Stewart & Stevenson is a private manufacturing and distribution company based in Houston, Texas, founded in 1902. The company specializes in designing, manufacturing, and servicing engines, specialized engine-based equipment, and wheeled vehicles for various industries, including oil and gas, marine, construction, power generation, transportation, mining, and agriculture.

The company has a rich history, starting as a blacksmith and carriage shop and evolving into a major distributor of customized diesel engines and truck bodies. Its offerings include power systems and engines, specialized vehicles and equipment, and rental, parts, and service support. Stewart & Stevenson serves a diverse customer base, including oil and gas companies, airlines, military sectors, and construction firms, focusing on reliability and innovation in its products.

With leadership that emphasizes operational excellence, Stewart & Stevenson continues to provide critical equipment and services to heavy industries worldwide, backed by over a century of engineering and manufacturing expertise.