Precision Measurement Excellence Since 1946
Keithley® stands as a globally recognized leader in high-precision electronic measurement and test equipment. Now part of the Tektronix family, Keithley continues to serve research institutions, semiconductor manufacturers, and advanced technology sectors worldwide with innovative solutions that push the boundaries of measurement science.

Heritage of Innovation
Throughout the decades, the brand evolved from developing electrometers and picoammeters to creating comprehensive semiconductor test systems. The 2010 acquisition by Danaher and integration into Tektronix strengthened Keithley's position as the industry standard for low-level measurement solutions in nanotechnology and materials research.

Empowering Scientific Discovery
Today, Keithley's SourceMeter® units, digital multimeters, and semiconductor parameter analyzers enable breakthrough discoveries across multiple industries. Keithley serves scientists, engineers, and researchers who demand precision in semiconductor manufacturing, battery technology, photovoltaics, and advanced materials development worldwide.