Pacific Blowers, USA
Pfeiffer Vacuum
PICO, an MKS Instruments, trademark.
PINK GmbH Vakuumtechnik, Germany
PLANSEE SE, Austria
PNEUMOFORE Vacuum, Italy
POLO Srl, Italy
PPI PUMPS PVT. LTD., India
Quicksilver Engineering Ltd., United Kingdom
QUORUM TECHNOLOGIES LTD, United Kingdom