The main aim of this paper is to discover the most suitable knowledge management (KM) activities of Multimedia Super Corridor-status organisations in Malaysia (MSC Malaysia companies) in their respective situation in achieving competitive advanatge. Various KM activities from past researches since 1990 were reviewed and investigated. 25,932 articles were found using a keyword index search of "knowledge management" in the ProQuest Central online database. After topic filtering, there were only 30 articles were related to the "knowledge management activities". Based on these related topics of the 30 articles, this paper determines there are four KM activities in achieving organisational competitive advanatge: knowledge creation, storage, sharing and utilisation. These four KM activites were then empirically tested and verified using primary data collected from 600 MSC Malaysia Companies.