AICPA & CIMA Executive and Leadership Team

July, 2026

Leadership Overview

AICPA & CIMA has 10 executives leading key functions including strategy, finance, operations, and technology.

Driven by a commitment to professional development, AICPA & CIMA provides essential tools, resources, and intelligence for navigating complexity, anticipating risk, and creating opportunity within the accounting profession.

Leadership Roles at AICPA & CIMA

  • Chief Executive Officer - Herbert Miller
  • President & Chief Executive Officer - Mark Koziel
  • Chief Financial Officer - Boma Osime
  • Corporate Chief Financial Officer - Dominique Amghar
  • Fractional Chief Financial Officer & Controller - John Regan
  • Chief Financial Officer, Fractional (Contract & Seasonal) - Joseph Morkos
  • Chief Operating Officer - Scott Spiegel
  • Manager - Chief Operating Officer Operations - Jamie McNair
  • Chief Technology Officer - Johnson Lopulisa
  • Strategic Alignment Chief of Staff - Natasha Schamberger
  • Herbert Miller - Chief Executive Officer

    Herbert Miller, the Chief Executive Officer at AICPA & CIMA, directs the overarching strategic vision and operational execution for the organization. Miller's leadership focuses on enhancing the value proposition for members by ensuring the delivery of critical tools, resources, and intelligence. This involves fostering an environment that empowers professionals to clarify complexity, anticipate risk, and create opportunity within the global accounting landscape. Miller's responsibilities include guiding the organization's growth initiatives and ensuring alignment with its core mission. The Chief Executive Officer's role is pivotal in shaping the future direction of AICPA & CIMA, driving innovation in member services, and solidifying the organization's position as a leading professional body. Miller ensures that all strategic decisions directly support the objective of providing unparalleled support to accounting professionals worldwide. This executive guides the organization's engagement with key stakeholders and oversees the development of long-term strategic plans.

    Mark Koziel - President & Chief Executive Officer

    Mark Koziel, the President & Chief Executive Officer at AICPA & CIMA, spearheads the strategic direction and operational management of the global accounting association. Koziel's mandate involves driving initiatives that enhance member value, foster professional growth, and expand the organization's reach. This leadership role ensures that AICPA & CIMA effectively provides the necessary tools, resources, and intelligence for professionals to navigate complex financial landscapes, mitigate risks, and capitalize on emerging opportunities. Mark Koziel oversees the integration of services and resources designed to support accounting professionals across diverse markets. The President & Chief Executive Officer's influence extends to shaping industry standards and advocating for the profession's advancement. Koziel's strategic oversight is critical for maintaining the organization's commitment to clarity, foresight, and opportunity creation for its global membership. This executive champions initiatives that strengthen the accounting profession's impact and relevance.
    Mark Koziel

    Boma Osime - Chief Financial Officer

    Boma Osime, the Chief Financial Officer at AICPA & CIMA, manages the organization's financial health and strategic fiscal planning. Osime's role is critical in ensuring the sustainable provision of resources and tools that empower accounting professionals. This involves overseeing budgeting, financial reporting, and investment strategies to support the organization's mission of clarifying complexity, anticipating risk, and creating opportunity. Boma Osime's financial acumen guides resource allocation to maximize impact for members. The Chief Financial Officer's oversight ensures fiscal responsibility and supports long-term growth objectives. Osime is responsible for financial risk management and compliance, safeguarding the organization's assets and operational continuity. This executive's financial stewardship is integral to AICPA & CIMA's ability to deliver value.
    Boma Osime

    Dominique Amghar - Corporate Chief Financial Officer

    Dominique Amghar, the Corporate Chief Financial Officer at AICPA & CIMA, oversees the comprehensive financial operations and strategic financial planning for the association. Amghar's responsibilities include managing corporate finance, ensuring fiscal integrity, and supporting the delivery of essential resources that empower accounting professionals. This role is vital for enabling members to clarify complexity, anticipate risk, and create opportunity within their practices. Dominique Amghar directs financial strategies that align with the organization's mission and long-term objectives. The Corporate Chief Financial Officer ensures robust financial controls and reporting mechanisms are in place. Amghar's financial leadership contributes to the organization's stability and capacity to invest in member-focused initiatives, driving value and growth.

    John Regan - Fractional Chief Financial Officer & Controller

    John Regan, the Fractional Chief Financial Officer & Controller at AICPA & CIMA, provides specialized financial oversight and control functions. Regan's expertise supports the organization's mission by ensuring sound financial management practices that enable the effective provision of resources for accounting professionals. This role focuses on helping members clarify complexity, anticipate risk, and create opportunity through robust financial guidance. John Regan's contributions are essential for maintaining financial discipline and optimizing resource allocation. The Fractional Chief Financial Officer & Controller's responsibilities include managing financial reporting and internal controls. Regan's strategic financial input enhances the organization's capacity to deliver value and support professional development.

