MacroCarbon

MacroCarbon is a deep-tech startup defossilizing heavy industries, specifically aviation, by cultivating macroalgae in modular offshore oceanic aquafarms. Its proprietary biorefinery technology converts seaweed and organic waste into carbon-negative SAF, biochar, and agricultural biostimulants. Without competing for land or fresh water, MacroCarbon reduces biomass production costs by 85% and sequesters 35000 tons of CO2 per km² annually, powering aviation with seaweed innovation and securing a sustainable energy transition.