Integrating institutional theory's institutional isomorphism with integration and differentiation cultural views, the study examines the sources of variation in institutionally prescribed values in the field of Canadian National Sport Organizations. The results indicate support for the adaptation of institutional based values and norms among individual actors from both integration and differentiation perspectives. Specifically, results demonstrate institutionally prescribed values to be mostly monolithically adapted at the organizational level. However in spite of uniformity in most organizations as well as institution-wide strength, these values are also prone to be manifested distinctively around functional subgroups across the field. Implications of results for research on both institutional theory and culture are discussed.