This dataset stems from the BIOMASS project (https://biobs.jrc.ec.europa.eu/page/biomass-assessment-study-jrc). Its aim is to build a reliable database to characterize the algae sector and to support informed European policies on Blue Growth and Bioeconomy. In the framework of this project, a joint workshop between JRC, FAO and the COST Actions Phycomorph and EUalgae was organized, where the knowledge gaps and needs regarding algae biomass production were discussed. As a first step in this project information on the location of the production facilities, group of produced organism (macro/microalgae) and production method (Fermenters, Photobioreactors, Open ponds, Semi Open ponds, Pilot, Harvesting; land-based, off-shore and coastal Aquaculture, Integrated multi-trophic or not) have been collected in the following countries: Austria, Belgium, Czech Republic, Denmark, Estonia, Faroe Islands, France, Germany, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, and UK. The list of European algae producers is based on the list provided by European Algae Biomass Association (EABA) and combined with JRC list.