Excelitas Executive and Leadership Team

July, 2026

Leadership Overview

Excelitas has 6 executives leading key functions including strategy, finance, human resources, and administration.

Driven by innovation, Excelitas delivers advanced, customized solutions in lighting, detection, and high-performance technologies, enabling progress across medical, industrial, aerospace, and defense sectors worldwide.

Leadership Roles at Excelitas

  • Chief Executive Officer - David Nislick
  • President, Chief Executive Officer & Board Member - Ronald Keating
  • Advanced Industrial Segment Senior VP & Chief Financial Officer - Johan Werf
  • Senior Vice President and Chief Financial Officer Life Sciences and Semiconductor Segment - Adam Beeh
  • Vice President, Human Resources & Chief Human Resources Officer - Stephane Dionne
  • Executive Vice President & Chief Administrative Officer - James Kohosek
  • David Nislick - Chief Executive Officer

    David Nislick, the Chief Executive Officer at Excelitas, directs the company's overarching strategy and operational execution. Nislick guides the organization's mission to deliver advanced, customized solutions in lighting, detection, and high-performance technologies. This leadership ensures Excelitas effectively serves OEM customers across critical industries such as medical, analytical instrumentation, diagnostics, industrial, safety, aerospace, and defense. The focus remains on enabling innovation and driving growth through strategic initiatives and market expansion. Nislick's direction supports the integration of acquired capabilities, enhancing the company's global reach and technological prowess. The Chief Executive Officer's role is central to maintaining Excelitas's position as a leader in its specialized markets, fostering a culture of excellence and customer-centricity. David Nislick ensures the company's long-term vision translates into tangible business outcomes and sustained market leadership.

    Ronald Keating - President, Chief Executive Officer & Board Member

    Ronald Keating, the President, Chief Executive Officer & Board Member at Excelitas, spearheads the company's strategic direction and governance. Keating drives the vision for delivering advanced, customized solutions in lighting, detection, and high-performance technologies to OEM customers. This leadership ensures Excelitas effectively supports innovation across vital sectors including medical, analytical instrumentation, diagnostics, industrial, safety, aerospace, and defense. The President, Chief Executive Officer & Board Member's oversight extends to global operations, leveraging strategic acquisitions like Qioptiq and Lumen Dynamics to expand capabilities. Keating's role involves fostering strong relationships with the Board and ensuring alignment with corporate objectives. Ronald Keating's influence is critical in navigating complex market dynamics and positioning Excelitas for sustained growth and technological advancement. The President, Chief Executive Officer & Board Member ensures the company's mission of enabling innovation is consistently met across its worldwide operations.
    Ronald Keating

    Johan Werf - Advanced Industrial Segment Senior VP & Chief Financial Officer

    Johan Werf, the Advanced Industrial Segment Senior VP & Chief Financial Officer at Excelitas, directs financial strategy and operational performance for the industrial sector. Werf oversees fiscal management, ensuring robust financial health and driving profitability for Excelitas's advanced lighting, detection, and high-performance technology solutions. The Advanced Industrial Segment Senior VP & Chief Financial Officer's responsibilities include financial planning, analysis, and resource allocation to support innovation in industries such as manufacturing and safety. This role is crucial for optimizing financial operations and supporting strategic growth initiatives, including those stemming from acquisitions. Johan Werf's financial acumen guides investment decisions and ensures efficient deployment of capital across global markets. The Advanced Industrial Segment Senior VP & Chief Financial Officer's leadership ensures financial discipline and supports the company's commitment to delivering customized solutions to OEM customers worldwide.

    Adam Beeh - Senior Vice President and Chief Financial Officer Life Sciences and Semiconductor Segment

    Adam Beeh, the Senior Vice President and Chief Financial Officer Life Sciences and Semiconductor Segment at Excelitas, leads financial operations for critical high-growth sectors. Beeh manages financial planning, reporting, and strategic fiscal management for the life sciences and semiconductor markets. The Senior Vice President and Chief Financial Officer Life Sciences and Semiconductor Segment ensures financial resources are effectively allocated to support the development and delivery of advanced lighting, detection, and high-performance technologies. This leadership role is pivotal in driving financial performance and enabling innovation within these specialized industries. Adam Beeh's expertise supports Excelitas's mission to provide customized solutions to OEM customers, fostering sustainable growth and operational excellence. The Senior Vice President and Chief Financial Officer Life Sciences and Semiconductor Segment's financial oversight is integral to the company's global strategy and market competitiveness.

    Stephane Dionne - Vice President, Human Resources & Chief Human Resources Officer

    Stephane Dionne, the Vice President, Human Resources & Chief Human Resources Officer at Excelitas, manages all aspects of human capital strategy and execution. Dionne oversees talent acquisition, development, and retention initiatives critical for supporting Excelitas's global operations and technological innovation. The Vice President, Human Resources & Chief Human Resources Officer ensures the workforce is equipped to deliver advanced solutions in lighting, detection, and high-performance technologies across diverse industries like medical, industrial, and aerospace. This leadership role focuses on cultivating a high-performance culture that aligns with the company's mission and values. Stephane Dionne drives programs that enhance employee engagement and foster professional growth, directly impacting the company's ability to serve OEM customers effectively. The Vice President, Human Resources & Chief Human Resources Officer's strategic input is vital for integrating acquired teams and maintaining operational synergy across North America, Europe, and Asia.

    James Kohosek - Executive Vice President & Chief Administrative Officer

    James Kohosek, the Executive Vice President & Chief Administrative Officer at Excelitas, oversees critical administrative functions and operational support across the organization. Kohosek ensures the efficient management of resources and infrastructure necessary for Excelitas to deliver advanced, customized solutions in lighting, detection, and high-performance technologies. The Executive Vice President & Chief Administrative Officer's responsibilities encompass a broad range of operational areas, supporting OEM customers in industries such as medical, industrial, aerospace, and defense. This leadership role is vital for maintaining operational continuity and facilitating strategic initiatives, including global expansion and the integration of acquired entities. James Kohosek's focus on administrative excellence supports the company's mission of enabling innovation and driving market leadership. The Executive Vice President & Chief Administrative Officer ensures seamless operations across North America, Europe, and Asia, reinforcing Excelitas's global presence and commitment to customer success.
    James Kohosek

    Explore Leadership Teams in Manufacturing

    Frequently Asked Questions Regarding Excelitas Top Executives and Leadership Team

    Who leads Excelitas?
    Excelitas is led by David Nislick (Chief Executive Officer), along with executives such as Ronald Keating (President, Chief Executive Officer & Board Member) and Johan Werf (Advanced Industrial Segment Senior VP & Chief Financial Officer).
    Who is part of Excelitas’s executive team?
    The executive team of Excelitas includes leaders such as David Nislick (Chief Executive Officer), Ronald Keating (President, Chief Executive Officer & Board Member), Johan Werf (Advanced Industrial Segment Senior VP & Chief Financial Officer) and other senior executives.
    How many executives does Excelitas have?
    Excelitas has 6 executives leading key business areas.
    What roles are included in Excelitas’s leadership team?
    The leadership team of Excelitas includes roles such as Chief Executive Officer, President, Chief Executive Officer & Board Member, Advanced Industrial Segment Senior VP & Chief Financial Officer, Senior Vice President and Chief Financial Officer Life Sciences and Semiconductor Segment, Vice President, Human Resources & Chief Human Resources Officer.