Kirby Executive and Leadership Team

May, 2026

Leadership Overview

Kirby has 11 executives leading key functions including strategy, operations, and finance.

Driven by a commitment to operational excellence, Kirby is dedicated to providing essential marine transportation and industrial services, shaping market dynamics through its extensive fleet and comprehensive distribution network.

Leadership Roles at Kirby

  • Chief Executive Officer - David Grzebinski
  • Vice President, Finance & Divisional Chief Financial Officer, Kds - D. Hume
  • Executive Vice President & Chief Financial Officer - Raj Kumar
  • Vice President Chief Operating Officer - Joshua Poling
  • President & Chief Operating Officer - Christian O'Neil
  • President, Kirby Offshore Marine - James Farley
  • President - John Hallmark
  • Vice President & Chief Information Officer - Scott Miller
  • Vice President, General Counsel & Secretary - Amy Husted
  • Executive Chairman - Joseph Pyne
  • David Grzebinski - Chief Executive Officer

    David Grzebinski, the Chief Executive Officer at Kirby, directs the overarching corporate strategy and operational execution. Grzebinski guides the company's expansion in marine transportation and industrial services, ensuring alignment with market demands for bulk liquid transport and industrial equipment distribution. Overseeing the largest inland and offshore tank barge fleets in the United States, the Chief Executive Officer drives initiatives to enhance efficiency and safety across all operations. This leadership role involves fostering innovation within the Distribution and Services segment, which provides critical after-market support for diesel engines and transmissions. By focusing on strategic growth and operational integrity, David Grzebinski ensures Kirby maintains its premier position in the industry, impacting revenue streams through optimized fleet management and expanded service offerings.
    David Grzebinski

    D. Hume - Vice President, Finance & Divisional Chief Financial Officer, Kds

    D. Hume, the Vice President, Finance & Divisional Chief Financial Officer, Kds at Kirby, manages the financial operations and strategic fiscal planning for the Distribution and Services segment. Hume oversees budgeting, financial reporting, and capital allocation, ensuring the financial health and growth of this critical division. This role involves close collaboration with operational leaders to optimize profitability and manage financial risks associated with industrial equipment distribution and after-market services. The Vice President, Finance & Divisional Chief Financial Officer, Kds drives financial strategies that support the expansion of services for diesel engines, transmissions, and related industrial equipment. By ensuring sound financial management, D. Hume directly contributes to the segment's ability to serve oilfield services, marine, power generation, and other industrial markets effectively.

    Raj Kumar - Executive Vice President & Chief Financial Officer

    Raj Kumar, the Executive Vice President & Chief Financial Officer at Kirby, leads the company's financial strategy, planning, and reporting. Kumar oversees all aspects of financial management, including treasury, accounting, and investor relations, ensuring the fiscal strength and stability of Kirby Corporation. This critical role involves managing capital structure, driving profitability initiatives, and allocating resources to support strategic growth in both marine transportation and industrial services. The Executive Vice President & Chief Financial Officer works closely with executive leadership to identify investment opportunities and mitigate financial risks. By providing robust financial oversight and strategic insights, Raj Kumar ensures Kirby meets its financial objectives and enhances shareholder value.
    Raj Kumar

    Joshua Poling - Vice President Chief Operating Officer

    Joshua Poling, the Vice President Chief Operating Officer at Kirby, oversees the day-to-day operational execution across the company's diverse business units. Poling focuses on optimizing the efficiency and effectiveness of Kirby's marine transportation services, including the management of its vast inland and offshore tank barge fleets. This role involves implementing operational best practices, driving productivity improvements, and ensuring adherence to stringent safety and environmental standards. The Vice President Chief Operating Officer also plays a key part in integrating new acquisitions and expanding service capabilities within the Distribution and Services segment. By managing complex logistical operations and supply chains, Joshua Poling ensures reliable delivery of bulk liquid products and industrial equipment to customers nationwide.

