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Ranken Surveying Instrument Service, Inc. provides calibration and repair services for surveying instruments, specializing in calibrations of construction auto levels, lasers, theodolites, and total stations. They are an authorized Spectra Precision Factory Service Center and offer sales, service, and rentals of construction survey instruments with traceable NIST-certified calibration. In-store inspection and calibration of new instruments prior to sale are performed at their Seattle, Washington location.
AI named Ranken Surveying Instrument Service from December 2025 to January 2026.