Nor-Cal Products, Inc. was incorporated in 1962 to serve the emerging vacuum industry. Nor-Cal Products' engineering and manufacturing expertise and commitment to excellence compliment and help to complete the Pfeiffer Vacuum products and services goals to be the one source global supplier for vacuum applications.
Advanced Test Concepts (ATC) is an Indianapolis based company founded in 1988. ATC is a leading supplier of precision industrial leak and flow test products and solutions based on ATC’s patented Micro-Flow technology. ATC currently serves multiple industries including the automotive, life sciences, and consumer electronic industries.