Keithley Instruments, Inc. has been designing and manufacturing precision instrumentation since 1946. Today, Keithley is a
world leader in providing hardware and software solutions for electronic test and measurement, data acquisition, medical
equipment manufacturers and semiconductor characterization.
Keithley Instruments, Inc. is a world leader in precision
electrical measuring instruments. The company specializes in equipment that accurately makes extremely low level electrical
measurements for research, design engineering,and production test applications in a wide range of electronics industries.
Keithley Instruments Common Shares are traded on the NYSE exchange under the symbol KEI.