ColoCompass

Datacenters by country / United Kingdom

Datacenters and colocation in London

89 datacenters in this metro.

London is one of Europe’s two largest colocation markets and the natural landing point for transatlantic connectivity. LINX and a deep carrier ecosystem give the metro exceptional interconnection choice, and the financial-services cluster keeps demand for low-latency, high-resilience capacity structurally high.

Capacity is spread across distinct submarkets: Docklands and the City for interconnection-dense sites, and the western corridor (Slough and the M4 belt) for larger campuses where much of the newer, higher-density inventory is built. Power availability in West London has been a constraint in recent years, which makes delivery timelines and secured grid connections a key question to put to operators.

Post-Brexit, the UK sits outside the EU’s legal framework; UK GDPR remains closely aligned, but organisations with strict EU-data-residency requirements sometimes pair a London deployment with an EU metro. The snapshot below shows how the listed London inventory compares on power bands, cooling and certifications: a practical starting point before you request proposals.

Market snapshot

Aggregated from operator data for the London Metro area. Counts reflect datacenters that report each attribute.

ColoCompass lists 89 datacenters from 48 operators for the London Metro area. Of these, 3 report available capacity. The most reported certifications are ISO 27001 (77), ISO 9001 (67) and PCI DSS (64).

Datacenters
89
Operators
48
Available now
3
Planned capacity
1
Power bands
5–20 MW 20 · 1–5 MW 13 · 20–50 MW 10 · ≥50 MW 3
Cooling
Air cooling 50 · Free cooling 28 · Liquid-ready 12 · Indirect evaporative 7
Common certifications
ISO 27001 77 · ISO 9001 67 · PCI DSS 64 · ISO 14001 59 · ISO 50001 47

Source: ColoCompass catalog. Last updated .

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  • Kao Data Campus

    Harlow Operations Limited · Harlow · London Metro · map position unknown

    Tier
    III
    Power
    5–20 MW
    Rack density
    20 kW
    Cooling
    Air cooling, Free cooling
    Certifications
    ISO 27001 +11
    On request
  • Virtus LONDON6

    VIRTUS Data Centres · Stockley Park · London Metro · map position unknown

    Tier
    III
    Power
    5–20 MW
    Rack density
    80 kW
    Cooling
    Air cooling, Free cooling, Liquid-ready
    Certifications
    ISO 27001 +11
    On request
  • Virtus LONDON7

    VIRTUS Data Centres · Stockley Park · London Metro

    Tier
    III
    Power
    20–50 MW
    Rack density
    80 kW
    Cooling
    Air cooling, Free cooling, Liquid-ready
    Certifications
    ISO 27001 +10
    On request
  • Custodian CDC Dartford DA2

    CustodianDC LTD. · Dartford · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling, Free cooling
    Certifications
    ISO 27001 +4
    On request
  • Netwise London East (NLE)

    Netwise Hosting Ltd · Canning Town · London Metro

    Tier
    III
    Power
    1–5 MW
    Rack density
    Cooling
    Air cooling
    Certifications
    ISO 9001 +1
    On request
  • nLighten London STN1

    nLighten HQ BV · Hoddesdon · London Metro

    Tier
    III
    Power
    Rack density
    15 kW
    Cooling
    Air cooling
    Certifications
    ISO 27001 +4
    On request
  • NTT Hemel Hempstead 4 Data Center (HH4)

    NTT DATA, Inc. · Hemel Hempstead · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    20 kW
    Cooling
    Air cooling, Free cooling
    Certifications
    ISO 9001 +9
    On request
  • Redhill Datacenter

    Galaxy Data Centers · Redhill · London Metro

    Tier
    III
    Power
    20–50 MW
    Rack density
    125 kW
    Cooling
    Free cooling, Liquid-ready, Direct-to-chip, Immersion
    Certifications
    ISO 27001 +8
    Available
  • Serverfarm LON1 London

    Serverfarm · Feltham · London Metro · map position unknown

    Tier
    III
    Power
    5–20 MW
    Rack density
    40 kW
    Cooling
    Air cooling
    Certifications
    ISO 27001 +5
    On request
  • Telehouse - London (Docklands North Two)

    Telehouse · London · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling, Indirect evaporative
    Certifications
    ISO 27001 +11
    On request
  • VIRTUS LONDON1 (Enfield)

