London Data Centre | London Data Centres


Protect infrastructure not headed to the cloud while accelerating hybrid IT transformation. Ready for edge, cloud, enterprise, and local business requirements.
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Whether you are consolidating, establishing a hybrid IT environment, or simply addressing data centre change, you can trust Iron Mountain. For specific colocation offering details, visit the London colocation page.


Proven Track Record

Since 1951, Iron Mountain has been the trusted guardian for more than 225,000 customers including 95% of the Fortune 1000. The world’s most heavily regulated organizations have trusted us with their data centres since the 1980’s.

Risk Mitigation

Reduce data centre risk by choosing colocation services from Iron Mountain in Slough, UK. Receive comprehensive compliance support, federal-grade security, and the stability of an S&P 500 REIT with 1,400+ locations in 54 countries.

Operational Efficiency

Streamline digital transformation with the most logical venue for hybrid IT – our London data centre. Easily access cloud, telecom, and IT services providers. Plus, make remote management efficient with our software and smart hands.


Strategically located in the Slough Trading Estate, LON-1 is a 183,000 SF colocation facility on Iron Mountain's 5.5-acre London data centre campus. Enjoy close proximity to one of Europe's largest network ecosystems.


LON-1 was originally built as a production data centre hub for one of the largest banking organizations in the world. Today, all customers benefit from this commitment to reliability, security, and efficiency.

Data Centre as a Service

Stop making long-term bets on limiting in-house data centres. Instead, get data centre capacity like your cloud services – as you need it. Choose from cabinets, cages, suites, MOD’s, and wholesale solutions.



Marriott - Hospitality

Iron Mountain Data Centres, Disaster Recovery


“More than five years ago, we determined that we needed more flexibility and we got it. Today we have a data centre that provides Marriott with a tremendous capability for disaster recovery, and we have a great partner in Iron Mountain.”
- Marriott




Services Offered at Our London, UK Data Centre

Wholesale Data Centre

Wholesale Data Centres

With a 5.5-acre campus outside of London, we have the ability to deliver wholesale, dedicated data centre floors on campus. Contact us today to schedule a consultation with our data centre construction team.
Retail Colocation - Iron Mountain Cages, Cabinets & Suites

Colocation: Suites, Cages, Cabinets

LON-1 offers a wide range of colocation solutions ranging from individual cabinets to cages and suites. Address power densities of up to 20 kilowatts per cabinet, ideal for hyperconverged infrastructure and cloud.
Modular Data Centres

Modular Data Centres

Looking for a self-contained data centre with power capacities in between a dedicated facility and colocation? Choose a MOD. These purpose-engineered units deliver PUE’s near 1.1, up to 52U cabinets, and design flexibility.
Hybrid IT Colocation - Cloud Access

Hybrid IT Enablement: Cloud Access

LON-1 is a cloud-neutral colocation facility, offering access to a wide-range of cloud providers by way of dark fiber connectivity to the regional carrier hotel also located in the Slough Trading Estate less than five minutes away.
Hybrid IT Colocation - Carrier Access

Hybrid IT Enablement: Carrier Access

Our London data centre is also carrier-neutral, providing access to 200+ network service providers via dark fiber connectivity to the regional carrier hotel located less than 5 minutes away.
Hybrid IT Colocation - IT Services

Hybrid IT Enablement: IT Services

What is the current state of your IT and data centre operations teams? Overworked? Lean-staffed? Would access to on-demand resources be helpful? Have you considered Iron Mountain data centre services?


  • Located in the Slough Trading Estate in close proximity to one of Europe's top interconnection ecosystems
  • 5.5-acre Iron Mountain Strategic Edge data centre campus
  • 183,000 gross square feet
  • 8.75 MW existing and expansion power capacity, three 15 MVA feeds
  • Raised-floor with ability to add modular data centre/s on request
  • HPC ready with high-density racks, MOD’s
  • 2N, N+1 infrastructure configurations available
  • Low design PUE for reduced waste, OPEX
  • Carrier-neutral access to 200+ network providers*
  • Cloud-neutral access to 275+ cloud and IT services providers*
  • Access to cloud/carrier exchanges like MegaPort*
  • Customer ecosystem includes global banking
  • On-site Iron Mountain employees include UK General Manager, International Operations personnel
  • Diverse group of vetted IT services providers for migration, managed infrastructure, managed applications and more
  • Redundant Meet-Me Rooms
  • Iron Mountain serves 225,000+ customers worldwide including 95% of the Fortune 1000

*Accessed via dark fiber connection to regional carrier hotel less than five minutes away. Build-out underway.

  • On-site security officers
  • Secure, gated campus entry with access controls
  • Mantraps, tailgating prevention
  • 24x7x365 CCTV monitoring
  • 3-factor access controls: biometric, key card, PIN
  • Ballistic sheathing and bulletproof glass for security
  • Thorough background checks on all employees/partners
  • Built to the exacting standards of a large, global financial services providers
  • 2N, N+1 infrastructure configurations available
  • Concurrently maintainable systems
  • 24x7x365 NOC monitoring of data centre environmentals
  • Resilient facility withstands inclement weather, winds
  • Mitigated DR risk: outside 100 & 500-year floodplains
  • Redundant meet-me-rooms
  • Diverse dark fiber paths, points of entry
  • Design PUE of 1.4 with as low as 1.2 with MOD's
  • Iron Mountain data centres are powered by 100% renewable energy
  • EPA Top 10 Tech and Telecom Green Power Partner
  • Metered power pricing encourages responsible energy use
  • Renewable energy credits / carbon credit support
  • US DoE Better Buildings Challenge Participant
  • Signatory to the Renewable Energy Buyers Principals, Cloud and Colocation Buyers Principals
  • Multiple investments in U.S. wind farms, solar
  • ISO 27001
  • ISO 50001
  • PCI-DSS Level 1
  • SOC 2 Type II
  • SOC 3

Data Centre Compliance Across the Globe

Data Center Compliance
View the Iron Mountain DMCA here

Resources: Make Your Data Centre Initiative More Effective

Premium Content Whitepapers 10 Steps to Migration Success

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The Role of Colocation in a Multi-Cloud World

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Premium Content Infographics and Tools 5 Things You Should Know About ISO 50001

5 Things You Should Know About ISO 50001

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Business Women Talking with Customer | Iron Mountain

Contact Iron Mountain

Our Customer Support section can help provide you with the quickest answers to your questions, or feel free to contact us at your convenience