CITADEL100, a member of the Keppel DC REIT, is Ireland’s leading wholesale datacenter operator.

CITADEL100 own and operate 65,000 sq ft. of raised-floor mission critical datacenter space in the National Digital Campus at Citywest in Dublin.

Our experienced team has a proven track record in delivering large scale, wholesale colocation solutions to both international and local enterprises in the highly regulated technology, financial, pharmaceutical and telecommunications industries as well as local government agencies.

Strong local market knowledge and an established contact network with international reach have maintained CITADEL100 at the forefront of the data center industry for over 14 years.

CITADEL100 provides white space rack containment, security, power and cooling data center infrastructure maintenance and management. Remote Hands & Eyes services can be provided by our inhouse 24/7/365 NOC (Network Operations Center).
Other services include data center design and build solutions, 100% power availability SLAs and private cloud services.

We operate a carrier-neutral data center and provide direct access to a wide selection of network providers for greater choice, flexibility, network resilience, cost savings and speed to market. Our partners deliver direct access to the widest possible selection of international and local fixed lines, broadband and mobile networks, financials service companies, and cloud hubs.

Detailed information on our data center can be found in our FAQ section here.

CITADEL100 is ISO 9001:2008 Quality Management System Certified.

CITADEL100 is part of the Keppel DC REIT, the first data center real estate investment trust (DC REIT) to be listed in Asia. Keppel DC REIT invests in a diversified portfolio of income-producing real estate assets used for data center purposes, with an initial focus on Asia-Pacific and Europe. The REIT has  500,000 square foot of mission-critical Data Center space under operation globally. Our data centers are located in Dublin, London, Amsterdam, Singapore, Malaysia, Sydney and Brisbane. For further information on worldwide locations and the DC REIT please click here.

If you are interested in learning more about us and our services please fill in the Request Information form below. Thank you.

For directions to our location please see here.


Clients have 24/7/365 access to their colo and office space onsite subject to compliance with our data center security access protocols. Please speak to your Citadel100 services manager for further details.