CMC competence is critical in communicating and collaborating in an organization that utilizes online collaborative communication tools. Using Spitzberg’s CMC Competence Theory (2006), this thesis look into the relationship between the user’s context-based CMC competence and how it is related to the competency outcomes when using online collaborative communication tools. Data was collected from a sample of 583 Filipino employees of Reed Elsevier Philippines. Structural equation modelling was used to test the hypotheses derived from the CMC competence theory which explains that any behavioral phenomenon can be understood as a function of five primary theoretical domains: context, motivation, knowledge, skills, and outcomes. Based on the findings, the study concludes that a) age affects the Filipinos ability to display composure as a CMC interactant; b) Filipinos have the ability to integrate non-mediated skills in a mediated setting through their motivation, knowledge, and skills; c) Filipino employees are able to apply high level of media efficacy, interaction, and choice in communicating and collaborating online; d) Filipino employees’ possession of higher CMC competence to utilize online collaborative communication tools translated to excellent competency outcomes in communicating and collaborating online; and e) Filipinos media selection generated a perception of effectiveness, appropriateness, satisfaction, and productivity/efficiency in using online communication tools.