This paper summarizes academic literature on Internet banking drivers and found that there is a need to conduct research on corporate customer Internet banking adoption behaviour. The empirical data were collected from a questionnaire survey of 223 business firms selected from the telephone directory in Klang Valley area in Malaysia. This study examines the relationship between Internet banking adoption and its six factors, namely awareness, ease of use, security, cost, reluctance to change and accessibility. The results of this study show that four factors examined are significantly important to the adoption of Internet banking. However, perceive ease of use and reluctant to change are found to be insignificant in determining its adoption. This study provides insightful understanding of corporate customer's perception about Internet banking adoption in their banking transactions. Banks are interested in promoting online business may find these findings helpful in guiding their efforts.