Calibration Laboratory
Process Instruments has provided instrument repair and test equipment calibration services since 1964. Process Instruments specializes in supporting Honeywell and Leeds and Northrup products. Process Instruments sells discontinued instrumentation by all major USA manufacturers, and both instruments and spare parts by Honeywell and L&N. Process Instruments designs, builds, installs and maintains control systems for all processes.
http://www.callab.net

Calserv Calibration Laboratory
Calserv: Temperature calibration products, Temperature calibration training, ukas accredited
http://www.calserv.co.uk

Temperature calibration and metrology equipment
ASL's range of temperature calibration and metrology equipment
http://www.aslltd.co.uk

Absolute Calibration
Absolute Calibration the leading independent calibration and repair laboroatory
http://www.absolute-cal.co.uk/

Instruments To Industry Ltd.
Manufacture, repair and calibration of pressure gauges, pressure switches, temperature instruments and flow meter calibration.
http://www.itiuk.com/

ASL Inc
Manufactures temperature metrology and calibration products
http://www.aslinc.com/

Temp-Cal Enterprises
Manufacture thermocouples and temperature calibration equipment.
http://www.tempcalenterprises.com

Temperature Data Systems
Sensitech is the leading provider of cold chain monitoring instruments, information and analysis that help to protect the freshness, efficacy and integrity of temperature-sensitive products.
http://www.temperaturedatasystems.com/

Gage-It, Inc.
Gage-It - Sales, repair, calibration & certification of pressure & temperature gauges including ITT Barton liquid level gages, sanitary gauges, thermowells & temperature regulators, backflow prevention test kits & dead weight testing assemblies.
http://www.gageitinc.com/

Hitek Calibration Services
Calibration Equipment and electronic testing services - HITEK Calibration
http://www.hitek.co.uk