Founded in 2000, IONTOF USA is the U.S. subsidiary of German instrument maker IONTOF, supplying surface-analysis systems based on time-of-flight secondary ion mass spectrometry and low-energy ion scattering. Based in Chestnut Ridge, New York, it supports American customers through a nationwide network of trained service engineers and works with Tascon USA on analytical services. Its instruments are used to study material surfaces in industrial and academic research.