Precision Metrology - Milwaukee, WI (Serving Illinois)
Distributor, Service Company
Woman-owned ISO 9001:2008 & ISO/IEC 17025 certified. Calibrating services for optical products including comparators & flats. Calibration services for dimensional gages & equipment, geometric & reference devices, paint test equipment, sand strength & foundry equipment & torque, force, pressure & weights are also available. Calibration services are traceable to NIST. A2LA accredited.
Brand Names: CDI, Dorsey, SPI, Starrett, Wisconsin
www.precisionmetrology.com/Dimensional.asp

Tru Cal International - Bensenville, IL
Distributor, Service Company
ISO 9001:2008 & ISO/IEC 17025:2005 certified. Calibrating services for fiber optical instruments including attenuators, spectrum analyzers, lasers sources, power sensors, wavelength meters & DMM's. Capabilities include test equipment & instrument testing, repair, rental, leasing, buying & selling. Meets ANSI/NCSL Z540-1-1994 standards.

Davis/Inotek - Bensenville, IL
Distributor, Manufacturer, Custom Manufacturer
100,000 Test, Measurement, Process & Control Instruments. NIST Traceable Calibration & Certification, All Performed In Compliance With ISO-9002, ISO Guide 25-17025 Standards. A Complete Line Of High-End Used & Rental Test Equipment

The Calibration Solution - Machesney Park, IL
Distributor, Service Company
Calibrating services for optical comparators, torque wrenches and durometers. Capabilities include data management, repair, hardness testing and surface plating.