MtronPTI is proud to be recognized by our clients as a supplier of quality timing and frequency control devices. Supporting this experience, MtronPTI actively seeks approval for design, manufacturing and management methods offered by industry groups. All three MtronPTI design and manufacturing sites are ISO9001:2008 certified. In 2012 MtronPTI achieved AS9100 Rev. C for aerospace oscillator design and manufacture in Yankton, SD. Orlando received its AS9100 Rev. C certification for custom filter, crystal oscillator and precision resonator products in June of 2013.