Computer hardware for use in augmented reality projections; augmented reality glasses being virtual reality glasses and virtual reality headsets, and augmented reality glasses with optical position tracking apparatus for use in the validation of as-built construction models on a construction site; optical position tracking apparatus, namely, electronic devices for locating and tracking people or users in a tracked space using light or infrared technology; augmented reality software for use in mobile devices for integrating electronic data with real world environments for the purpose of viewing virtual 3D models in a factory or on a construction site; augmented reality software for integrating electronic data, specifically electronic building information model data, with real world environments, namely, real world construction sites; optical position tracking software for tracking people for use with virtual reality glasses and headsets; surveying apparatus and instruments; surveying and engineering apparatus, tools, and instruments, namely, apparatus and instruments for measuring and setting out a construction site; protective helmets; protective helmets, namely, builders' helmets incorporating one or more position detection sensors; protective helmets incorporating an augmented reality display, specifically augmented reality glasses

Engineering surveying services and engineering services; construction site engineering and surveying services; engineering and construction site surveying services, namely, construction site setting out services; consultancy in the field of engineering and construction site surveying relating to setting out a construction site