Companies / C / Call & Nicholas, Inc.
Call & Nicholas, Inc.
Manufacturer · Tucson, AZ
About Call & Nicholas, Inc.
Call & Nicholas, Inc. (CNI) is a 100% employee-owned geotechnical engineering and hydrogeology consulting firm founded in 1979, headquartered in Tucson, AZ. Specializes in open-pit slope stability analysis, underground rock mechanics, ground support design, hydrogeology (pit dewatering, groundwater modeling), geomechanical laboratory testing, and borehole instrumentation. Related entity Call & Nicholas Instruments, Inc. manufactures the SlideMinder automated slope monitoring and warning system — a wireline extensometer that continuously measures slope displacement and velocity with 0.01mm resolution, using 900 MHz radio/Wi-Fi telemetry and real-time alarm capability. Serves global mining, open-pit, and underground mining industries. Geotechnical instruments, slope monitoring systems, wireline extensometers, slope stability instrumentation, mining geotechnical consulting.
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