The aim of this study is to investigate the effectiveness of the internal communication, as a dimension of internal marketing, in a global multicultural company. The study was based on a conceptual model that is a miscellany of theoretical concepts of how to create effective internal marketing communication for global organizations. Through the investigation of the company referred to as Alpha, a quantitative study across six countries was conducted to further the knowledge on how to address the needs of internal customers and adjust the internal marketing strategy thereafter. A questionnaire was sent to a random sample, with a response rate of 215 employees that together reflected the total population of 2831. Through the usage of ANOVAs, the findings displayed significant differences of how the employees in all countries perceived the internal communication at Alpha. The study also compared differences within two countries where there was enough data to investigate differences between categories of employees, these results were not significant. In general, it can be said that the results were grouped by the differences of the three European countries against the three non-European countries. Another prominent finding was that China was separated from the other countries, this was also the instance collectively shown for Sweden and Finland as they were often grouped together. The implications are that possible differences in business culture may have affected these results, which further studies need to investigate. The results jointly report that the internal customers are not satisfied with the internal communication. The conclusion is that the needs of the employees at Alpha should be addressed much further, as a part of the company internal marketing communication strategy.