Establishing criteria for knowledge management (KM) is important because criteria help to establish a basis for assessing the value and evaluating its results. Literature review has revealed that widely accepted criteria and performance measures have not been developed for KM. Delphi Technique and survey-based research, using a questionnaire targeting KM professionals as respondents, were aimed at establishing criteria for assessing KM success for different types of organizations. The results show what organizations consider important outcomes of a KM initiative. Contributions from this research effort should support government, non-profit, and for-profit organizations in making decisions about KM initiatives and measuring KM efforts. Future research efforts can focus on developing these KM outcomes into detailed measures.