supports ASML's commitment to pushing the boundaries of Moore's Law. This leadership ensures the continued supply of essential equipment for applications in artificial intelligence, high-performance computing, and next-generation digital technologies, reinforcing ASML's unique market position.

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

    Stephanie Buitendijk, the Chief of Staff (Hmi D & E) at ASML, drives strategic initiatives within Human Machine Interface (HMI) Design and Engineering. This executive position is crucial for enhancing the usability and effectiveness of ASML's highly sophisticated lithography systems. Buitendijk oversees the integration of user-centric design principles into the development of advanced photolithography equipment, ensuring seamless interaction for chip manufacturing clients. The role involves fostering collaboration between engineering teams and product development, translating complex technical requirements into intuitive operational interfaces. By focusing on HMI D&E, Stephanie Buitendijk directly contributes to ASML's mission of enabling chipmakers to produce increasingly smaller, faster, and more powerful microprocessors and memory chips. This leadership ensures that ASML's groundbreaking technology is not only powerful but also accessible and efficient for its global customer base.

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

    Kellie Fasching, the HR & Project Management Office Chief of Staff (US) at ASML, leads integrated human resources and project management functions across the United States. This executive role is vital for aligning ASML's talent strategy with its ambitious project execution goals, supporting the company's position as a leader in semiconductor manufacturing equipment. Fasching oversees the development and implementation of HR initiatives that attract, retain, and develop the specialized talent required for designing and producing advanced lithography systems. Concurrently, Kellie Fasching directs the strategic oversight of project management offices, ensuring efficient resource allocation and timely delivery of critical projects. By integrating HR and PMO functions, this executive strengthens ASML's operational capacity, directly contributing to the company's ability to innovate and supply essential technology for global chipmakers and digital transformation.

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    Frequently Asked Questions Regarding ASML Top Executives and Leadership Team

    Who leads ASML?
    ASML is led by Joyce Cornelis (Cs Field Operations Chief of Staff (US)), along with executives such as Ying Huang (Strategic Project Management Office Chief of Staff) and David Tamayo (Euv D & E Chief of Staff (SAN Diego)).
    Who is part of ASML’s executive team?
    The executive team of ASML includes leaders such as Joyce Cornelis (Cs Field Operations Chief of Staff (US)), Ying Huang (Strategic Project Management Office Chief of Staff), David Tamayo (Euv D & E Chief of Staff (SAN Diego)) and other senior executives.
    How many executives does ASML have?
    ASML has 5 executives leading key business areas.
    What roles are included in ASML’s leadership team?
    The leadership team of ASML includes roles such as Cs Field Operations Chief of Staff (US), Strategic Project Management Office Chief of Staff, Euv D & E Chief of Staff (SAN Diego), Chief of Staff (Hmi D & E), HR & Project Management Office Chief of Staff (US).