1. Ark Data Centres Limited
2. China Mobile International (UK) Limited
3. Digital Realty Trust Inc.
4. CyrusOne UK Limited
5. Vantage Data Centers (UK) Limited
6. NTT Global Data Centers EMEA UK Ltd.
7. Interxion Holding NV
8. ST Telemedia Global Data Centres (VIRTUS Data Centres)
9. Echelon Data Center
10. Equinix (UK) Limited