Energy efficient colo site will be connected to Singapore and US based facilities.
IO will build a data centre in Slough ahead of further European expansion plans.
The 10,405 sq m colo site will boast 20 MW of core power, provided by SSE and will be opened this year.
IO said the facility will be one of the most energy-efficient in Europe featuring a closed-loop chilled water cooling system.
As for the telecommunications, the hub will be carrier-neutral and have two diverse fiber entry vaults with four eight 100mm PVC conduits each.
The company added that up to seven Caterpillar power backup generators of 2.5MW each will be deployed on site.
IO said: "IO is entering the European market with a brand new facility in Slough, just outside of London. With more than 10,000 square metres of total space, the data centre features highly reliable power, a dedicated substation and will house IO’s market-leading data centre modules."