    VIRTUS Data Centres · London · London Metro

    Tier
    III
    Power
    1–5 MW
    Rack density
    Cooling
    Free cooling
    Certifications
    ISO 27001 +13
    On request
  • VIRTUS LONDON2 (Hayes)

    VIRTUS Data Centres · Hayes · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling, Indirect evaporative, Free cooling
    Certifications
    ISO 27001 +13
    On request
  • VIRTUS LONDON3 (Slough)

    VIRTUS Data Centres · Slough · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling, Free cooling
    Certifications
    ISO 27001 +13
    On request
  • VIRTUS LONDON4 (Slough)

    VIRTUS Data Centres · Slough · London Metro

    Tier
    III
    Power
    20–50 MW
    Rack density
    Cooling
    Air cooling, Free cooling, Liquid-ready
    Certifications
    ISO 27001 +12
    On request
  • Virtus LONDON5

    VIRTUS Data Centres · Stockley Park · London Metro

    Tier
    III
    Power
    20–50 MW
    Rack density
    Cooling
    Air cooling, Free cooling
    Certifications
    ISO 27001 +12
    On request
  • 4D Gatwick (Crawley)

    4D Data Centres Ltd · Crawley · London Metro

    Tier
    III
    Power
    1–5 MW
    Rack density
    Cooling
    Air cooling, Rear-door heat exchanger, Immersion
    Certifications
    ISO 27001 +2
    On request
  • Ada Infrastructure (Docklands)

    Ada Infrastructure · London · London Metro

    Under construction

    Tier
    III
    Power
    ≥50 MW
    Rack density
    Cooling
    Air cooling, Liquid-ready
    Certifications
    ISO 27001 +5
    Operational from 2028
  • CyrusOne LON5

    CyrusOne Data Centers · Slough · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Free cooling
    Certifications
    ISO 27001 +5
    On request
  • CyrusOne London 1

    CyrusOne Data Centers · Slough · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling, Indirect evaporative, Free cooling
    Certifications
    ISO 27001 +6
    On request
  • CyrusOne London 2

    CyrusOne Data Centers · West Drayton · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Free cooling, Liquid-ready
    Certifications
    ISO 27001 +6
    On request
  • CyrusOne London 3

    CyrusOne Data Centers · Slough · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling, Indirect evaporative, Free cooling
    Certifications
    ISO 14001 +5
    On request
  • CyrusOne London 4

    CyrusOne Data Centers · Slough · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling, Free cooling
    Certifications
    ISO 27001 +5
    On request
  • Digital Realty London LGW16

    Digital Realty · Crawley · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Indirect evaporative
    Certifications
    ISO 9001 +12
    On request
  • Digital Realty London LON1-3

    Digital Realty · London · London Metro

    Tier
    III
    Power
    Rack density
    30 kW
    Cooling
    Free cooling
    Certifications
    ISO 9001 +6
    On request
  • Equinix LD7 - London, Slough

    Equinix, Inc. · Slough · London Metro

    Tier
    III
    Power
    Rack density
    6 kW
    Cooling
    Indirect evaporative, Free cooling, Liquid-ready
    Certifications
    ISO 27001 +14
    On request
  • Global Switch London North

    Global Switch · London · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling
    Certifications
    ISO 9001 +5
    On request
  • Iron Mountain Data Center - London (LON-1)

    Iron Mountain Data Centers · Slough · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling
    Certifications
    ISO 9001 +11
    Available
  • Kao Data KLON-06

    Kao Data · Slough · London Metro

    Tier
    III
    Power
    20–50 MW
    Rack density
    Cooling
    Certifications
    ISO 27001 +9
    On request
  • NTT Hemel Hempstead 2 Data Center (HH2)

    NTT DATA, Inc. · Hemel Hempstead · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    20 kW
    Cooling
    Air cooling
    Certifications
    ISO 27001 +8
    On request
  • NTT Hemel Hempstead 3 Data Center (HH3)

    NTT DATA, Inc. · Hemel Hempstead · London Metro

    Tier
    III
    Power
    20–50 MW
    Rack density
    20 kW
    Cooling
    Air cooling
    Certifications
    ISO 27001 +8
    On request
  • NTT Slough 2 Data Center (SL2)

    NTT DATA, Inc. · Slough · London Metro

    Tier
    III
    Power
    1–5 MW
    Rack density
    20 kW
    Cooling
    Air cooling
    Certifications
    ISO 27001 +9
    On request
  • NTT Slough 3 Data Center (SL3)

