Robertson Geo is the pioneer developer of slim-hole, digital borehole logging systems and techniques. As the largest global supplier of wireline conveyed, slim-hole logging equipment, Robertson Geo designs and manufactures logging instrumentation, and provides onsite logging services to every continent, with extensive field experience in the geotechnical, mining, water, environmental and hydrocarbon sectors. Robertson Geo headquarters in North Wales house the design, development and main assembly facility, with an on-site test borehole, calibration blocks, ovens and autoclaves, for product quality control.

Since 1985 LIM has been recognized internationally as a specialist in instrumentation and measurement, whether during or after drilling (drilling instrumentation and borehole logging). In terms of INSTRUMENTATION which is its core historical business, LIM SAS offers a wide range of data loggers whether for drilling parameters, in-situ geotechnical tests (Pressuremeter, Penetration tests, Lugeon packer tests) and special foundations processes such as low pressure grouting, jet grouting and bored piles. LIM SAS recently completed its range of data loggers with equipment allowing borehole deviation measurement and high precision GPS navigation (RTK) for drilling rigs. Thanks to its GEO-LOG 4 cloud based software, LIM offers a solution that automatically transfers and preprocesses data recorded on site. In terms of geophysical BOREHOLE LOGGING, LIM LOGGING, which is the result of the acquisition by LIM of Electromind in 2017, now offers a very complete range of logging probes. At the international reputation level, the OPTV and BHTV televiewers from LIM LOGGING are unanimously considered to be the benchmark products on the market.