Arsys is a Spanish specialist for web hosting and cloud products, and is among the most innovative and leading companies in the technology sector in Europe.

The company's products run on the firm's two advanced, leading-edge computer centers in Spain. The new main computer center, with an area of 6,000 m², was commissioned in 2009 and can be readily extended thanks to the modular design. Particular attention was paid to sustainability, environmental and security aspects during construction. Consequently, the computer center also impresses with its particularly high energy efficiency.

In addition, Arsys maintains a communications network spanning more than 5,000 km, connecting the data hosted in the computer center with the Internet. Two redundant and simultaneously active glass fiber lines deliver fast data interchange. This provides Arsys with an autonomous system with IPv4 and IPv6 addresses, which is registered and licensed in the European net (RIPE).

Arsys has belonged to the United Internet Group since August 2013.