Nuclear design, engineering, manufacturing, installation, and commissioning throughout the globe. Gravatom Engineering Systems Limited. Supplying engineering, manufacturing, installation, commissioning and nuclear design services around the world. Gravatom offers a comprehensive, fully-integrated engineering and manufacturing service including specification, design, manufacture, installation and validation of sub and full assembly equipment. Our expertise derives from more than 30 years' experience of developing engineering, manufacturing, installation, commissioning and nuclear design solutions for clients worldwide.