Market comparison
London, United Kingdom vs Slough, United Kingdom
Both columns are built from the catalog and the price index: London — 59 facilities from 30 operators, Slough — 23 facilities from 10 operators. Where a benchmark or a tariff is not published, the cell says so.
London, United Kingdom
59
Tracked facilities · Operators: 30
Wholesale benchmark, $/kW/month: $213 (range 195–230)
Slough, United Kingdom
23
Tracked facilities · Operators: 10
Wholesale benchmark, $/kW/month: $213 (country-level)
Markets side by side
| Field | London | Slough |
|---|---|---|
| Tracked facilities | 59 | 23 |
| Operators | 30 | 10 |
| Published IT capacity | 984 MW (23 of 59 sites publish) | 239 MW (10 of 23 sites publish) |
| Operational | 50 | 22 |
| Under construction / announced | 9 | 1 |
| Tier III+ certified sites | 4 | 0 |
| Sites with any certification | 27 | 13 |
| Liquid-cooled sites | 6 | 1 |
| AI-ready sites | 7 | 1 |
| Wholesale benchmark, $/kW/month | $213 (range 195–230) | $213 (country-level) |
| Benchmark change, yoy | not published | not published |
| Industrial power tariff, $/kWh | $0.454 | $0.454 |
| Average Coloprice Score | 26/100 across 59 sites | 28/100 across 23 sites |
| Latency between the two | not published | |
Counts are the Coloprice catalog as of 2026-10-01; benchmarks are the Colocation Price Index (Q3 2026). Operators publish some facts and not others — an empty cell means «not published», not zero.
Where they differ
Only fields both sides publish and where the values are not identical. This is not a judgement: the right choice depends on the workload, the contract and the site.
- Tracked facilities: London — 59; Slough — 23
- Operators: London — 30; Slough — 10
- Published IT capacity: London — 984 MW (23 of 59 sites publish); Slough — 239 MW (10 of 23 sites publish)
- Operational: London — 50; Slough — 22
- Under construction / announced: London — 9; Slough — 1
- Tier III+ certified sites: London — 4; Slough — 0
- Sites with any certification: London — 27; Slough — 13
- Liquid-cooled sites: London — 6; Slough — 1
- AI-ready sites: London — 7; Slough — 1
- Wholesale benchmark, $/kW/month: London — $213 (range 195–230); Slough — $213 (country-level)
- Average Coloprice Score: London — 26/100 across 59 sites; Slough — 28/100 across 23 sites
Top facilities by score
London, United Kingdom
- VIRTUS LONDON2 (Hayes) VIRTUS Data Centres · 12 MW
- Iron Mountain LON-1 Iron Mountain · 8.7 MW
- Iron Mountain LON-2 Iron Mountain · 27 MW
Slough, United Kingdom
- Equinix LD5 Equinix
- Equinix LD4 Equinix
- Equinix LD6 Equinix
Open London data centers →Open Slough data centers →Colocation pricing in London →Colocation pricing in Slough →
Other comparisons
London vs ManchesterLeeds vs LondonDublin vs LondonAmsterdam vs LondonManchester vs SloughLeeds vs Slough