Amentum Services Executive and Leadership Team

July, 2026

Leadership Overview

Amentum has 10 executives leading key functions including operations, technology, finance, and marketing.

Driven by undaunted curiosity, Amentum Services addresses significant global challenges in science, security, and sustainability through advanced engineering and innovative technology solutions.

Leadership Roles at Amentum Services

  • Group Chief Financial Officer & Senior VP, Finance - Paul Pheeny
  • Chief Operating Officer - Stephen Arnette
  • Chief Operating Officer, Hsetraining Development - Monica Ingle
  • Chief Information Officer - Scott Schuetz
  • Chief Technology Officer - Mike. Regan
  • Senior Vice President, Chief of Staff - Joseph Ruffolo
  • Vice President and Chief Technology Officer - Intelligence and Cyber - Adi Karisik
  • Chief Marketing Officer, Trianer - Gregory Owens
  • Enterprise IT Chief of Staff - Martin Wohlgemuth
  • IT Chief Information Officer & Vice President - Joe Walker
  • Paul Pheeny - Group Chief Financial Officer & Senior VP, Finance

    Paul Pheeny, the Group Chief Financial Officer & Senior VP, Finance at Amentum Services, directs the company's financial strategy and fiscal operations, ensuring robust economic health and sustainable growth. Pheeny oversees all financial planning, reporting, and investment activities, supporting Amentum's global endeavors in science, security, and sustainability. This critical leadership position involves managing financial risks, optimizing capital allocation, and driving profitability across diverse projects. The Group Chief Financial Officer & Senior VP, Finance's expertise is essential for maintaining investor confidence and enabling the company's ambitious expansion plans. Paul Pheeny's financial acumen underpins Amentum's ability to undertake large-scale, complex challenges while upholding its core commitments.

    Stephen Arnette - Chief Operating Officer

    Stephen Arnette, the Chief Operating Officer at Amentum Services, directs the company's extensive operational framework, ensuring seamless execution of complex projects across science, security, and sustainability sectors. Arnette oversees the integration of advanced engineering and technology solutions, aligning daily operations with Amentum's core mission to address critical challenges for the United States and its allies. This leadership involves optimizing resource allocation and driving efficiency across global project sites, directly supporting the company's commitment to safety, collaboration, and well-being. The Chief Operating Officer's strategic focus ensures that Amentum consistently delivers on its promises, maintaining a high standard of performance and innovation. Stephen Arnette's role is pivotal in translating strategic objectives into tangible operational success, reinforcing Amentum's position as a trusted partner in demanding environments.
    Stephen Arnette

    Monica Ingle - Chief Operating Officer, Hsetraining Development

    Monica Ingle, the Chief Operating Officer, Hsetraining Development at Amentum Services, directs the strategic development and operational delivery of health, safety, environmental, and training programs. Ingle ensures these critical functions align with Amentum's overarching mission and commitment to well-being across all operations. This leadership position involves overseeing the creation and implementation of robust training modules and safety protocols that meet rigorous industry standards. The Chief Operating Officer, Hsetraining Development's focus on excellence in HSE and training is fundamental to fostering a safe and compliant work environment. Monica Ingle's dedication drives Amentum's ability to maintain the highest standards of operational integrity and employee welfare.

    Scott Schuetz - Chief Information Officer

    Scott Schuetz, the Chief Information Officer at Amentum Services, architects the company's comprehensive information technology strategy, safeguarding critical data and enhancing digital infrastructure. Schuetz drives the implementation of advanced technological solutions that support Amentum's global operations in science, security, and sustainability. This leadership role involves ensuring robust cybersecurity measures and optimizing IT systems to facilitate seamless collaboration among teams and stakeholders. The Chief Information Officer's efforts are crucial for maintaining operational continuity and enabling data-driven decision-making across the organization. By focusing on innovation and reliability, Scott Schuetz ensures that Amentum's technological backbone is resilient and capable of supporting the company's ambitious goals and complex project requirements.
    Scott Schuetz

    Mike. Regan - Chief Technology Officer

    Mike. Regan, the Chief Technology Officer at Amentum Services, spearheads the company's technological innovation and development initiatives, driving advancements in science, security, and sustainability solutions. Regan guides the exploration and adoption of cutting-edge technologies that enhance Amentum's engineering capabilities and address complex client challenges. This executive position involves fostering a culture of relentless ambition and boundless imagination, pushing the boundaries of what is possible. The Chief Technology Officer's vision is critical for maintaining Amentum's competitive edge and ensuring its offerings remain at the forefront of the industry. Through strategic technological leadership, Mike. Regan ensures Amentum consistently delivers transformative solutions that meet the evolving needs of its global clientele.