    NTT DATA, Inc. · Slough · London Metro

    Tier
    III
    Power
    1–5 MW
    Rack density
    20 kW
    Cooling
    Air cooling
    Certifications
    ISO 27001 +7
    On request
  • Pulsant Croydon LN-1

    Pulsant · Croydon · London Metro

    Tier
    III
    Power
    1–5 MW
    Rack density
    30 kW
    Cooling
    Certifications
    ISO 27001 +4
    On request
  • QiComm Tutis Point

    Docklands Data Centre Limited · London · London Metro

    Tier
    III
    Power
    Rack density
    7 kW
    Cooling
    Air cooling
    Certifications
    ISO 9001 +2
    On request
  • Redcentric Byfleet

    Stellanor Data Centers · West Byfleet · London Metro · map position unknown

    Tier
    III
    Power
    1–5 MW
    Rack density
    Cooling
    Air cooling
    Certifications
    ISO 27001 +2
    On request
  • ServerChoice SC-1

    ServerChoice Ltd · Stevenage · London Metro

    Tier
    II
    Power
    1–5 MW
    Rack density
    6 kW
    Cooling
    Certifications
    ISO 27001 +3
    On request
  • Telehouse - London (Docklands South)

    Telehouse · London · London Metro

    Tier
    III
    Power
    5–20 MW
    Rack density
    Cooling
    Air cooling, Free cooling
    Certifications
    ISO 27001 +8
    On request
  • Telehouse East

    Telehouse · London · London Metro

    Tier
    III
    Power
    Rack density
    3 kW
    Cooling
    Air cooling
    Certifications
    ISO 27001 +8
    On request
  • Telehouse North

    Telehouse · London · London Metro

    Tier
    III
    Power
    Rack density
    3 kW
    Cooling
    Air cooling
    Certifications
    ISO 27001 +9
    On request
  • Telehouse West

    Telehouse · London · London Metro

    Tier
    III
    Power
    Rack density
    10 kW
    Cooling
    Air cooling, Free cooling
    Certifications
    ISO 27001 +9
    On request
  • Templus London LON02

    Templus · London · London Metro

    Tier
    III
    Power
    1–5 MW
    Rack density
    12 kW
    Cooling
    Certifications
    ISO 27001 +1
    On request
  • Ark Data Centres - Union Park

    Ark Data Centres · Hayes · London Metro

    Tier
    Power
    ≥50 MW
    Rack density
    Cooling
    Air cooling, Liquid-ready
    Certifications
    ISO 14001 +8
    On request
  • Digital Realty LGW15

    Digital Realty Trust · Crawley · London Metro

    Tier
    III
    Power
    Rack density
    Cooling
    Indirect evaporative
    Certifications
    ISO 27001 +7
    On request
  • Digital Realty London LGW14

    Digital Realty · Woking · London Metro

    Tier
    III
    Power
    Rack density
    Cooling
    Air cooling
    Certifications
    ISO 27001 +6
    On request
  • Digital Realty London LHR13

    Digital Realty · Chessington · London Metro

    Tier
    III
    Power
    Rack density
    Cooling
    Air cooling, Free cooling
    Certifications
    ISAE 3402 +7
    On request
  • Digital Realty London LHR17

    Digital Realty · West Drayton · London Metro

    Tier
    III
    Power
    Rack density
    Cooling
    Air cooling
    Certifications
    ISO 27001 +8
    On request
  • Digital Realty London LHR18

    Digital Realty · London · London Metro

    Tier
    III
    Power
    Rack density
    Cooling
    Air cooling
    Certifications
    SOC 2 +8
    On request
  • Digital Realty London LHR19

    Digital Realty · London · London Metro

    Tier
    III
    Power
    Rack density
    Cooling
    Free cooling, Liquid-ready
    Certifications
    ISO 27001 +8
    On request
  • Equinix LD10 - London, Slough

    Equinix, Inc. · Slough · London Metro

    Tier
    III
    Power
    Rack density
    7 kW
    Cooling
    Free cooling, Hybrid cooling
    Certifications
    Climate Neutral Data Centre Pact +11
    On request
  • EXA Datacenter London (GS2 London East)

    EXA Infrastructure · London · London Metro

    Tier
    III
    Power
    20–50 MW
    Rack density
    Cooling
    Liquid-ready
    Certifications
    ISO 27001 +2
    On request

Showing the first 50 datacenters. Refine on the discover page.

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