Precision Measurements Corporation http://www.calibrationlab.com/
Provides calibration and repair services thermocouples, thermometers, thermocouple calibrators, humidity indicators, pressure and vacuum gages, dead weight testers and balances. In short for almost any lab equipment you might have.
Ravika http://www.ravika.com/
Manufacturer of Dead Weight Pressure Gauge Testers. Pressure and Vacuum gauge Calibrators, Precision Dead Weight Pressure Gauge Testers, Gauge Comparators, pressure and vacuum gauges and calibration.
Thermo Gauge Instruments http://www.thermogauge.com/
Producing precision Blackbody sources for the calibration of optical pyrometers, ir thermometers, thermocouples, fiber optic temperature sensors and heat flux gauges.
TIC-MS http://www.ticms.com
Electrical, electronic, mechanical, and physical/dimensional calibration services.