Boart Longyear diamond drilling firm; Brainard-Kilman, a maker of civil engineering devices, such as well monitoring and test equipment; and ChemGrout a mfg of cement grouting equipment. Longyear acquired Slope Indicator Company, the nation's largest producer of geotechnical instruments, and Northern Air Supply in 1988, followed by the Campbell Pacific Division in 1989 and WTD Environmental Drilling in 1990. Then in 1994, North Star Drilling Company, specializing in sonic drilling was acquired. On January 2, 1995, Boart International and the Longyear Company officially merged into a single company and changed its name to Boart Longyear Limited. At this point the two companies
Boart Longyear adopted the new logo and corporate colors. Most of Boart Longyear's employees and revenues in the mid-1990s came from international operations. Operations in the United States employed about 1,000 people and accounted for about $130 million in sales, a relatively small part of the firm's 8,000 employees and over $600 million in annual revenues worldwide. With diverse products and services and decades of international experience, the Boart Longyear Company seemed well prepared to enter the new century. Despite ownership by Anglo American for more than 30 years, Boart Longyear was considered a non-core asset for the Johannesburg based mining company.