KIRBY CORP

Kirby Corporation operates as the nation's largest domestic tank barge operator, providing marine transportation services and distribution and services solutions across the United States. The company trades on the New York Stock Exchange under the ticker symbol KEX and maintains its principal executive office in Houston, Texas. More information about the company is available at http://www.kirbycorp.com.

The company operates through two primary reportable segments: marine transportation and distribution and services. The marine transportation segment, known as KMT, transports bulk liquid products including petrochemicals, black oil, refined petroleum products, and agricultural chemicals throughout the Mississippi River System, the Gulf Intracoastal Waterway, and along all three United States coasts. As of December 31, 2025, KMT operated 1,105 inland tank barges with 24.5 million barrels of capacity, 28 coastal tank barges with 2.9 million barrels of capacity, and an average of 266 inland towboats and 24 coastal tugboats during the fourth quarter of 2025. The marine transportation segment also operates offshore dry-bulk cargo barges and tugboats for United States coastal trade. During 2025, the inland marine transportation operation moved over 55 million tons of liquid cargo on United States inland waterways.

The distribution and services segment, known as KDS, provides equipment, aftermarket parts, and services for power generation systems, engines, transmissions, reduction gears, electric motors, and specialized electrical distribution and control systems used across power generation, marine, on-highway, oilfield services, and other industrial applications. KDS operates through a network of 62 branch locations across 16 states and Colombia, South America. The segment manufactures and remanufactures specialized equipment including pressure pumping units, electric fracturing systems, and power generation equipment. KDS also rents generators, industrial compressors, lift trucks, construction equipment, and refrigeration trailers.

The company employs approximately 5,233 people, the large majority of whom are based in the United States. The marine transportation segment represented the larger portion of revenues, while distribution and services contributed significantly to overall company performance. Kirby's competitive advantages include its extensive fleet capacity, proprietary vessel management systems, established customer relationships, and diversified service capabilities across multiple industrial markets.