Equinix Slough LD4/LD5/LD6/LD7/LD10, Blackstone Cambois (Britishvolt site), Virtus + CyrusOne — Sponsor Licence £611/£1,682.
Cross-border hyperscale-DC workforce mobilisation against Equinix Slough campus (LD4 / LD5 / LD6 / LD7 / LD10 on SEGRO ground lease through ~2060s, 38,000 m² combined floor space), Blackstone Cambois (Blyth, Northumberland) £110 m site acquisition April 2024 from failed Britishvolt for AI/hyperscale campus, Virtus / Kao / CyrusOne / Iron Mountain / Yondr on Slough cluster — Sponsor Licence fees raised to £611 / £1,682 from 8 April 2026, Skilled Worker threshold £41,700.
Request Technical BriefingRegulator exposure profile
- Sponsor Licence + Skilled Worker28%
- CSCS + CITB Levy + CIS24%
- Building Safety Act 202222%
- Ofgem DNO + EN 5060026%
Same Cx surface, Sponsor Licence + CSCS + CITB underneath.
The UK hyperscale cluster (Slough Trading Estate Equinix LD-series + Blackstone Cambois) sits under the post-2025 Skilled Worker reform: £41,700 threshold, ISL scheduled abolition 31 December 2026 → Temporary Shortage List. CSCS Black/Gold/Blue/Red cards govern site access; CIS withholding 20% / 30%.
| Equinix LD4 | Equinix LD5/LD6 | Equinix LD10 | Blackstone Cambois | Virtus + CyrusOne Slough | |
|---|---|---|---|---|---|
| Power Cx BS 7671 + BA4/BA5 | covered | partial | partial | upgrading | partial |
| Cooling Cx F-gas Cat. I + BSRIA | covered | covered | partial | upgrading | partial |
| Network Cx BMS + BICSI 002 | covered | covered | covered | upgrading | partial |
| Uptime Institute Tier EN 50600 series | covered | covered | covered | upgrading | covered |
| Building Safety Act 2022 HRB + Principal Contractor | covered | covered | covered | covered | covered |
- Cx-transferable
- Re-cert required
- Planned ramp
- Out of scope
Ofgem DNO grid-connection queue is the headline schedule risk; Blackstone Cambois inherits Britishvolt grid-connection asset.
Named projects in this jurisdiction
- Equinix Slough Campus LD4/LD5/LD6/LD7/LD10 (SEGRO ground lease ~2060s, 38,000 m² combined) Equinix
- Blackstone Cambois (Blyth, Northumberland) £110 m acquisition April 2024 from failed Britishvolt; AI/hyperscale planned Blackstone 2024
- Virtus / Kao / CyrusOne / Iron Mountain / KKR's GTR / Yondr on Slough cluster Multi-operator cluster
- Equinix London Docklands LD-series Equinix
The UK hyperscale cluster centres on the Slough Trading Estate (Equinix LD-series + Virtus + Kao + CyrusOne + Iron Mountain). Blackstone’s £110 m April 2024 acquisition of the failed Britishvolt site at Cambois (Blyth, Northumberland) added a Tier-1 AI/hyperscale northeast pole.
01. Pre-pricing — CSCS card + CIS + CITB
CSCS card per worker (Red Trainee / Blue Skilled / Gold Supervisor / Black Manager — NVQ-anchored). CIS withholding 20% (registered sub) / 30% (unregistered) / 0% (Gross Payment Status). CITB Levy 0.35% PAYE + 1.25% Net CIS (2026 Order; small-employer exemption ceiling raised to £149,999).
02. Sponsor Licence + Skilled Worker + CoS
Sponsor Licence registration (£611 Small/Charity / £1,682 Medium/Large from 8 April 2026) per UK employer-of-record. Skilled Worker visa at £41,700 general threshold (hourly floor £17.13/hr) from 22 July 2025. Immigration Salary List abolition scheduled 31 December 2026 → Temporary Shortage List.
03. CITB + Building Safety Act 2022 onboarding
CITB Levy enrolment. Building Safety Act 2022 (Higher-Risk Buildings ≥18 m or ≥7 storeys with ≥2 residential units) Principal Contractor competence duty applies through construction lifecycle.
04. HMRC + HSE-defensible evidence pack
HMRC CIS compliance + Home Office sponsor-licence audit. HSE inspection. Minimum pack: bank-traceable remuneration to UK bank, English-language CoS + employment contract, CIS deduction statements, CITB Levy returns, CSCS card per worker, Sponsor Licence CoS register.
05. India and Gulf sourcing corridors — the UK hyperscale pathway
Indian and Gulf corridors deliver pre-cleared cooling, electrical, controls trades. Bayswater corridor anchors on India-UK Migration Mobility Partnership + Tier-1/2 BHEL/L&T-trained electrical fitters + Gulf NORSOK-equivalent. CoS issuance + CSCS card scheduled into the 4-6 week post-arrival window. The 8 to 14-week corridor delivers candidates against Slough Equinix, Blackstone Cambois, or Slough cluster operators.