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 new technology to the industry, drilling products include a heli-portable surface drill with integrated rod handling, patented surface set bit technology and patented spearpoint design for the corebarrel head assembly. In 2011, Boart Longyear reached record revenue of $2 billion. In late 2012, CEO Craig Kipp resigned amidst slowdowns in mineral business and capital expenditure revisions, leading market to believe further deterioration of Boart's revenue is expected. Boart Longyear chairman David McLemore stepped in as acting CEO. Longtime Chief Financial Officer, Joseph Ragan, has recently resigned as well. adding to the deep changes at Boart's leadership level in recent months.