120 facilities · 35 operators · 1,536 MW tracked
Colocation in United Kingdom: pricing, providers and markets
35 operators run 120 tracked data centers in United Kingdom across 6 cities with at least three sites (108 operational, 1,536+ MW published, 14 AI-ready). Below: the published price benchmark, retail list prices, the operator list and the city pages. Catalog data from primary sources; no estimates.
How much does colocation cost in United Kingdom?
35 operators run 120 tracked data centers in United Kingdom; the largest by sites is Pulsant (14). No published wholesale $/kW benchmark exists for this market yet, so Coloprice shows none rather than an estimate. Published retail list prices in this market start at £52.5 (Single server (1U–4U), HA Hosting). 2 operators publish rate cards here.
Wholesale benchmark
No published wholesale benchmark for this market. Coloprice does not estimate prices; request quotes below.
Published retail prices
- £55 — 1U–5U, from, Fast2Host (Cambridge; Dual A+B feeds sized per unit)
- £250 — Quarter rack (10U), from, Fast2Host (Cambridge; Dual 16 A A+B)
- £425 — Half rack (21U), from, Fast2Host (Cambridge; Dual 16 A A+B)
- £650 — Full rack (42U), from, Fast2Host (Cambridge; Dual 32 A A+B)
- £52.5 — Single server (1U–4U), HA Hosting (Sheffield; 84 kWh/mo (0.5 A) included, £0.40/kWh above)
Colocation providers in United Kingdom
Operators with tracked data centers in United Kingdom, sorted by sites, then published capacity. Sites / operational; MW is the sum of what each operator publishes for these sites. Some entries are hyperscaler or enterprise sites that do not sell colocation — check the facility card.
| Operator | Sites / live | Published MW | Top-scored facility | Certifications | AI-ready |
|---|---|---|---|---|---|
| Pulsant | 14 / 14 | 22 | Pulsant Edinburgh SC-1 (South Gyle) | not published | — |
| Digital Realty (Interxion) | 13 / 13 | not published | LON1 | SOC 2, ISO 27001, ISO 9001 | — |
| Equinix | 10 / 10 | not published | Equinix LD5 | Climate Neutral Data Centre Pact, Cyber Essentials, EU Code of Conduct | 1 |
| Stellanor | 8 / 8 | 5 | Stellanor Woking | not published | — |
| CyrusOne | 6 / 5 | 158 | CyrusOne LON2 | ISO 14001 | — |
| NTT Global Data Centers | 6 / 6 | 85 | NTT London 1 Data Center | not published | — |
| Ark Data Centres | 6 / 4 | not published | Ark Spring Park | ISO 27001, ISO 22301, ISO 9001 | 3 |
| Colt DCS | 5 / 3 | 204 | Colt DCS London 4 (Hayes) | not published | 2 |
| Telehouse | 5 / 5 | 18 | Telehouse North Two | ISO 9001, ISO 14001, ISO 27001 | — |
| VIRTUS Data Centres | 4 / 4 | 192 | VIRTUS LONDON2 (Hayes) | BREEAM Good, Uptime Tier III | — |
| Yondr Group | 3 / 2 | 100 | Yondr London Campus - Building 1 | not published | — |
| Vantage Data Centers | 3 / 3 | 75 | Vantage CWL1 Cardiff Campus | Tier III standards, ISO 9001, ISO 14001 | 1 |
| Kao Data | 3 / 2 | 71 | Kao Data Harlow Campus | BREEAM Excellent, OCP-Ready, NVIDIA DGX-Ready | 2 |
| Iron Mountain | 3 / 2 | 61 | Iron Mountain LON-1 | ISO 27001, ISO 9001, ISO 14001 | — |
| iomart | 3 / 3 | 11 | iomart Central London Data Centre (DC2) | ISO 9001, ISO 27001, ISO 22301 | — |
| Global Switch | 3 / 2 | not published | Global Switch London East | not published | — |
| Keppel DC REIT | 3 / 3 | not published | Keppel DC London (Bracknell) | not published | — |
| Node4 | 3 / 3 | not published | Node4 Derby Data Centre | ISO 27001 accredited, PCI compliant | — |
| Pure Data Centres Group | 2 / 1 | 90 | Pure Data Centres — London Brent Cross, Building 1 (LON01) | Platinum Zero Waste to Landfill Certification | — |
| Custodian Data Centres | 2 / 2 | 10 | Custodian Data Centres DA2 | ISO 27001 | — |
| Ada Infrastructure | 1 / 0 | 210 | Ada Infrastructure Docklands | not published | 1 |
| Nscale | 1 / 1 | 90 | Nscale Loughton | not published | 1 |
| Pure Data Centres Group / SEGRO (JV) | 1 / 0 | 72 | Pure Data Centres — London Park Royal | not published | 1 |
| DataVita | 1 / 1 | 24 | DataVita Fortis (DV1) | Uptime Institute Tier III Certification of Design Documents, Uptime Institute Tier III Certification of Constructed Facility | — |
