The development of a CSR capability maturity model to assess an organization's CSR performance, based on the actions and expectations that are given by the ISO26000 guideline. The research includes a study to view CSR as an organizational innovation, which has been established theoretically and validated through interviews. The development of the CSR capability maturity model first starts with the development of a CSR maturity model. The maturity model has been validated through a session of interviews and a questionnaire. A qualitative study categorizes all CSR actions and expectations from the ISO26000 guideline into the maturity model, transforming the maturity model into the CSR capability maturity model. The CSR capability maturity model has then been tested in a case study research on one organization.