American Systems Executive and Leadership Team

July, 2026

Leadership Overview

American Systems has 6 executives leading key functions including operations, finance, information technology, and security.

Driven by a commitment to mission assurance, American Systems delivers critical capabilities across engineering, IT, and mission support services, empowering government agencies to modernize systems and enhance operational effectiveness.

Leadership Roles at American Systems

  • Chief Financial Officer - Sister Reardon
  • Executive Vice President & Chief Financial Officer - Mark Danisewicz
  • Chief Operating Officer - Lauren Kilcoyne
  • Chief Information Officer - Srinivas Rautwar
  • Deputy Chief Information Officer, Ncte - Gregory Miller
  • Chief Information Security Officer & Chief Information Officer - Brian Brian Neely
  • Sister Reardon - Chief Financial Officer

    Sister Reardon, the Chief Financial Officer at American Systems, manages the company's financial strategy and fiscal operations. Reardon oversees all aspects of financial planning, budgeting, and reporting, ensuring the company's financial health and stability. This critical role involves managing revenue streams from government contracts, optimizing cost structures, and ensuring compliance with federal financial regulations. The Chief Financial Officer's guidance supports American Systems' ability to invest in advanced technologies and expand its service offerings to defense, intelligence, and federal civilian agencies. Reardon's financial acumen is essential for sustaining the company's employee-owned structure and its long-term partnerships with national security clients. Sister Reardon drives financial discipline across the organization, enabling the successful execution of large-scale programs and the continuous modernization of complex government systems.

    Mark Danisewicz - Executive Vice President & Chief Financial Officer

    Mark Danisewicz, the Executive Vice President & Chief Financial Officer at American Systems, provides senior financial leadership and strategic oversight for the company's fiscal operations. Danisewicz collaborates with the Chief Financial Officer to manage financial planning, investment strategies, and resource allocation, ensuring robust financial performance and stability. This executive role is pivotal in supporting American Systems' growth and its capacity to deliver complex engineering, IT, and mission support services to government clients. The Executive Vice President & Chief Financial Officer's expertise is crucial for navigating the financial intricacies of government contracting and maintaining the company's employee-owned structure. Mark Danisewicz's financial stewardship enables the company to invest in technological advancements and sustain its long-term partnerships, underpinning its mission assurance objectives for national security operations.

    Lauren Kilcoyne - Chief Operating Officer

    Lauren Kilcoyne, the Chief Operating Officer at American Systems, directs the company's operational execution and service delivery across its diverse portfolio. Overseeing the integration of engineering, information technology, and mission support functions, Kilcoyne ensures seamless support for defense, intelligence, and federal civilian agencies. This leadership role involves optimizing internal processes to enhance efficiency and client satisfaction, directly contributing to the company's reputation for technical expertise and lifecycle support. Kilcoyne drives the strategic deployment of resources to meet the complex demands of government operations, focusing on the modernization of critical systems and the assurance of secure technology environments. The Chief Operating Officer's purview extends to managing the delivery of capabilities in systems engineering, cybersecurity, enterprise IT, software development, data analytics, training, and test and evaluation, solidifying American Systems' position as a vital partner in national security initiatives.

    Srinivas Rautwar - Chief Information Officer

    Srinivas Rautwar, the Chief Information Officer at American Systems, directs the company's overall information technology strategy and infrastructure. Rautwar oversees the implementation and management of enterprise IT systems, ensuring they align with business objectives and support the delivery of engineering, information technology, and mission support services. This leadership position involves driving innovation in areas such as software development, data analytics, and cloud computing to enhance operational effectiveness for government clients. The Chief Information Officer's responsibilities include maintaining the security and reliability of technology environments, crucial for defense and intelligence agencies. Srinivas Rautwar champions the adoption of advanced IT solutions that enable public sector organizations to modernize complex systems and maintain secure operations, reinforcing American Systems' role as a trusted partner in national security.
    Srinivas Rautwar

    Gregory Miller - Deputy Chief Information Officer, Ncte

    Gregory Miller, the Deputy Chief Information Officer, Ncte at American Systems, supports the strategic direction and operational execution of the company's information technology initiatives, with a specific focus on the Network Centric Warfare Enterprise (NCTE). Miller collaborates with the Chief Information Officer to enhance and maintain the robust IT infrastructure that underpins American Systems' service delivery to defense and intelligence agencies. This role involves overseeing the deployment of technology solutions that improve operational effectiveness and ensure the security of sensitive government data. Gregory Miller contributes to modernizing complex systems and supporting large-scale programs by ensuring the seamless integration of IT capabilities. The Deputy Chief Information Officer, Ncte's efforts are vital in maintaining secure and reliable technology environments, directly supporting mission assurance for national security clients.

    Brian Brian Neely - Chief Information Security Officer & Chief Information Officer

    Brian Brian Neely, the Chief Information Security Officer & Chief Information Officer at American Systems, holds dual responsibility for safeguarding the company's information assets and directing its overall IT strategy. Neely architects and implements comprehensive cybersecurity measures to protect sensitive data and critical systems supporting defense, intelligence, and federal civilian agencies. This leadership role involves ensuring compliance with stringent government security protocols and driving the adoption of advanced security technologies. The Chief Information Security Officer & Chief Information Officer also oversees the enterprise IT infrastructure, focusing on enhancing operational effectiveness and modernizing complex systems. Brian Brian Neely's integrated approach ensures that American Systems delivers secure, reliable, and cutting-edge technology solutions, reinforcing its commitment to mission assurance and lifecycle support for national security programs.

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    Frequently Asked Questions Regarding American Systems Top Executives and Leadership Team

    Who leads American Systems?
    American Systems is led by Sister Reardon (Chief Financial Officer), along with executives such as Mark Danisewicz (Executive Vice President & Chief Financial Officer) and Lauren Kilcoyne (Chief Operating Officer).
    Who is part of American Systems’s executive team?
    The executive team of American Systems includes leaders such as Sister Reardon (Chief Financial Officer), Mark Danisewicz (Executive Vice President & Chief Financial Officer), Lauren Kilcoyne (Chief Operating Officer) and other senior executives.
    How many executives does American Systems have?
    American Systems has 6 executives leading key business areas.
    What roles are included in American Systems’s leadership team?
    The leadership team of American Systems includes roles such as Chief Financial Officer, Executive Vice President & Chief Financial Officer, Chief Operating Officer, Chief Information Officer, Deputy Chief Information Officer, Ncte.