Tesco Corporation was an oilfield services company based in Houston, Texas, specializing in top drive rental services and casing running services for land and offshore oil platforms. Founded in 1993 through the merger of several companies, Tesco became publicly traded and expanded its operations internationally, including a sales office in Beijing.

The company provided essential services for drilling operations, focusing on efficient and reliable top drive systems and casing solutions. Tesco developed various technologies, including automated catwalk technology, and received recognition for its engineering achievements. In 2017, Tesco Corporation was acquired by Nabors Industries, concluding its independent operations while continuing to serve the oil and gas industry.