BS21 is a part of Gainta, a company based in Tokyo, Japan. It is a software development company that specializes in designing and creating applications for business, as well as providing web-related services. Its primary services include: application, website, development, customer support, and IT services. The BS21 division specializes in developing business solutions for large-scale enterprises, developing custom software solutions tailored specifically to fit customer's needs, and website and application development. The company also provides IT infrastructure and system maintenance services, allowing customers to build, monitor, and manage large-scale systems.