This work presents the real case of the STRATEGIC ALLIANCE between two document storage service companies, which, sharing their strengths, managed to position themselves among the best companies in the sector. Here you will be able to appreciate step by step the process that allowed the concretization of this alliance.The formation of alliances is a very important option and a good alternative, since the new reality of competition in world markets makes them necessary. Companies need to share costs, skills and access to markets; therefore, managers must learn to manage competitive cooperation relationships with both domestic and foreign companies.