What method is adopted by outsourcing companies for accomplishing 3D structural modeling projects? The companies which outsource architectural and engineering solutions to clients use a very systematic approach for the execution of Building Information Modeling services. Today outsourcing companies are executing BIM modeling services in large numbers which are rightly the major source of revenue generation for them. In other words due to the extensive demand for BIM services in the market, AEC firms are generating a large part of their revenue from them. When it comes to the executions of 3D structural modeling services which are quite essential for the successful development of structure, general contractors have to approach a structural engineering company which consists of competent team of 3D modelers, experienced structural engineers who sometimes work as project manager and detailers etc. The fact remains that 3D structural modeling services are wholeheartedly executed by BIM modelers in the guidance of experienced structural engineers, hence clients must find such a outsourcing company which whose staff is highly experienced and trained. When a good service providing partner is identified by clients they can send a project enquiry about the execution of 3D structural modeling services. The project enquiries are generally accessed by operations team of the service providing company who then share it with the technical team after which the senior structural engineer verifies it. If the technical team feels that 3D structural modeling project can be easily executed by them the company gets back to the clients and asks them to send the specifications. All the required specifications which are needed for the development of 3D structural model are immediately provided to the company by clients. The clients clearly mention in the specifications what kinds of details are required to be modeled by them in the model. By using required instructions, specifications and structural plans etc, which are sent by clients BIM technicians develop 3D structural model in Revit Structure. The structural model developed by modelers is strictly reviewed by structural engineers before it is delivered to the clients. Any kinds of mistakes identified by structural engineer in the model are effectively sorted out before dispatching it to clients.