Holding company services, namely, providing business management and business administration services for subsidiaries of the holding company engaged in infrastructure, engineering and design, construction and construction management, program management, and planning; project management services for others for business purposes in the fields of architecture and urban planning design; business advisory services in the fields of architecture and urban planning design; business management services, namely, providing business management information and consultation services in regards to asset management, strategic development and implementation in the field of structural engineering, information management, defense, security, training, namely, infrastructure security and risk management, technology transfer, civil engineering and transportation accounting audits; economic feasibility studies; arranging and conducting business conferences in the field of structural and civil engineering

Consulting services for the construction of municipal infrastructure facilities; building construction for civil infrastructure projects; construction of civil engineering structures; construction services, namely, planning, laying out and construction of residential and commercial buildings and communities; construction management; construction project management services; construction services, namely, providing construction information and consultation services in regards to construction of buildings, roads, highways, bridges, heritage bridges, dams, waste water and drainage, sewerage treatment plants, railways, transmission lines, resorts and marinas, grandstands, earth retaining structures, maritime engineering structures, structures and foundations for mining and heavy industry; construction, repair and installation services auxiliary to constructions, consulting, civil and environmental engineering; project management and consultation services for construction supervision; construction planning of transportation projects; land development services, namely, planning and laying out of residential and/or commercial communities

Planning of buildings and infrastructure systems for buildings; engineering services for the construction of municipal infrastructure facilities; municipal infrastructure design services; civil infrastructure design services; civil infrastructure engineering services; civil engineering drawing services; professional consulting services in the fields of engineering, land use planning, surveying, and environmental sciences; engineering design services; engineering drawing services; consulting in the field of engineering; consulting in the fields of engineering and architecture; engineering services for building and property condition assessment; environmental services, namely, design for others in the field of environmental engineering; technical consulting in the field of environmental engineering; architectural and engineering services; urban planning; consulting services in the field of environmental assessment and planning; land use planning services; transit planning services; urban design planning services; advisory services for others in the field of urban planning design; sustainable urban planning services; engineering services, namely, providing engineering information and consultation services in regards to remedial and civil engineering projects; urban development and geotechnical engineering; environmental and natural resources engineering; structural engineering; traffic engineering; railway engineering; engineering design; engineering drawings services; design and development of computer software for hydrology methods, storm water design, modeling of irrigation systems, drainage systems, urban drainage systems, namely, sewers, design of culverts; planning services for urban living development; design studies of the feasibility integrated urban water cycle; engineering services for defense and security, namely, infrastructure security and risk management and consulting services related thereof; engineering; engineering and habitat restoration design services in the field of wetland preservation; engineering and hydrological design of restoration of stream channels, marshes, estuaries, and wetlands; engineering design services; engineering services in the field of environmental compliance; engineering services in the fields of traffic and transportation; engineering surveying; civil engineering; conducting feasibility studies in the field of environmental engineering; consulting in the field of structural engineering; environmental engineering, testing and inspection services; environmental services, namely, design for others in the field of environmental engineering; environmental services, namely, technical consultation in the field of environmental science, engineering services and design for others in the field of environmental engineering; geoenvironmental engineering; geotechnical engineering; hydraulic engineering and design; hydrologic engineering services; structural engineering design services; surveying and engineering; traffic and transportation engineering; architectural services; architectural design services, including mechanical, electrical and plumbing plans; landscape architectural design; engineering services in the fields of energy efficiency, and hydrologic and hydraulic modeling of stormwater drainage and wastewater infrastructure; land use planning services; traffic and transportation planning services; mapping services; land and road surveying; geological, topographical, and engineering surveying