| Csquare | 1 / 1 | 15 | Csquare LHR3 | SOC 1 Type II, SOC 2 Type II, PCI-DSS | 1 |
| ServerFarm | 1 / 1 | 11 | ServerFarm LON1 London (Feltham) | not published | 1 |
| Aptum Technologies | 1 / 1 | 10 | Aptum Portsmouth (Havant) Data Center | Tier II+, ISO 27001, PCI-DSS v3.2.1 | — |
| DataBank | 1 / 1 | 4 | DataBank LHR1 | not published | — |
| brightsolid | 1 / 1 | not published | brightsolid Aberdeen | Uptime Institute Tier III Certification of Design Documents, ISO 27001, ISO 22301 | — |
| China Mobile International | 1 / 1 | not published | China Mobile International UK Data Centre | not published | — |
| European Data Centre | 1 / 1 | not published | European Data Centre — Edinburgh Lochside | ANSI/TIA-942-B Facility - Rated 2 | — |
| IONOS (Fasthosts) | 1 / 1 | not published | IONOS / Fasthosts Worcester Data Centre | Uptime Institute Tier IV Certification of Constructed Facility | — |
| nLighten | 1 / 1 | not published | nLighten Birmingham (BHX1) | Uptime Institute Tier III Certification of Design Documents, ISO 27001 | — |
| OVHcloud | 1 / 1 | not published | OVHcloud London Data Center (Erith) | not published | — |
| Volta Data Centres | 1 / 1 | not published | Volta Data Centres — Great Sutton Street | ISO 9001, ISO 14001, ISO/IEC 27001 | — |
Colocation markets in United Kingdom
| City | Sites / live | Published MW |
|---|---|---|
| Colocation in London | 54 | 1,039 |
| Colocation in Slough | 17 | 186 |
| Colocation in Edinburgh | 4 | 7 |
| Colocation in Crawley | 3 | not published |
| Colocation in Hemel Hempstead | 3 | 50 |
| Colocation in Reading | 3 | 19 |
Availability in United Kingdom: what the numbers do and do not say
Published megawatts describe how facilities are designed, not how much power is available to a new customer today. Vacancy is confirmed only in an operator's proposal for a specific hall and ready-for-service date. Where operators have told Coloprice that a market is sold out to a date, the facility cards say so; otherwise assume nothing and ask each provider the same question.
What the colocation price includes — and what it does not
- Included in the base fee: rack or cabinet space, a committed power circuit, cooling, physical security, and usually a basic remote-hands allowance.
- Billed separately: metered electricity above the allowance (or a per-kWh rate on retail contracts), cross-connects, IP transit, additional remote hands, and one-off setup or installation fees.
- Wholesale contracts add annual escalators, ramp schedules and power-commitment minimums; retail contracts add overage rates and bandwidth caps. Compare providers on the same committed kW, density, term and connectivity.
See also
Weekly digest: price moves, capacity and deals in one email.
FAQ
Who are the largest colocation providers in United Kingdom?
By tracked sites: Pulsant with 14. By published IT capacity: Ada Infrastructure with 210 MW. Facility counts and MW come from operator pages and registries; the table above lists every operator with a tracked site in United Kingdom, including some that do not sell space.
Is there colocation capacity available in United Kingdom right now?
Coloprice tracks 120 facilities here (108 operational, 12 under construction or announced) but does not track vacancy. Availability, rack density and delivery dates are confirmed only in a current proposal for a specific hall — send the same brief to several providers and compare.
How do I get comparable colocation quotes in United Kingdom?
Send every provider one brief: committed kW, density per rack, redundancy, carriers and cloud on-ramps, start date, term and expansion rights. Ask for space, power, metered electricity, cross-connects, installation and remote hands as separate lines, then compare against the benchmark. The form below routes one brief to matching operators; no operator pays for position.
Get colocation quotes in United Kingdom
One brief, several operators with capacity in United Kingdom, same terms. Independent — no operator pays for position.
Colocation in United Kingdom? One brief, several quotes.
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