Kirby Executive and Leadership Team

David Grzebinski, the Chief Executive Officer at Kirby, directs the overall strategic vision and operational execution for the company's marine transportation and industrial services segments. Overseeing the nation's largest inland and offshore tank barge fleets, Grzebinski ensures the efficient and safe transport of bulk liquid products, including petrochemicals, refined petroleum, and agricultural chemicals across vital U.S. waterways. This leadership extends to the Distribution and Services segment, where Grzebinski drives the company's position as a nationwide distributor and after-market service provider for diesel engines and industrial equipment. By focusing on market expansion and operational efficiency, David Grzebinski guides Kirby's sustained growth and its critical role in supporting the energy and agricultural sectors. The Chief Executive Officer's purview encompasses all aspects of the business, from fleet management and logistics to the strategic acquisition and integration of new service capabilities, ensuring Kirby maintains its premier market standing.

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. This critical role involves overseeing all accounting functions, financial reporting, budgeting, and forecasting specifically for the division that distributes diesel engines, transmissions, and related industrial equipment. D. Hume ensures robust financial controls and drives profitability by analyzing market trends and optimizing resource allocation within the Kds operations. The Vice President, Finance & Divisional Chief Financial Officer, Kds plays a key part in supporting the segment's after-market service providers and manufacturers of oilfield and power generation equipment. By providing sharp financial oversight, D. Hume contributes directly to the segment's ability to serve diverse industrial markets, including oilfield services, marine, and on-highway sectors, ensuring financial health and strategic alignment with Kirby's broader corporate objectives.

Raj Kumar, the Executive Vice President & Chief Financial Officer at Kirby, directs the company's overall financial strategy, capital allocation, and investor relations. Overseeing all financial planning, accounting, and treasury functions, Kumar ensures the fiscal integrity and strength of Kirby Corporation's extensive marine transportation and industrial services operations. This leadership role involves managing the financial aspects of the nation's largest inland and offshore tank barge fleets, as well as the financial performance of the Distribution and Services segment. Raj Kumar guides strategic financial decisions, including mergers, acquisitions, and capital investments, to support sustained growth and shareholder value. By maintaining rigorous financial discipline and providing insightful analysis, the Executive Vice President & Chief Financial Officer ensures Kirby's financial resilience and its capacity to fund ongoing operations and future expansion initiatives across all business segments.

Joshua Poling, the Vice President Chief Operating Officer at Kirby, oversees the day-to-day operational execution across the company's diverse business segments. This leadership position involves optimizing the efficiency and safety of Kirby's extensive marine transportation network, including its vast inland and offshore tank barge fleets. Poling also directs operational strategies for the Distribution and Services segment, ensuring seamless delivery of diesel engines, transmissions, and industrial equipment to various markets. Joshua Poling focuses on enhancing operational performance, implementing best practices, and driving continuous improvement initiatives throughout the organization. By ensuring smooth coordination between different departments and business units, the Vice President Chief Operating Officer supports Kirby's commitment to reliable service delivery and operational excellence in both its core marine transport and its specialized industrial distribution functions.

Christian O'Neil, the President & Chief Operating Officer at Kirby, drives the strategic operational direction and execution for the company's core marine transportation business. This pivotal role involves overseeing the management and expansion of Kirby's premier tank barge operations, ensuring the safe and efficient transport of bulk liquid products across the United States. O'Neil directs the optimization of the nation's largest inland and offshore tank barge fleets, focusing on logistical efficiency and regulatory compliance. Christian O'Neil also plays a key part in integrating new acquisitions and enhancing operational capabilities to meet evolving market demands. By leading the charge in operational excellence, the President & Chief Operating Officer ensures Kirby maintains its leadership position in the marine transportation sector, supporting critical industries such as petrochemicals and refined petroleum products.

John Hallmark, the President at Kirby, leads strategic initiatives and operational oversight for key segments of the company's industrial services portfolio. This role involves driving growth and performance within the Distribution and Services segment, which serves as a nationwide distributor and after-market service provider for diesel engines, transmissions, and related industrial equipment. John Hallmark focuses on expanding market reach and enhancing customer service across diverse sectors, including oilfield services, marine, and power generation. By fostering strong relationships with clients and suppliers, Hallmark ensures the segment's continued success in providing essential equipment and support. The President's leadership contributes significantly to Kirby's diversified business model, reinforcing its position as a comprehensive provider of industrial solutions and services.

Dorman Strahan, the President (Kirby Engine Systems) at Kirby, directs the strategic operations and business development for the company's engine systems division. This leadership position focuses on the distribution and after-market servicing of diesel engines, transmissions, reduction gears, and associated industrial equipment. Strahan oversees the segment's engagement with critical markets, including oilfield services, marine, power generation, and on-highway transportation. Dorman Strahan drives initiatives to enhance product offerings, expand service capabilities, and ensure customer satisfaction across the nationwide network. By championing innovation and operational efficiency within Kirby Engine Systems, Strahan strengthens the company's position as a leading provider of industrial equipment and support services, contributing to the overall success of Kirby's Distribution and Services segment.

Donald Mann, the President - ADDA and FDDA at Kirby, leads the strategic direction and operational management for these specialized divisions within the company's industrial services arm. This role involves overseeing the manufacturing and remanufacturing of critical equipment, including oilfield service equipment, power generation equipment, and specialized electrical distribution and control systems. Donald Mann focuses on driving innovation, ensuring product quality, and expanding the market presence of ADDA and FDDA. By managing complex production processes and supply chains, Mann ensures these divisions effectively meet the demanding requirements of their respective industrial clients. The President - ADDA and FDDA's leadership is crucial for maintaining Kirby's reputation for delivering high-capacity energy storage solutions and robust industrial equipment.

Scott Miller, the Vice President & Chief Information Officer at Kirby, architects and executes the company's comprehensive information technology strategy. Overseeing all aspects of digital infrastructure, cybersecurity, and data management, Miller ensures the seamless operation of technology across Kirby's diverse business units, including marine transportation and industrial services. This role involves driving innovation in IT solutions to enhance operational efficiency, support business intelligence, and safeguard sensitive company data. Scott Miller directs the implementation of advanced technological systems that underpin the company's extensive tank barge operations and its nationwide distribution network for industrial equipment. By fostering a culture of technological advancement, the Vice President & Chief Information Officer ensures Kirby remains agile and competitive in an increasingly digital landscape, supporting critical functions from logistics optimization to after-market service delivery and manufacturing processes.

Amy Husted, the Vice President, General Counsel & Secretary at Kirby, provides comprehensive legal counsel and oversees corporate governance for the company. This vital role involves managing all legal affairs, ensuring compliance with federal and state regulations across Kirby's marine transportation and industrial services operations. Husted advises the executive team and the Board of Directors on legal matters, risk management, and corporate strategy. Amy Husted plays a key part in structuring significant transactions, including mergers and acquisitions, and safeguarding the company's legal interests. By maintaining the highest standards of corporate governance and legal integrity, the Vice President, General Counsel & Secretary ensures Kirby operates ethically and effectively, supporting its mission to provide essential services while mitigating legal risks.