Subsea compressors is a new compressor line for subsea applications - the Blue-C™. It is the heart of the subsea centrifugal compressor module, which can handle natural gas at pressures as high as 130 bars. The concept of our new subsea compressor was validated through the refurbishment and test of an 850 KW experimental unit, originally developed in 1992, to identify technology gaps. We then began to design and build new-generation units based on 2.5 and 5.0 MW drivers. The module consists of three main components arranged vertically: the centrifugal compressor, planetary gearbox and variable speed electric motor. A separator can also be included. Since all of the components are pressurized at the compressor suction pressure, Blue-C does not need dry gas or oil seals. The only sealing system used on the end of the compressor is the labyrinth seal system, to avoid oil migration. Their applications are gas boosting & reinjection.