O'Neal is a construction and engineering company that provides design, construction, and maintenance services to a variety of industries, including chemicals, life sciences, manufacturing, and power. The company was founded in 1975 and is headquartered in Columbia, South Carolina. O'Neal's services include project management, engineering, procurement, and construction. The company's mission is to help its clients achieve their goals by providing high-quality, cost-effective solutions that are tailored to their specific needs. O'Neal has completed projects in over 30 countries around the world and has a reputation for delivering projects on time and on budget.