    Joseph Ruffolo - Senior Vice President, Chief of Staff

    Joseph Ruffolo, the Senior Vice President, Chief of Staff at Amentum Services, provides strategic support and operational oversight, ensuring alignment across key business functions. Ruffolo facilitates communication and collaboration between executive leadership and various departments, driving the execution of Amentum's mission in science, security, and sustainability. This role involves managing critical initiatives and ensuring that the company's commitments to safety, collaboration, and well-being are integrated into all operational aspects. The Senior Vice President, Chief of Staff's influence extends to optimizing organizational efficiency and supporting the strategic direction set by the executive team. Joseph Ruffolo plays a vital part in translating high-level objectives into actionable plans, reinforcing Amentum's capacity to tackle complex global challenges.

    Adi Karisik - Vice President and Chief Technology Officer - Intelligence and Cyber

    Adi Karisik, the Vice President and Chief Technology Officer - Intelligence and Cyber at Amentum Services, leads the strategic development and implementation of advanced technology solutions within the intelligence and cybersecurity domains. Karisik focuses on pioneering innovations that bolster national security and address sophisticated cyber threats for Amentum's clients. This specialized leadership role involves guiding research and development efforts, ensuring Amentum remains at the cutting edge of cyber defense and intelligence gathering technologies. The Vice President and Chief Technology Officer - Intelligence and Cyber's work is fundamental to protecting critical infrastructure and sensitive information. Adi Karisik's technical expertise drives Amentum's capability to provide unparalleled security and intelligence services.

    Gregory Owens - Chief Marketing Officer, Trianer

    Gregory Owens, the Chief Marketing Officer, Trianer at Amentum Services, shapes and executes the company's comprehensive marketing and brand strategy, enhancing Amentum's market presence and client engagement. Owens directs initiatives that communicate the value of Amentum's advanced engineering and technology solutions across science, security, and sustainability sectors. This executive role involves identifying market opportunities, developing compelling messaging, and fostering strong relationships with stakeholders. The Chief Marketing Officer, Trianer's leadership ensures Amentum's innovative capabilities and commitment to addressing complex challenges are effectively conveyed. Gregory Owens plays a key part in driving business development and reinforcing Amentum's reputation as a trusted global leader.

    Martin Wohlgemuth - Enterprise IT Chief of Staff

    Martin Wohlgemuth, the Enterprise IT Chief of Staff at Amentum Services, provides critical strategic and operational support to the IT leadership, ensuring efficient execution of technology initiatives. Wohlgemuth facilitates alignment between IT operations and Amentum's broader business objectives, particularly in science, security, and sustainability. This role involves streamlining processes, managing key projects, and enhancing communication across the IT department and with other business units. The Enterprise IT Chief of Staff's focus on operational excellence supports the company's commitment to innovation and reliable service delivery. Martin Wohlgemuth's contributions are vital for optimizing the performance and impact of Amentum's enterprise IT infrastructure.

    Joe Walker - IT Chief Information Officer & Vice President

    Joe Walker, the IT Chief Information Officer & Vice President at Amentum Services, oversees the strategic direction and operational management of the company's information technology infrastructure and services. Walker drives the integration of advanced IT solutions to support Amentum's global operations in science, security, and sustainability, ensuring data integrity and system reliability. This executive role involves leading technological advancements that enhance efficiency, collaboration, and cybersecurity across the organization. The IT Chief Information Officer & Vice President's vision is crucial for maintaining Amentum's technological competitiveness and supporting its complex project requirements. Joe Walker's leadership ensures Amentum's IT systems are robust, secure, and aligned with its mission to address significant global challenges.

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    Frequently Asked Questions Regarding Amentum Services Top Executives and Leadership Team

    Who leads Amentum Services?
    Amentum Services is led by Paul Pheeny (Group Chief Financial Officer & Senior VP, Finance), along with executives such as Stephen Arnette (Chief Operating Officer) and Monica Ingle (Chief Operating Officer, Hsetraining Development).
    Who is part of Amentum Services’s executive team?
    The executive team of Amentum Services includes leaders such as Paul Pheeny (Group Chief Financial Officer & Senior VP, Finance), Stephen Arnette (Chief Operating Officer), Monica Ingle (Chief Operating Officer, Hsetraining Development) and other senior executives.
    How many executives does Amentum Services have?
    Amentum Services has 10 executives leading key business areas.
    What roles are included in Amentum Services’s leadership team?
    The leadership team of Amentum Services includes roles such as Group Chief Financial Officer & Senior VP, Finance, Chief Operating Officer, Chief Operating Officer, Hsetraining Development, Chief Information Officer, Chief Technology Officer.