Data center firm Yondr has completed the first phase of its latest data center outside London, UK.

The DigitalBridge-owned company this week announced it has achieved its first ready for service (RFS) milestone for the third data center on the company’s 100MW London campus in Slough.

Yondr broke ground on the 40MW facility last year. The facility includes a green wall and on-site solar panels.

Christopher Bennett, Yondr project director, said: “Our London campus holds significant strategic importance for Yondr and plays a vital role in supporting our growth objectives in Europe. We are proud to reach this important milestone for our third data center on this campus, which has been delivered in line with our sustainability strategy and 2030 target for Scope 1 and 2 carbon emissions. This achievement would not have been possible without the strong collaboration and commitment of our valued vendors and partners.”

Located on the site of a former paint factory, the company first announced plans for the campus in November 2021, with the first 40MW facility launched in June 2024. The second 30MW building launched in April 2025.

Yondr secured planning permission for the third facility in August 2024 and broke ground in February 2025.

Yondr is headquartered in London and was previously owned by single-family investment office Cathexis, Apollo Global Management, and Mubadala. It was acquired by DigitalBridge and Canadian pension fund La Caisse in a deal that closed in July 2025. German financial giant Allianz has since acquired a minority stake in the business.

Yondr operates data center campuses across Europe, Asia, and North America, with developments in Virginia, Texas, Canada, the UK, Indonesia, Japan, Germany, and the Netherlands.

Located west of London, Slough is one of the main data center hubs in the UK. The likes of Equinix, Digital Realty, GTR, Iron Mountain, Csqaure, Kao, Virtus, and others operate in the area.