Open Source Software (OSS) is the software of which source code is open to public, and then the users can study and improve them corresponding to the application and market needs. This study conducted the questionnaire survey to IT companies in Japan, and based on the data, the authors explored the relationship between business growth measures and the utilization and contribution to the developers' community. The number of years since company inauguration and business fields affects the business growth the most, but at the same time, we also found some interesting significant variables affecting the business growth, such as the utilization of Linux and contribution of Apache. We will present these research results and implications.