Engineering; engineering design for others; engineering design for others of office buildings; engineering design for others of mass transit projects; engineering design for others of airports; consulting services in the field of engineering; construction and program management services for others; technology and software consulting services not limited to GIS/Geospatial, Asset Management, BIM, CAD and Systems Integration; design, development, and implementation of software for tracking of customers and assets, and for analytics using the data which results from such tracking; design, development, and implementation of software for mobile phones, tablets, handheld computers, and personal computing devices, namely, software for navigating through public spaces and for providing information on local amenities and services; Software as a Service (SAAS) featuring software for tracking of customers and assets, and for analytics using the data which results from such tracking not related to cybersecurity, network or security intelligence; Software as a Service (SAAS) featuring software for navigating through public spaces and for providing information on local amenities and services not related to cybersecurity, network or security intelligence; business project management services; maintenance of fire detection and suppression systems, HVAC systems, smoke evacuation systems, lighting and electrical systems, security and alarm systems, and baggage handling systems