API Technologies, formerly Spectrum Control, is a leading supplier of RF/microwave, microelectronics, and security technologies for high-reliability applications. Their products are utilized in the defense, aerospace, medical/industrial, and communications/consumer industries.

API Technologies pioneers the development of RF/microwave, microelectronics, and security technologies to deliver top-tier performance for defense, commercial, and aerospace applications. Their customized components and systems guarantee high reliability at a wide range of temperatures, power capabilities, and security levels.

In June 2011, API Technologies Corp. completed its acquisition of Spectrum Control to enhance the roster of products they offer.