A successful startup business must be efficient in developing its diversification and innovation for market. Every business owner has think about and effective management system to grow the business successfully. It is important to know what challenges the startup faced to avoid some troubles. This purpose of this research is considering some factors about how to make a startup business growth successful. For gaining enough information, this research will use secondary research to collect some materials related to this research. Many factors need to be consider, including diversification, innovation, effective management system, sales, costs control, promotion,after sales and investment. Hamilton is a startup business and will be an example of this research. The researcher will analyse the advantages and weakness of Hamilton, combining with some theory frameworks, in order to offering a more innovative and strategic structure for the future growth of Hamilton. On the other hand, the leader of Hamilton have to motivate people and ensure employees to follow the business through the uncertain business development, usually where business members are required to sacrifice a lot of things such as life balance, salaries and so forth. Finally, there are some recommendation will be provided to help the startup become better.