The system enables managing investment processes viewed from the perspective of the investor or the contractor. The investment is modeled as the investment project that is composed of investment tasks and can be part of another project – the master project. The information on the parties involved in the task or the project and their responsible representatives is handled. The project or task is managed by managing its schedule and status information and handling project-related documents (specification, permissions, reports) and multimedia information (pictures, videos). The surveys reviewing the state of the project or task can be conducted with surveys freely defined. The services allow for managing project and task data, concerning, in particular, parties, status and documents, and conducting project review surveys.