Computer hardware; computer software; computers, computer hardware and software including apps for communications and telecommunications devices; communications and telecommunications devices; computer hardware and software for the management and administration of signalling in relation to transport

Building construction; advisory services relating to construction; installation services; construction consulting services; railway construction; installation and maintenance of rail signalling and control equipment and systems; construction, installation, maintenance and building of railways and rail signalling and control equipment; machinery installation; electrical engineering services (construction)

Civil engineering (design); Civil engineering design services; Civil engineering drawing services; Computer engineering; Computer engineering consultancy services; Computer software engineering; Design engineering; Design services relating to civil engineering; Electrical engineering services (design); Engineering; Engineering consultancy; Engineering design; Engineering drawing; Engineering feasibility studies; Engineering project management services; Engineering services relating to computer programming; Engineering surveying; Engineering surveys and inspections; Engineering testing; Mechanical engineering services (design); Preparation of engineering drawings; Preparation of engineering reports; Provision of engineering reports; Research, engineering and technical consultancy for industry; Software engineering; Structural engineering services (design); Technical engineering; Technological engineering analysis; Advisory services relating to computer software; Computer software advisory services; Computer software consultancy; Computer software design; Computer software development; Computer software programming services; Computer support services (computer hardware, software and peripherals advisory and information services); Computer support services (programming and software installation, repair and maintenance services); Consultancy in the design and development of computer software; Design and development of computer software (for others); Design of computer software; Development of computer software; Development of computer software application solutions; Development of software; Diagnosis of faults in computer software; Information technology (IT) services (computer hardware, software and peripherals design and technical consultancy); Installation and maintenance of computer software; Installation of computer software; Installation of middleware (software); Installation, repair and maintenance of middleware (software); Maintenance of computer software; Software creation; Updating of computer software; Upgrading of computer software; Writing of computer software

Civil engineering (design); Civil engineering design services; Civil engineering drawing services; Design engineering; Design services relating to civil engineering; Electrical engineering services (design); Engineering; Engineering consultancy; Engineering design; Engineering drawing; Engineering feasibility studies; Engineering project management services; Engineering surveying; Engineering surveys and inspections; Engineering testing; Mechanical engineering services (design); Preparation of engineering drawings; Preparation of engineering reports; Provision of engineering reports; Research, engineering and technical consultancy for industry; Structural engineering services (design); Technical engineering; Technological engineering analysis