Streamline Innovations built a business around an ugly molecule: hydrogen sulfide. Its trick is to make the poison disappear without making a second mess.
RanMarine Technology is a Rotterdam-based marine robotics company that builds autonomous, electric aquadrones - led by its flagship WasteShark - to remove floating plastic, debris and biomass from ports, marinas, harbours and inland waterways while collecting water-quality data. Founded in South Africa in 2015 and re-incorporated in the Netherlands, the company sells hardware plus a connected data platform to ports, municipalities, water authorities, facilities firms and NGOs across several continents.