Agilent Technologies's population is 18,700.

Agilent Technologies was created in 1999.

It is a bit unclear how Agilent tests their equipment. Agilent makes testing equipment for digital devices, and such it is reasonable to believe that they have their own testing equipment used to test their own devices before selling.

Tektronics and Agilent (Agilent Technologies, a spin-off of Hewlett Packard) are top notch, but there are others.

Agilent Technologies was founded in 1999 when HP took several product lines not directly related to computing and formed a new company. Agilent's main focus is manufacturing test and measurement products like oscilloscopes and spectrometers.