VisBlue is an Aarhus company that develops and sells vanadium redox flow batteries for stationary energy storage; it was founded in 2014 out of a collaboration between Aarhus University and the University of Porto (Visblue A/S, CVR 36427957; 15 employees on the Danish register). Its Porto subsidiary, Visblue Portugal, Unipessoal Lda (NIF 514430877), was incorporated in June 2017 to develop and produce redox flow batteries, and the registry acts logged by Racius show dissolution and liquidation entries for it in February 2026.
VisBlue’s own history puts Portugal at the start. The company was founded in 2014 by Adelio Mendes, Anders Bentien, Morten Madsen and Søren Bødker as the result of a collaboration between Aarhus University and the University of Porto, and its battery is based on a patented invention by Mendes and Bentien. Borean Innovation invested late in 2014 to take the battery from a university prototype to a product; the first commercial sale, to the Danish island of Livø, followed at the beginning of 2018, and VisBlue went on to sign partnerships with the distributor Contour Advanced Systems (2018), CIRKEL Energi (2019) and the German stack supplier Schmalz (2021). Borean exited in mid-2020, leaving the company owned by three of the co-founders and four private business angels. The Danish register lists Visblue A/S (CVR 36427957) at Bautavej 1A in Aarhus with 15 employees, under other technical consultancy.
The Portuguese arm, Visblue Portugal, Unipessoal Lda (NIF 514430877), was incorporated on 16 June 2017 as a single-shareholder company with €10,000 of share capital, registered at Rua Alfredo Allen 455 in Porto; its stated object is the development and production of redox flow batteries for storing electrical energy, filed under CAE 27200 (batteries and accumulators) with secondary codes for hydro and thermal power generation and climate-control installation. In October 2020 VisBlue became a co-founder of Vasco da Gama, a Portuguese consortium bringing together energy-sector players from academia, industry and the start-up ecosystem. The subsidiary filed annual accounts for every year from 2017 to 2024, but Racius’s log of registry acts shows changes to its management in May 2025 and dissolution and liquidation entries in February 2026, which indicates that the Porto company is being, or has been, wound up. NorthSouth HQ found no public statement from VisBlue about the Portuguese entity.
VisBlue is a Danish hardware company whose core technology came out of a Danish–Portuguese university partnership: the Aarhus–Porto research link produced the patent, a Porto subsidiary and a seat in a Portuguese energy consortium. With the Porto entity apparently being wound up in 2026 and the company’s 15 registered employees in Aarhus, it also shows how a research corridor can end up with the commercial business concentrated on one side.
Sources: Danish Central Business Register via cvrapi.dk (Visblue A/S); visblue.com (home page, “The history of VisBlue” and company footer); racius.com and nif.pt (Visblue Portugal, Unipessoal Lda, including registry-act history). Spotted an error? Email miguel@fractio.se.
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