US Cyber Command Executive and Leadership Team

July, 2026

Leadership Overview

US Cyber Command has 7 executives leading key functions including strategy, acquisition, operations, and technology.

Driven by a mission to defend national interests in cyberspace, US Cyber Command provides the Department of Defense with essential cyberspace capabilities and robust support for cyber operations, solidifying its critical role in national security.

Leadership Roles at US Cyber Command

  • Chief of Staff - Ken Paul
  • J9, Acquisition & Technology Diectorate Chief of Staff - Katrina Streeter
  • Deputy Chief of Staff - Joe Gelineau
  • Division Deputy Chief of Staff, Operations - Stephanie Gustafson
  • Cyber Command Chief of Staff (US) - Maj Gen Bradley L. Pyburn
  • J5 Deputy Chief of Staff - Sheri Fleming
  • Chief Operations Officer - Christopher Assi
  • Ken Paul - Chief of Staff

    Ken Paul, the Chief of Staff at US Cyber Command, directs the strategic alignment of all staff functions, ensuring seamless execution of the command's mission. Paul oversees the coordination of operational planning and resource allocation, critical for maintaining the Department of Defense's cyberspace capabilities. This leadership position involves managing inter-agency communications and fostering collaboration to enhance cyber defense strategies. By optimizing internal processes, Ken Paul ensures the command operates with maximum efficiency and readiness. The role demands a comprehensive understanding of cyber operations and their integration into broader military objectives, directly supporting the command's mandate to provide cyberspace capabilities.

    Katrina Streeter - J9, Acquisition & Technology Diectorate Chief of Staff

    Katrina Streeter, the J9, Acquisition & Technology Diectorate Chief of Staff at US Cyber Command, spearheads the acquisition and technological advancement initiatives essential for modern cyber operations. Streeter manages the integration of cutting-edge technologies and ensures that acquisition processes align with the evolving threat landscape. This role is pivotal in equipping the command with superior cyber capabilities, directly supporting the Department of Defense's mission. Katrina Streeter drives innovation within the directorate, focusing on developing and procuring advanced tools and systems. The strategic oversight provided by Streeter ensures US Cyber Command maintains a technological edge in cyberspace defense.

    Joe Gelineau - Deputy Chief of Staff

    Joe Gelineau, the Deputy Chief of Staff at US Cyber Command, supports the Chief of Staff in overseeing the command's comprehensive operational framework. Gelineau focuses on enhancing the efficiency and effectiveness of cyber operations, ensuring the Department of Defense receives critical cyberspace capabilities. This leadership function involves managing day-to-day activities and implementing strategic directives across various departments. Joe Gelineau plays a key part in coordinating responses to cyber threats and bolstering the command's readiness. The role requires a deep understanding of military cyber doctrine and its practical application in safeguarding national interests.

    Stephanie Gustafson - Division Deputy Chief of Staff, Operations

    Stephanie Gustafson, the Division Deputy Chief of Staff, Operations at US Cyber Command, directs operational execution and tactical deployment of cyberspace capabilities. Gustafson ensures that all operational units are prepared and effectively utilized to meet the Department of Defense's cyber mission requirements. This critical role involves overseeing the planning and implementation of complex cyber operations, directly contributing to national security. Stephanie Gustafson focuses on optimizing operational tempo and ensuring seamless coordination between different divisions. The leadership provided by Gustafson is essential for maintaining US Cyber Command's effectiveness in the cyberspace domain.

    Maj Gen Bradley L. Pyburn - Cyber Command Chief of Staff (US)

    Maj Gen Bradley L. Pyburn, the Cyber Command Chief of Staff (US) at US Cyber Command, provides executive leadership for the command's strategic operations and administrative functions. Pyburn ensures the effective integration of cyberspace capabilities into the Department of Defense's overall mission. This senior role involves directing staff activities, managing resource allocation, and fostering a culture of excellence within the command. Maj Gen Bradley L. Pyburn's leadership is crucial for maintaining operational readiness and advancing the command's objectives in cyberspace. The scope of this position impacts the strategic direction and day-to-day functioning of US Cyber Command.

    Sheri Fleming - J5 Deputy Chief of Staff

    Sheri Fleming, the J5 Deputy Chief of Staff at US Cyber Command, leads strategic planning and policy development for the command's international engagements and partnerships. Fleming ensures that US Cyber Command's cyberspace capabilities are effectively coordinated with allies and international bodies, supporting broader Department of Defense objectives. This role is vital for shaping the command's global posture and influence in cyberspace. Sheri Fleming oversees the development of strategic initiatives that enhance interoperability and collective cyber defense. The expertise of Fleming is instrumental in navigating complex geopolitical landscapes related to cyber operations.

    Christopher Assi - Chief Operations Officer

    Christopher Assi, the Chief Operations Officer at US Cyber Command, directs the execution of all operational activities, ensuring the seamless delivery of cyberspace capabilities. Assi oversees the integration of technology and personnel to meet the Department of Defense's cyber mission requirements. This executive position is central to maintaining the command's operational readiness and effectiveness in cyberspace. Christopher Assi focuses on optimizing operational workflows and enhancing the efficiency of cyber defense strategies. The leadership of Assi is critical for the command's ability to conduct complex cyber operations and respond to evolving threats.

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    Frequently Asked Questions Regarding US Cyber Command Top Executives and Leadership Team

    Who leads US Cyber Command?
    US Cyber Command is led by Ken Paul (Chief of Staff), along with executives such as Katrina Streeter (J9, Acquisition & Technology Diectorate Chief of Staff) and Joe Gelineau (Deputy Chief of Staff).
    Who is part of US Cyber Command’s executive team?
    The executive team of US Cyber Command includes leaders such as Ken Paul (Chief of Staff), Katrina Streeter (J9, Acquisition & Technology Diectorate Chief of Staff), Joe Gelineau (Deputy Chief of Staff) and other senior executives.
    How many executives does US Cyber Command have?
    US Cyber Command has 7 executives leading key business areas.
    What roles are included in US Cyber Command’s leadership team?
    The leadership team of US Cyber Command includes roles such as Chief of Staff, J9, Acquisition & Technology Diectorate Chief of Staff, Deputy Chief of Staff, Division Deputy Chief of Staff, Operations, Cyber Command Chief of Staff (US).