Scientific Drilling International (SDI) is a leading provider of high accuracy wellbore navigation and drilling solutions. The company designs, manufactures, and sells measurement-while-drilling (MWD) systems, directional drilling services, and other drilling-related products and services. SDI's technologies are used in oil and gas exploration and production activities around the world. The company has a strong reputation for innovation and has been awarded numerous patents for its technologies. SDI was founded in 1969 and is headquartered in Houston, Texas.