UN has described marine pollution as the fastest-growing environmental problem in the world. Estimated between 4,8 and 12,7 million tons of plastic waste currently enters the ocean every year, the equivalent of a truckload every minute throughout the year. When the plastic waste reaches the seas, up to 94 percent (WWF, 2018) will sink to the seabed and break down to micro-plastic particles over a longer period of time. Therefore, it is essential to take measures to prevent the inflow of plastic waste before it reaches the open oceans.Clean Sea Solutions was founded on the idea of developing commercially and environmentally sustainable tech solutions for waterfront areas to prevent and reduce the inflow of marine plastic waste into the oceans and thereby contributing to the sustainability of the world's oceans. Our area of focus is to develop systems to clean up the plastic waste close to shore in a limited area with large quantities of marine plastic, utilizing recourses for maximum impact. In collaboration with established industrial partners within the Norwegian offshore industry, autonomy, and maritime industries, we are developing innovative stationery and autonomous solutions designed to collect plastic waste in and below the water surface in lakes, water canals, rivers and river mouths, harbors, marinas, and other waterfront areas.