CACI International Executive and Leadership Team

October, 2026

Leadership Overview

CACI International has 10 executives leading key functions including strategy, human capital, digital innovation, and operational excellence.

Focused on advancing national security through technology, CACI International delivers mission-critical solutions that modernize government infrastructure and support complex defense operations across global markets.

Leadership Roles at CACI International

  • President & Chief Executive Officer - John Mengucci
  • Executive VP & Chief Operating Officer - David Young
  • Executive VP & Chief Human Resources Officer - Angie Combs
  • Deputy Chief Technology Officer, Caci Digital Solutions - William Colangelo
  • Contractor Support To DON Chief Information Officer - Steve Daughety
  • C-Suite Executive Assistant, Chief Human Resources Officer - Jennifer LaFollette
  • Chief Scientist & Chief Technology Officer, High-Power Laser Technology - Stephan Wielandy
  • Vice President - Chief Technology Officer for Digital Solutions - Joseph Nicoletti
  • Executive VP & Chief Human Resources Officer - Marcie Small
  • Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive - C. Holliday-Graham
  • John Mengucci - President & Chief Executive Officer

    John Mengucci, the President & Chief Executive Officer at CACI International, directs the overarching corporate strategy and long-term growth initiatives. Overseeing the entire enterprise, the President & Chief Executive Officer ensures alignment between technological capabilities and the evolving requirements of national security missions. This leadership role involves managing complex domestic and international operations while maintaining high standards for government modernization projects. By fostering innovation across cyber, space, and engineering sectors, John Mengucci drives the company toward sustained market leadership. The President & Chief Executive Officer maintains constant communication with the Board to ensure fiscal health and operational agility. Through rigorous oversight of large-scale federal contracts, Mengucci secures the company's position as a primary partner for defense and intelligence agencies, ultimately delivering value to stakeholders while advancing critical national interests.
    John Mengucci

    David Young - Executive VP & Chief Operating Officer

    David Young, the Executive VP & Chief Operating Officer at CACI International, manages the day-to-day execution of domestic operations and service delivery. Overseeing the integration of engineering services and mission support, the Executive VP & Chief Operating Officer ensures that all projects meet client expectations for quality and efficiency. This leadership role involves optimizing internal processes to support the company's growth in the federal sector. By coordinating across various business units, David Young drives operational excellence and resource allocation. The Executive VP & Chief Operating Officer works with the leadership team to scale service delivery models that address the evolving needs of intelligence and defense agencies. Through disciplined management of operational workflows, Young maintains the company's reputation for reliability, ensuring that all mission-critical tasks are completed on time and within budget while supporting the broader strategic goals of the organization.
    David Young

    Angie Combs - Executive VP & Chief Human Resources Officer

    Angie Combs, the Executive VP & Chief Human Resources Officer at CACI International, architects the talent acquisition and workforce development strategies necessary for mission success. Overseeing human capital initiatives, the Executive VP & Chief Human Resources Officer ensures the organization attracts top-tier engineering and technical talent to support complex defense programs. This leadership role involves designing comprehensive retention programs and fostering a culture of excellence across the domestic and international segments. By aligning personnel capabilities with the specific demands of government modernization, Angie Combs directly impacts the company's ability to execute high-stakes projects. The Executive VP & Chief Human Resources Officer collaborates with other C-suite leaders to optimize organizational structure and performance management systems. Through strategic workforce planning, Combs strengthens the internal foundation required to meet the rigorous standards of intelligence and federal civilian clients.

    William Colangelo - Deputy Chief Technology Officer, Caci Digital Solutions

    William Colangelo, the Deputy Chief Technology Officer, Caci Digital Solutions at CACI International, drives the technical roadmap for digital transformation and enterprise IT services. Overseeing the implementation of advanced software solutions, the Deputy Chief Technology Officer, Caci Digital Solutions ensures that federal agencies receive cutting-edge tools for mission support. This leadership role involves bridging the gap between complex engineering requirements and scalable digital architecture. By managing technical teams focused on modernization, William Colangelo accelerates the delivery of secure, efficient systems for government clients. The Deputy Chief Technology Officer, Caci Digital Solutions coordinates with internal stakeholders to integrate emerging technologies into existing service frameworks. Through constant evaluation of digital trends, Colangelo maintains the company's competitive edge in the federal IT landscape, ensuring that all digital solutions meet the highest security and performance benchmarks required for national defense.

    Steve Daughety - Contractor Support To DON Chief Information Officer

    Steve Daughety, the Contractor Support To DON Chief Information Officer at CACI International, manages the technical advisory services provided to the Department of the Navy. Overseeing the alignment of IT infrastructure with naval mission requirements, the Contractor Support To DON Chief Information Officer ensures that information systems remain resilient and secure. This leadership role involves translating complex government directives into actionable technical strategies for maritime defense operations. By providing specialized expertise in enterprise IT, Steve Daughety supports the modernization of naval communication and data networks. The Contractor Support To DON Chief Information Officer works closely with government stakeholders to identify gaps in current technology and implement robust, scalable solutions. Through meticulous oversight of these critical support functions, Daughety enhances the operational readiness of naval forces, ensuring that all technology deployments adhere to strict federal governance and security standards.

