BDO USA Executive and Leadership Team

July, 2026

Leadership Overview

BDO USA has 10 executives leading key functions including finance, operations, information technology, and strategy.

Driven by a commitment to client success, BDO USA delivers assurance, tax, and financial advisory services, shaping market dynamics through expert guidance and global reach.

Leadership Roles at BDO USA

  • President & Chief Executive Officer, BDO Public Sector - Frank Landefeld
  • Chief Financial Officer - Mazen Mahfouz
  • Fractional Chief Financial Officer - Robert Owens
  • Regional Chief Financial Officer - George Tsikelashvili
  • Chief Financial Officer, Fractional - Kevin Jacobs
  • Chief Operating Officer - Mark Ellenbogen
  • Director, Strategic Initiatives & Chief Operating Officer, Office of - Christy Cheung
  • Chief of Staff - Matthew Uchno
  • Director, Information Technology & Chief Information Officer, Office of - William Wadlington
  • Director, Management Consulting and Chief of Staff, People Strategy and Solutions - Nishi Moonka
  • Frank Landefeld - President & Chief Executive Officer, BDO Public Sector

    Frank Landefeld, the President & Chief Executive Officer, BDO Public Sector at BDO USA, directs the strategic vision and operational execution for the firm's public sector division. This leadership position involves guiding the delivery of specialized assurance, tax, and advisory services to government entities and public organizations nationwide. Landefeld focuses on expanding BDO USA's footprint within the public sector market, fostering key relationships and ensuring client success. The Chief Executive Officer drives initiatives to enhance service offerings and adapt to the unique regulatory and operational demands of government clients. By providing decisive leadership and strategic direction, Frank Landefeld strengthens BDO USA's commitment to serving the public sector with integrity and expertise.
    Frank Landefeld

    Mazen Mahfouz - Chief Financial Officer

    Mazen Mahfouz, the Chief Financial Officer at BDO USA, directs the financial strategy and fiscal operations for the organization. This leadership position involves overseeing all financial planning, budgeting, and reporting activities, ensuring robust financial health and compliance across the enterprise. Mahfouz's oversight extends to managing investment portfolios and optimizing capital allocation to support BDO USA's growth objectives. The Chief Financial Officer also collaborates with other executive leaders to align financial goals with the company's broader strategic initiatives, driving profitability and shareholder value. By implementing stringent financial controls and fostering efficient resource management, Mazen Mahfouz ensures the firm's sustained financial integrity and operational excellence in the competitive accounting and advisory landscape.

    Robert Owens - Fractional Chief Financial Officer

    Robert Owens, the Fractional Chief Financial Officer at BDO USA, provides specialized financial leadership and strategic guidance on a flexible basis. This role focuses on delivering expert financial management services tailored to specific client needs or project requirements, enhancing fiscal oversight and strategic planning. Owens contributes to financial analysis, budgeting, and forecasting, ensuring optimal resource utilization and financial performance. The Fractional Chief Financial Officer collaborates with internal teams to identify opportunities for financial optimization and risk mitigation. By offering agile financial expertise, Robert Owens supports BDO USA's commitment to delivering comprehensive assurance, tax, and advisory services, ensuring clients receive precise and impactful financial direction.

    George Tsikelashvili - Regional Chief Financial Officer

    George Tsikelashvili, the Regional Chief Financial Officer at BDO USA, manages financial operations and strategic fiscal planning for designated geographic regions. This executive role involves overseeing regional financial performance, ensuring compliance with financial regulations, and optimizing resource allocation to support local market growth. Tsikelashvili collaborates closely with regional leadership to develop and execute financial strategies that align with BDO USA's national objectives. The Regional Chief Financial Officer also monitors market trends and economic conditions to identify opportunities and mitigate financial risks within their purview. By providing expert financial oversight, George Tsikelashvili ensures the sustained financial health and operational efficiency of BDO USA's regional operations.

    Kevin Jacobs - Chief Financial Officer, Fractional

    Kevin Jacobs, the Chief Financial Officer, Fractional at BDO USA, delivers expert financial management and strategic advisory services on a flexible, project-specific basis. This role focuses on providing high-level financial oversight, analysis, and planning to support clients' evolving business needs. Jacobs works closely with leadership teams to optimize financial performance, manage budgets, and implement effective fiscal strategies. The Fractional Chief Financial Officer contributes to critical decision-making processes, ensuring financial clarity and driving sustainable growth. By offering specialized financial acumen, Kevin Jacobs enhances BDO USA's ability to provide tailored solutions and robust support across its assurance, tax, and advisory service lines.

