Lorenz Calibration, Inc.

Lorenz Calibration, Inc. is a family-owned, A2LA accredited (ISO/IEC 17025:2017, Certificate #3435.01) surface plate calibration laboratory based in Geneva, Illinois, serving manufacturers across the Midwest since 1981. Services include granite surface plate flatness calibration using the Moody Method, autocollimator repeat-reading calibration, and wet lap resurfacing to restore plates to Grade AA, A, or B tolerances. Both on-site and in-lab calibration available with NIST-traceable certification reports delivered digitally. Service areas include Chicago, Joliet, Rockford, Bloomington, Peoria, Decatur, and Champaign-Urbana in Illinois; Milwaukee, Madison, Green Bay, and Wausau in Wisconsin; Indianapolis, Fort Wayne, South Bend, and Elkhart in Indiana; Grand Rapids, Kalamazoo, and Lansing in Michigan; Toledo, Ohio; and Davenport, Iowa.