Engineering services in the field of mechanical engineering; electrical engineering; plumbing engineering; energy engineering; energy auditing; certified geo-exchange design; mechanical engineering design; computer modeling services; fire protection engineering; engineering surveying; environmental engineering, testing and inspection services; environmental services, namely, technical consultation in the field of environmental science; engineering services and design for others in the field of environmental engineering; environmental services, namely, design for others in the field of environmental engineering; civil engineering for the design of energy efficient work and living spaces; computer-aided engineering services for others; conducting feasibility studies in the field of environmental engineering; consulting in the fields of engineering and architecture and mechanical engineering; engineering services for building and property condition assessment; engineering services in the field of environmental compliance; engineering services in the field of energy efficiency; engineering services in the field of reducing carbon dioxide emissions; engineering services in the field of reducing fuel consumption; engineering services in the field of reduction of operating costs and increasing government credits in the field of energy efficiency