REDstack develops and commercializes reverse electro‐dialysis (RED) and related technologies. Founded in 2005, it is a Dutch company with the following shareholders: A. Hak Blue Energy B.V., Alliander Participaties B.V. and W&F MAGNETO B.V. Over the years REDstack has gained great expertise and experience in the fields of RED in general, and more specific, in integrated stack design and manufacturing. Currently REDstack holds 10 patents and since 2014 is investigating RED under real world conditions in a pilot research plant at the Afsluitdijk in the Netherlands.