Keysight Technologies makes electronic test and measurement equipment used by engineers to design and validate electronics, wireless communications systems and semiconductors before they go into production. Its instruments help chip designers, telecom equipment makers and aerospace and defense companies verify that their products actually work as intended and meet required specifications, a critical step before expensive manufacturing begins. The company was spun off from Agilent Technologies to focus specifically on electronic test and measurement, separate from Agilent's life sciences and chemical analysis instruments business. Keysight's revenue is tied to research and development spending across the technology, telecom, automotive and aerospace industries, since new product development in those industries typically requires the testing and validation equipment Keysight provides.