Feasibility study: estimation of the cost of a construction at the pre-project stage. Assess your economic opportunity. Programming: draw up the "financial envelope" that the public or private contracting authority will decide to allocate to the works. Design studies: participate in the technical description of the works and in the elaboration of the final financial estimates of the works, draw up the price quotation of the construction company. Works: Participate in the control of the construction site costs and carry out the financial control of the follow-up of the realization. Commercial action: develop relations and commercial approaches with all the players in the sector. To provide advice to its interlocutors. Communication: training and information actions on construction projects.