    Mark Ellenbogen - Chief Operating Officer

    Mark Ellenbogen, the Chief Operating Officer at BDO USA, orchestrates the firm's day-to-day operational functions and drives efficiency across all service lines. This executive role encompasses the management of internal processes, resource deployment, and operational performance metrics to ensure seamless service delivery. Ellenbogen focuses on optimizing workflows and implementing best practices to enhance client satisfaction and operational scalability. The Chief Operating Officer also plays a crucial part in integrating new technologies and methodologies to streamline operations and maintain BDO USA's competitive edge. By fostering a culture of continuous improvement, Mark Ellenbogen ensures that the firm's operational infrastructure effectively supports its strategic goals and commitment to delivering high-quality assurance, tax, and advisory services nationwide.

    Christy Cheung - Director, Strategic Initiatives & Chief Operating Officer, Office of

    Christy Cheung, the Director, Strategic Initiatives & Chief Operating Officer, Office of at BDO USA, spearheads critical strategic projects and enhances operational effectiveness across the firm. This executive function involves identifying and developing new business opportunities, driving innovation, and optimizing operational frameworks to support BDO USA's growth objectives. Cheung leads cross-functional teams to execute complex initiatives, ensuring alignment with the company's overarching mission. The Chief Operating Officer, Office of, also focuses on refining internal processes and resource allocation to maximize efficiency and client service quality. By driving strategic planning and operational excellence, Christy Cheung ensures BDO USA remains at the forefront of delivering expert assurance, tax, and financial advisory services.

    Matthew Uchno - Chief of Staff

    Matthew Uchno, the Chief of Staff at BDO USA, provides strategic support and operational coordination to the executive leadership team. This pivotal role involves managing key initiatives, facilitating cross-departmental collaboration, and ensuring the effective execution of strategic priorities. Uchno acts as a central point of contact for critical projects, driving alignment and facilitating communication between various business units. The Chief of Staff also contributes to organizational development and process improvement, enhancing the overall effectiveness of BDO USA's operations. By streamlining executive decision-making and ensuring efficient project management, Matthew Uchno supports the firm's mission to deliver comprehensive assurance, tax, and financial advisory services with precision and expertise.

    William Wadlington - Director, Information Technology & Chief Information Officer, Office of

    William Wadlington, the Director, Information Technology & Chief Information Officer, Office of at BDO USA, directs the company's technology strategy and information systems infrastructure. This leadership function involves overseeing the development, implementation, and maintenance of all IT operations, ensuring robust cybersecurity measures and data integrity. Wadlington is responsible for leveraging technology to enhance service delivery, improve operational efficiency, and support BDO USA's global network. The Chief Information Officer also guides digital transformation initiatives, exploring innovative solutions to meet evolving client needs in assurance, tax, and advisory services. By ensuring a secure and advanced technological foundation, William Wadlington empowers the firm to deliver exceptional client experiences and maintain its market leadership.
    William Wadlington

    Nishi Moonka - Director, Management Consulting and Chief of Staff, People Strategy and Solutions

    Nishi Moonka, the Director, Management Consulting and Chief of Staff, People Strategy and Solutions at BDO USA, drives strategic initiatives within management consulting and oversees people-focused solutions. This leadership role involves developing and implementing consulting strategies that enhance client organizational effectiveness and talent management. Moonka directs efforts to optimize workforce planning, employee engagement, and talent development programs, ensuring BDO USA's internal capabilities align with its service delivery excellence. The Chief of Staff, People Strategy and Solutions, also facilitates executive decision-making and operational alignment within the people strategy domain. By integrating consulting expertise with strategic human capital management, Nishi Moonka strengthens BDO USA's capacity to deliver comprehensive advisory services.

    Frequently Asked Questions Regarding BDO USA Top Executives and Leadership Team

    Who leads BDO USA?
    BDO USA is led by Frank Landefeld (President & Chief Executive Officer, BDO Public Sector), along with executives such as Mazen Mahfouz (Chief Financial Officer) and Robert Owens (Fractional Chief Financial Officer).
    Who is part of BDO USA’s executive team?
    The executive team of BDO USA includes leaders such as Frank Landefeld (President & Chief Executive Officer, BDO Public Sector), Mazen Mahfouz (Chief Financial Officer), Robert Owens (Fractional Chief Financial Officer) and other senior executives.
    How many executives does BDO USA have?
    BDO USA has 10 executives leading key business areas.
    What roles are included in BDO USA’s leadership team?
    The leadership team of BDO USA includes roles such as President & Chief Executive Officer, BDO Public Sector, Chief Financial Officer, Fractional Chief Financial Officer, Regional Chief Financial Officer, Chief Financial Officer, Fractional.