    Jennifer LaFollette - C-Suite Executive Assistant, Chief Human Resources Officer

    Jennifer LaFollette, the C-Suite Executive Assistant, Chief Human Resources Officer at CACI International, coordinates the administrative and operational workflows for the human resources division. Overseeing the scheduling and communication flow for the Chief Human Resources Officer, the C-Suite Executive Assistant, Chief Human Resources Officer ensures that leadership priorities receive immediate attention. This leadership role involves managing sensitive personnel data and facilitating cross-departmental collaboration on workforce initiatives. By streamlining executive processes, Jennifer LaFollette allows the human resources team to focus on high-level talent strategy and organizational development. The C-Suite Executive Assistant, Chief Human Resources Officer maintains the integrity of internal records and supports the execution of corporate culture programs. Through efficient management of executive time and resources, LaFollette contributes to the overall stability and productivity of the human capital function, ensuring that leadership remains focused on driving the company's mission-critical objectives.

    Stephan Wielandy - Chief Scientist & Chief Technology Officer, High-Power Laser Technology

    Stephan Wielandy, the Chief Scientist & Chief Technology Officer, High-Power Laser Technology at CACI International, leads the research and development of advanced directed-energy systems. Overseeing the innovation pipeline for high-power laser applications, the Chief Scientist & Chief Technology Officer, High-Power Laser Technology ensures that the company remains at the forefront of defense technology. This leadership role involves managing complex engineering projects that support national security missions in the space and defense sectors. By directing scientific research, Stephan Wielandy translates theoretical breakthroughs into practical, field-ready solutions for government customers. The Chief Scientist & Chief Technology Officer, High-Power Laser Technology collaborates with technical teams to refine laser performance and integration capabilities. Through rigorous testing and development, Wielandy advances the company's portfolio of proprietary technology, providing critical advantages in modern warfare scenarios and ensuring that all laser-based systems meet the highest standards of precision and reliability.

    Joseph Nicoletti - Vice President - Chief Technology Officer for Digital Solutions

    Joseph Nicoletti, the Vice President - Chief Technology Officer for Digital Solutions at CACI International, directs the technical strategy for the company's digital solutions portfolio. Overseeing the development of software products and data services, the Vice President - Chief Technology Officer for Digital Solutions ensures that these offerings meet the complex requirements of commercial and government clients. This leadership role involves identifying new technology trends and integrating them into the company's service offerings. By managing the technical direction of digital projects, Joseph Nicoletti supports the modernization of enterprise IT systems. The Vice President - Chief Technology Officer for Digital Solutions collaborates with other technology leaders to ensure consistency and innovation across all digital platforms. Through strategic oversight of software engineering teams, Nicoletti drives the creation of proprietary data products that enhance the company's market position and provide significant value to federal and commercial customers.

    Marcie Small - Executive VP & Chief Human Resources Officer

    Marcie Small, the Executive VP & Chief Human Resources Officer at CACI International, leads the global human resources strategy with a focus on employee engagement and organizational health. Overseeing the implementation of performance-based compensation and professional development programs, the Executive VP & Chief Human Resources Officer ensures that the workforce remains highly skilled and motivated. This leadership role involves managing international HR operations to support the company's presence in Europe and beyond. By fostering an inclusive and high-performance environment, Marcie Small drives the retention of top talent in the competitive defense and technology sectors. The Executive VP & Chief Human Resources Officer works with the executive team to align human capital strategies with the company's long-term business objectives. Through proactive management of employee relations and organizational change, Small strengthens the company's ability to attract the expertise required for complex national security missions.
    Marcie Small

    C. Holliday-Graham - Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive

    C. Holliday-Graham, the Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive at CACI International, manages the technical compliance and governance frameworks for Department of Defense projects. Overseeing the integration of secure software practices, the Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive ensures that all IT systems adhere to strict federal security mandates. This leadership role involves bridging the gap between software engineering and regulatory compliance to protect critical mission data. By directing the implementation of governance directives, C. Holliday-Graham maintains the integrity and security of the company's digital infrastructure. The Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive collaborates with government oversight bodies to ensure that all technical solutions meet the highest standards of cybersecurity. Through rigorous attention to detail and technical precision, Holliday-Graham supports the company's commitment to secure and reliable mission support.

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    Frequently Asked Questions Regarding CACI International Top Executives and Leadership Team

    Who leads CACI International?
    CACI International is led by John Mengucci (President & Chief Executive Officer), along with executives such as David Young (Executive VP & Chief Operating Officer) and Angie Combs (Executive VP & Chief Human Resources Officer).
    Who is part of CACI International’s executive team?
    The executive team of CACI International includes leaders such as John Mengucci (President & Chief Executive Officer), David Young (Executive VP & Chief Operating Officer), Angie Combs (Executive VP & Chief Human Resources Officer) and other senior executives.
    How many executives does CACI International have?
    CACI International has 10 executives leading key business areas.
    What roles are included in CACI International’s leadership team?
    The leadership team of CACI International includes roles such as President & Chief Executive Officer, Executive VP & Chief Operating Officer, Executive VP & Chief Human Resources Officer, Deputy Chief Technology Officer, Caci Digital Solutions, Contractor Support To DON Chief Information Officer.