The project Enhanced Situational Awareness to Improve Maritime Safety in the Baltic (BONUS ESABALT) studies the feasibility of data crowdsourcing among marine stakeholders in the Baltic Sea for enhancing maritime safety. This paper describes the system architecture, and by use of practical maritime scenarios demonstrates the system utility. These scenarios are categorized under maritime safety, intelligent navigation, and environmental monitoring with cross‐border cross‐sector operability. The paper also summarizes the validation campaign performed onboard Viking Line's cruise ship M/S Amorella, operating between Turku and Stockholm. Analysis of the vessel‐generated data and end‐user requirements recorded during this voyage is expected to enable distillation of the most critical information for crowdsourcing in the maritime scenario. Finally, the paper compares the BONUS ESABALT project with the state‐of‐the‐art and provides the estimated economic and policy impact of the proposed system in the Baltic Sea Region. Copyright © 2016 Institute of Navigation