The American group Ametek is going from strength to strength in the world of instrumentation. It has just acquired Crystal Engineering, a small Californian company specializing in portable pressure calibrators for industrial markets (oil & gas, energy, etc.). In this field, Ametek already had the Jofra (represented in France by Dimelco).
In the world of instrumentation, Ametek also owns the Solartron, Lloyd Instruments, Land, Taylor Hobson and Spectro.
Learn more: https://www.ametek.fr/