BAE Systems Executive and Leadership Team

September, 2026

Leadership Overview

BAE Systems has 10 executives leading key functions including strategy, operations, finance, technology, and human resources.

Focused on delivering advanced aerospace and defense solutions, BAE Systems maintains a commitment to engineering excellence and global security. This leadership team drives innovation across complex international programs to address critical defense challenges.

Leadership Roles at BAE Systems

  • President & Chief Executive Officer - Tom Arseneault
  • Chief Financial Officer - Laila Groves
  • Chief Operating Officer - Darren Kirkby
  • Chief of Staff - Kathleen Flath
  • Chief Technology Officer, Intelligence Solutions - Donald Widener
  • Executive Assistant To Chief Human Resources Officer - Alison Murafsky
  • Chief of Staff To Gabby Costigan, Group Managing Director, Group Business Development - Charlotte Mosley
  • Director of Executive Operations and Chief of Staff - Gretchen Koeck
  • Chief Technology Officer, Modeling & Simulation Solutions, Bae Systems - Nandish Mattikalli
  • Defense Software Chief of Staff (US) - Chad Ohira
  • Tom Arseneault - President & Chief Executive Officer

    Tom Arseneault, the President & Chief Executive Officer at BAE Systems, directs the overarching strategic vision for the multinational aerospace and defense organization. Overseeing the entire portfolio of military aircraft, naval platforms, and electronic solutions, the President & Chief Executive Officer ensures alignment between engineering capabilities and government requirements. This leadership role involves managing complex international programs while maintaining a focus on long-term product lifecycle support. By optimizing operational efficiency across global markets, Tom Arseneault directly impacts the company's ability to address evolving security challenges. The President & Chief Executive Officer coordinates with the board to drive sustainable growth and technological advancement. Through rigorous oversight of defense and security initiatives, Arseneault secures the competitive position of the firm within the global landscape, ensuring that all business units contribute effectively to the mission of providing advanced technologies to commercial and government customers worldwide.
    Tom Arseneault

    Laila Groves - Chief Financial Officer

    Laila Groves, the Chief Financial Officer at BAE Systems, directs the financial strategy and capital allocation for the multinational aerospace and defense firm. Overseeing fiscal planning, risk management, and investor relations, the Chief Financial Officer ensures that the company maintains the financial health necessary to support long-term innovation and engineering projects. This leadership role involves analyzing market trends to guide investment in military aircraft, naval platforms, and electronic solutions. By managing the financial aspects of major international programs, Laila Groves directly impacts the company's ability to deliver value to shareholders and customers. The Chief Financial Officer collaborates with other executives to align budgetary resources with strategic growth objectives across global markets. Through the rigorous oversight of financial performance and compliance, Groves secures the stability of the organization, enabling the continued development of advanced technologies that address complex security challenges for government and commercial clients worldwide.
    Laila Groves

    Darren Kirkby - Chief Operating Officer

    Darren Kirkby, the Chief Operating Officer at BAE Systems, manages the execution of large-scale manufacturing and service delivery across the global defense portfolio. Overseeing the production of land systems, naval platforms, and weapons, the Chief Operating Officer ensures that engineering capabilities meet the rigorous demands of international government customers. This leadership role involves optimizing supply chains and operational workflows to maintain high standards of quality and safety. By driving efficiency in the development of electronic and cyber solutions, Darren Kirkby directly impacts the company's ability to deliver integrated systems on time and within budget. The Chief Operating Officer coordinates with regional leads to ensure that operational strategies support the firm's presence in key global markets. Through the implementation of advanced manufacturing processes, Kirkby enhances the overall capacity of the organization to address complex security challenges, ensuring that the company remains a leader in the aerospace and defense sector.
    Darren Kirkby

    Kathleen Flath - Chief of Staff

    Kathleen Flath, the Chief of Staff at BAE Systems, manages the administrative and strategic priorities of the executive office. Coordinating cross-functional communication, the Chief of Staff ensures that leadership initiatives align with the broader goals of the aerospace and defense portfolio. This role involves facilitating decision-making processes and streamlining operations to support the delivery of advanced security solutions. By managing internal workflows and executive communications, Kathleen Flath enables the leadership team to focus on high-impact defense programs and international market expansion. The Chief of Staff monitors progress on key corporate objectives, ensuring that resources remain allocated toward innovation and engineering excellence. Through the maintenance of organizational cohesion, Flath supports the execution of complex projects across the global enterprise. This position requires constant interaction with senior management to refine operational strategies, ultimately driving the efficiency and effectiveness of the company in addressing critical security challenges for government and commercial clients.

    Donald Widener - Chief Technology Officer, Intelligence Solutions

    Donald Widener, the Chief Technology Officer, Intelligence Solutions at BAE Systems, architects the technological roadmap for the company's cyber and intelligence-focused defense offerings. Overseeing the development of advanced electronic solutions, the Chief Technology Officer, Intelligence Solutions ensures that the firm remains at the forefront of security innovation. This leadership role involves integrating cutting-edge software and data capabilities into the broader portfolio of military and security products. By driving research and development initiatives, Donald Widener directly impacts the company's ability to provide actionable intelligence to government customers. The Chief Technology Officer, Intelligence Solutions coordinates with engineering teams to translate complex security requirements into scalable technological platforms. Through the application of advanced engineering capabilities, Widener supports the firm's mission to address evolving threats in the digital domain, ensuring that the organization maintains a competitive edge in the global intelligence and security market.
    Donald Widener

