Welcome

4Esys NV is the dedicated European market driver providing tailored modular systems for application specific electrochemical energy storage and power delivery solutions for heavy duty applications.

The company name refers to the 4E benefits (Economy, Ecology, Efficiency, Energy), the ES (Energy Storage) activity and our unique SYStem approach.
Phonetically 4ESYS is pronounced as phoresis which is the scientific terminology for transportation symbiosis and this reflects our core applications system solution.