    Christian O'Neil - President & Chief Operating Officer

    Christian O'Neil, the President & Chief Operating Officer at Kirby, directs the comprehensive operational strategies and execution for the company's marine transportation segment. O'Neil manages the extensive inland and offshore tank barge fleets, ensuring the safe and efficient transport of bulk liquid products across major U.S. waterways and coastlines. This leadership role involves optimizing fleet utilization, enhancing logistical capabilities, and driving operational excellence to meet customer demands for petrochemicals, refined petroleum products, and agricultural chemicals. The President & Chief Operating Officer also oversees capital investments in fleet modernization and expansion, reinforcing Kirby's position as the premier tank barge operator. Through strategic operational oversight, Christian O'Neil ensures the reliability and competitiveness of Kirby's core marine services.
    Christian O'Neil

    James Farley - President, Kirby Offshore Marine

    James Farley, the President, Kirby Offshore Marine at Kirby, directs the operations and strategic development of the company's offshore marine transportation services. Farley oversees the management and deployment of offshore tank barges, ensuring the safe and efficient transport of bulk liquid products along the U.S. coasts. This leadership position involves optimizing fleet performance, enhancing customer relationships, and expanding service offerings in key offshore markets. The President, Kirby Offshore Marine drives initiatives to improve operational efficiency, safety protocols, and environmental stewardship within the offshore segment. By focusing on strategic growth and operational excellence, James Farley strengthens Kirby's market presence and profitability in the offshore sector.

    John Hallmark - President

    John Hallmark, the President at Kirby, leads significant operational divisions within the company, focusing on driving growth and efficiency. Hallmark oversees key business units, ensuring alignment with Kirby's overall strategic objectives in marine transportation and industrial services. This role involves managing operational performance, fostering cross-functional collaboration, and implementing strategies to enhance market competitiveness. The President drives initiatives aimed at optimizing service delivery and expanding the company's reach within its target industries. By providing strong leadership and strategic direction, John Hallmark contributes to the sustained success and expansion of Kirby's diverse business portfolio.

    Scott Miller - Vice President & Chief Information Officer

    Scott Miller, the Vice President & Chief Information Officer at Kirby, directs the company's technology strategy and information systems infrastructure. Miller oversees the implementation and management of IT solutions that support Kirby's extensive marine transportation and industrial services operations. This leadership position involves ensuring the security, reliability, and efficiency of all digital platforms, from enterprise resource planning systems to operational technology for barge fleets. The Vice President & Chief Information Officer drives digital transformation initiatives, enhancing data analytics capabilities and streamlining business processes across the organization. By leveraging technology, Scott Miller supports operational improvements, facilitates better decision-making, and strengthens Kirby's competitive advantage in the market.
    Scott Miller

    Amy Husted - Vice President, General Counsel & Secretary

    Amy Husted, the Vice President, General Counsel & Secretary at Kirby, provides comprehensive legal counsel and oversees corporate governance. Husted manages all legal affairs, ensuring compliance with federal and state regulations impacting marine transportation and industrial services. This role involves advising the board of directors and executive management on legal matters, risk management, and corporate policy. The Vice President, General Counsel & Secretary also directs litigation, contract negotiations, and regulatory compliance efforts across Kirby's operations. By safeguarding the company's legal interests and upholding corporate governance standards, Amy Husted plays a vital role in maintaining Kirby's operational integrity and reputation.

    Joseph Pyne - Executive Chairman

    Joseph Pyne, the Executive Chairman at Kirby, provides high-level strategic guidance and governance for the corporation. Pyne's role involves overseeing the long-term vision and corporate direction, ensuring the company's continued leadership in marine transportation and industrial services. As Executive Chairman, Pyne engages with the board of directors to shape strategic initiatives that reinforce Kirby's market dominance. This position focuses on maintaining strong stakeholder relationships and fostering a culture of sustained growth and operational excellence. The influence of Joseph Pyne extends to guiding the company's response to evolving industry landscapes and economic conditions, ensuring robust performance across its diverse business segments.

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    Frequently Asked Questions Regarding Kirby Top Executives and Leadership Team

    Who leads Kirby?
    Kirby is led by David Grzebinski (Chief Executive Officer), along with executives such as D. Hume (Vice President, Finance & Divisional Chief Financial Officer, Kds) and Raj Kumar (Executive Vice President & Chief Financial Officer).
    Who is part of Kirby’s executive team?
    The executive team of Kirby includes leaders such as David Grzebinski (Chief Executive Officer), D. Hume (Vice President, Finance & Divisional Chief Financial Officer, Kds), Raj Kumar (Executive Vice President & Chief Financial Officer) and other senior executives.
    How many executives does Kirby have?
    Kirby has 10 executives leading key business areas.
    What roles are included in Kirby’s leadership team?
    The leadership team of Kirby includes roles such as Chief Executive Officer, Vice President, Finance & Divisional Chief Financial Officer, Kds, Executive Vice President & Chief Financial Officer, Vice President Chief Operating Officer, President & Chief Operating Officer.