The constant evolution, development of technology and related economic aspects entail a periodic need to upgrade or completely replace the software and hardware platform of the systems used. ONT Solutions makes an effort to meet these challenges and offers its clients a wide range of services in the area where high quality is the result of many years of experience of our specialists. We are able to carry out an efficient migration between different virtualization platforms, operating systems, database systems and application servers. We thoroughly analyze each of these undertakings and considering the high degree of complexity of the migration process itself before the beginning of the technical works we inform our clients about any risks and potential problems related to this.