    Alison Murafsky - Executive Assistant To Chief Human Resources Officer

    Alison Murafsky, the Executive Assistant To Chief Human Resources Officer at BAE Systems, manages the operational priorities and administrative functions of the human resources department. Coordinating talent management initiatives and organizational development programs, the Executive Assistant To Chief Human Resources Officer ensures that the workforce remains aligned with the company's mission in aerospace and defense. This role involves facilitating communication between HR leadership and other departments to support the recruitment and retention of top engineering talent. By streamlining internal processes, Alison Murafsky enables the HR function to focus on building the capabilities required to deliver advanced security solutions. The Executive Assistant To Chief Human Resources Officer monitors key personnel metrics and supports the implementation of corporate culture initiatives. Through the effective management of executive workflows, Murafsky contributes to the overall operational success of the firm, ensuring that the organization possesses the human capital necessary to address complex security challenges.

    Charlotte Mosley - Chief of Staff To Gabby Costigan, Group Managing Director, Group Business Development

    Charlotte Mosley, the Chief of Staff To Gabby Costigan, Group Managing Director, Group Business Development at BAE Systems, manages the strategic business development agenda for the global organization. Coordinating efforts to expand the company's footprint in international markets, the Chief of Staff To Gabby Costigan, Group Managing Director, Group Business Development ensures that growth initiatives align with the firm's aerospace and defense portfolio. This role involves facilitating high-level partnerships and identifying new opportunities for military and security technology deployment. By managing the flow of information and strategic priorities, Charlotte Mosley enables the business development team to effectively engage with government and commercial customers. The Chief of Staff To Gabby Costigan, Group Managing Director, Group Business Development monitors market trends and supports the execution of long-term commercial strategies. Through the coordination of cross-functional teams, Mosley drives the expansion of the company's global reach, ensuring that the organization remains a leader in providing integrated security solutions.

    Gretchen Koeck - Director of Executive Operations and Chief of Staff

    Gretchen Koeck, the Director of Executive Operations and Chief of Staff at BAE Systems, oversees the operational efficiency of the executive leadership team. Coordinating the implementation of corporate strategy, the Director of Executive Operations and Chief of Staff ensures that all departments remain focused on the delivery of advanced aerospace and defense technologies. This role involves managing complex projects that span multiple business units, from naval platforms to electronic solutions. By optimizing executive workflows and communication, Gretchen Koeck enables the leadership team to address critical security challenges with agility. The Director of Executive Operations and Chief of Staff monitors the progress of key initiatives and ensures that resources are aligned with the company's long-term goals. Through the management of internal operations, Koeck supports the firm's commitment to engineering excellence, ensuring that the organization maintains its position as a trusted provider of security solutions to government and commercial customers worldwide.

    Nandish Mattikalli - Chief Technology Officer, Modeling & Simulation Solutions, Bae Systems

    Nandish Mattikalli, the Chief Technology Officer, Modeling & Simulation Solutions, Bae Systems at BAE Systems, directs the development of advanced simulation technologies used to test and refine defense platforms. Overseeing the creation of virtual environments for military aircraft and land systems, the Chief Technology Officer, Modeling & Simulation Solutions, Bae Systems ensures that engineering teams can validate complex solutions before deployment. This leadership role involves integrating data-driven modeling into the product lifecycle to enhance performance and safety. By driving innovation in simulation software, Nandish Mattikalli directly impacts the company's ability to deliver reliable and effective security technologies. The Chief Technology Officer, Modeling & Simulation Solutions, Bae Systems collaborates with other technical leads to ensure that simulation capabilities support the broader mission of the firm. Through the application of advanced modeling techniques, Mattikalli enables the organization to address complex security challenges with precision, maintaining the company's reputation for engineering excellence.

    Chad Ohira - Defense Software Chief of Staff (US)

    Chad Ohira, the Defense Software Chief of Staff (US) at BAE Systems, manages the operational and strategic priorities for the software development division within the North American market. Coordinating the efforts of engineering teams focused on cyber and electronic solutions, the Defense Software Chief of Staff (US) ensures that software initiatives align with the broader defense mission. This role involves streamlining development processes to accelerate the delivery of secure, high-performance software for government customers. By managing internal resources and cross-functional communication, Chad Ohira directly impacts the company's ability to address complex security challenges in the digital domain. The Defense Software Chief of Staff (US) monitors project milestones and supports the integration of software capabilities into the firm's wider portfolio of military platforms. Through the effective management of software operations, Ohira contributes to the company's technological leadership, ensuring that the organization remains at the forefront of defense innovation.

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    Frequently Asked Questions Regarding BAE Systems Top Executives and Leadership Team

    Who leads BAE Systems?
    BAE Systems is led by Tom Arseneault (President & Chief Executive Officer), along with executives such as Laila Groves (Chief Financial Officer) and Darren Kirkby (Chief Operating Officer).
    Who is part of BAE Systems’s executive team?
    The executive team of BAE Systems includes leaders such as Tom Arseneault (President & Chief Executive Officer), Laila Groves (Chief Financial Officer), Darren Kirkby (Chief Operating Officer) and other senior executives.
    How many executives does BAE Systems have?
    BAE Systems has 10 executives leading key business areas.
    What roles are included in BAE Systems’s leadership team?
    The leadership team of BAE Systems includes roles such as President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Chief of Staff, Chief Technology Officer, Intelligence Solutions.