ARIEMA is a technology company founded in 2002. It is the oldest Spanish company in the sector and the only one with its own electrolysis technology. ARIEMA is positioned as a leader in its various lines of business: Electrolysis equipment and systems; Consulting and customer accompaniment; Education; Institutional Management; Technical advice on investments in the sector. Since its birth as INTA’s technological Spin-Off, ARIEMA has been and is a leading player in R&D projects with Spanish and European public support. Throughout its history, ARIEMA has manufactured, installed and started up fifteen electrolyser systems, as well as carrying out many hydrogen installations for various applications.