    Joseph Morkos - Chief Financial Officer, Fractional (Contract & Seasonal)

    Joseph Morkos, the Chief Financial Officer, Fractional (Contract & Seasonal) at AICPA & CIMA, delivers expert financial management services on a flexible basis. Morkos's role ensures that the organization maintains strong financial oversight, supporting its commitment to providing essential tools and resources for accounting professionals. This function is key to enabling members to clarify complexity, anticipate risk, and create opportunity within their financial practices. Joseph Morkos provides critical financial insights and controls, adapting to the organization's evolving needs. The Chief Financial Officer, Fractional (Contract & Seasonal)'s expertise contributes to financial stability and strategic planning. Morkos's flexible financial leadership enhances AICPA & CIMA's operational agility and resource management.

    Scott Spiegel - Chief Operating Officer

    Scott Spiegel, the Chief Operating Officer at AICPA & CIMA, directs the day-to-day operational functions and ensures the efficient delivery of member services. Spiegel's focus is on optimizing internal processes and resource allocation to support the organization's mission of providing essential tools, resources, and intelligence. This involves overseeing the operational infrastructure that enables professionals to clarify complexity, anticipate risk, and create opportunity. Scott Spiegel's leadership ensures seamless execution of strategic initiatives across various departments. The Chief Operating Officer plays a crucial part in enhancing operational efficiency and member satisfaction. Spiegel's responsibilities include managing cross-functional teams to achieve organizational goals and maintain high standards of service delivery. This executive drives operational excellence, ensuring that AICPA & CIMA effectively supports its global membership.

    Jamie McNair - Manager - Chief Operating Officer Operations

    Jamie McNair, the Manager - Chief Operating Officer Operations at AICPA & CIMA, supports the operational execution and efficiency initiatives led by the Chief Operating Officer. McNair's role is integral to ensuring that the organization's operational framework effectively delivers the tools, resources, and intelligence members need. This involves contributing to processes that help professionals clarify complexity, anticipate risk, and create opportunity. Jamie McNair assists in managing operational workflows and implementing improvements to enhance service delivery. The Manager - Chief Operating Officer Operations plays a key part in the seamless functioning of daily operations. McNair's dedication to operational excellence supports AICPA & CIMA's mission of empowering accounting professionals globally.

    Johnson Lopulisa - Chief Technology Officer

    Johnson Lopulisa, the Chief Technology Officer at AICPA & CIMA, leads the organization's technology strategy and digital transformation efforts. Lopulisa is responsible for developing and implementing innovative technological solutions that enhance member access to critical tools, resources, and intelligence. This role ensures that AICPA & CIMA leverages technology to help professionals clarify complexity, anticipate risk, and create opportunity in the accounting field. Johnson Lopulisa oversees the development of digital platforms and data management systems that support the organization's global operations. The Chief Technology Officer's vision is essential for driving technological advancement and ensuring the security and scalability of IT infrastructure. Lopulisa's expertise is key to modernizing services and improving member engagement through digital channels.

    Natasha Schamberger - Strategic Alignment Chief of Staff

    Natasha Schamberger, the Strategic Alignment Chief of Staff at AICPA & CIMA, facilitates the execution of strategic initiatives and ensures cohesive operations across the organization. Schamberger's role is pivotal in translating the leadership's vision into actionable plans, supporting the delivery of tools and resources that help professionals clarify complexity, anticipate risk, and create opportunity. Natasha Schamberger works closely with executive leadership to drive alignment and optimize performance. The Strategic Alignment Chief of Staff ensures that departmental efforts are synchronized with overarching organizational goals. Schamberger's focus on strategic execution is critical for enhancing the effectiveness and impact of AICPA & CIMA's services to its global membership.

    Explore Leadership Teams in Membership Organizations

    Frequently Asked Questions Regarding AICPA & CIMA Top Executives and Leadership Team

    Who leads AICPA & CIMA?
    AICPA & CIMA is led by Herbert Miller (Chief Executive Officer), along with executives such as Mark Koziel (President & Chief Executive Officer) and Boma Osime (Chief Financial Officer).
    Who is part of AICPA & CIMA’s executive team?
    The executive team of AICPA & CIMA includes leaders such as Herbert Miller (Chief Executive Officer), Mark Koziel (President & Chief Executive Officer), Boma Osime (Chief Financial Officer) and other senior executives.
    How many executives does AICPA & CIMA have?
    AICPA & CIMA has 10 executives leading key business areas.
    What roles are included in AICPA & CIMA’s leadership team?
    The leadership team of AICPA & CIMA includes roles such as Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Corporate Chief Financial Officer, Fractional Chief Financial Officer & Controller.