It operates through three segments: Scientific Instruments, Vacuum Technologies, and Electronics Manufacturing.
The Scientific Instruments segment offers chromatography, optical spectroscopy, mass spectroscopy, dissolution testing, nuclear magnetic resonance equipment, and consumable laboratory supplies for a range of life science and chemical analysis applications, which require identification, quantification, and analysis of the elemental, molecular, physical, or biological composition or structure of liquids, solids, or gases.
The Vacuum Technologies segment provides a range of products used to create, control, measure, and test vacuum environments in life science, industrial, research, semiconductor, and scientific applications.
Its products include diffusion, turbomolecular, and ion getter vacuum pumps; rotary vane, sorption, and dry scroll vacuum pumps; vacuum control instruments, sensor gauges, and meters; valves, flanges, other mechanical hardware, and helium mass spectrometry and helium-sensing leak detection equipment.
These products are used in various applications, including manufacture of flat-panel displays, television tubes, decorative coating, and semiconductors; life sciences applications; food packaging; testing of aircraft components; and high-energy physics research.
The Electronics Manufacturing segment is a contract manufacturer of electronic assemblies and subsystems, which include printed circuit boards for original equipment manufacturers.
The company markets its products through sales and distribution organizations, independent distributors, and sales representatives.
Varian was established in 1999 and is headquartered in Palo Alto, California.

