Founded in 1980, T H Hill is a global provider of quality assurance and control, engineering, and training solutions designed to reduce the risk of structural & mechanical failure of drilling equipment used in some of the world’s deepest and most challenging oil & gas wells. Although based in Houston, we provide services in most all major drilling regions of the world. As the author of DS-1™, and the industry leader in the provision of quality assurance and control for down hole drilling tools, T H Hill’s project management, engineering, and technician staff join forces to reduce rig non-productive time and related customer costs. As the eyes and ears of companies such as Chevron, our team supports operations in vendor shops and at rig sites ensuring the complex specialty tools used in drilling operations are inspected, assembled, and tested to exacting specifications. T H Hill is committed to providing the highest quality and most innovative solutions across all of its service lines.