Indonesia is home to various marketplace sites such as Lazada, Bukalapak, and Tokopedia. The tight competition between marketplace sites encourages businesspeople to innovate in creating a new marketplace that is safe, comfortable and innovative. One innovative that can be done is of a system of cooperation with suppliers. Based on this background company trying to make an online pplication marketplace with a system of cooperation in a lease, or a combination of the rental fee and the fee. This application is expected to create security in the process of buying and selling as well as it can compete with the existing marketplace. The whole process of the transaction, the complaint and the ad would also be integrated into the system, thereby reducing the risk of human error. Overall the application complies with the requirements of the company. In addition to getting the ease in getting customers, suppliers also feel the ease and safety in working in company