42 Architecture and engineering in the field of planning of technical buildings in the nature of data centers; technological consultancy in the fields of energy optimization and energy efficiency; IT integration services; IT consultancy, advisory, and information services relating to the installation, maintenance, and repair of computer software; rental of computer hardware and data center facilities; provision in the nature of leasing of data center facilities; designing, developing, and technological consultation in the fields of infrastructure management, computer hardware and software for infrastructure management, computer hardware and software for environmental and security management; technological consultation in the field of asset management in the nature of information technology infrastructure and network operations, data center management, data center infrastructure management, data center operations and data center efficiency; design and development of computer hardware and software; product testing and quality control of goods in relation computer hardware, telecommunications apparatus, conduits and cables; industrial research services and industrial design in relation to computer hardware, refrigerating apparatus and apparatus for heating purposes, telecommunications apparatus, conduits and cables; civil infrastructure engineering services