The purpose of the present study is to develop a methodological proposal for improving the management of the innovation maturity for obtaining the level 3 of the Integrated Innovation Maturity Model (I2MM), considering an integrated methodological approach which includes the good management practices of the following management areas: (a) strategic management, (b) project management, (c) innovation models and innovation methods, (d) standards for innovation management, (e) knowledge management, and (f) financial management. As a result, MIM3 (the Methodology of Innovation Management for obtaining the level 3 of the I2MM in the organizations) is presented.