AbstractArchaea are prokaryotic organisms with highly interesting physiological features. They have also shown potential for the production of biotechnological compounds. Today, the commercially available products of archaea are bacterioruberin, squalene, bacteriorhodopsin, and lipids — all of which are produced by utilizing halophilic archaea. Other products include carotenoids, bioplastics, molecular hydrogen, and methane. Here we give a brief an overview of the current state of Archaea biotechnology.