Summary
- KKR and BlackRock's Global Infrastructure Partners are preparing CyrusOne for a possible IPO as early as 2027.
- One source told Reuters that a listing could raise about $5bn, although no valuation or final offer size has been decided.
- CyrusOne operates more than 60 data centres, including a substantial portfolio across European markets.
CyrusOne is preparing for a possible return to public markets as early as 2027, potentially giving the data centre operator another route to capital as its owners look to monetise part of an investment made when the business was taken private four years ago.
Reuters reported that owners KKR and BlackRock’s Global Infrastructure Partners met investment banks including Goldman Sachs and Morgan Stanley, which pitched for roles on a potential initial public offering.
No final decision has been made on the amount CyrusOne would seek to raise or the valuation attached to a listing. One source told Reuters that the offer could raise about $5bn, but discussions remain at an early stage and the structure could change.
KKR and GIP took CyrusOne private in 2022 in a transaction valued at approximately $15bn including debt. A future listing could allow the owners to realise part of their investment while giving CyrusOne access to public equity to support expansion or reduce leverage.
The company operates more than 60 data centres across the United States, Europe, and Japan. Its current European footprint includes facilities and developments in London, Frankfurt, Dublin, Amsterdam, Paris, Milan, and Madrid.
That gives the capital-markets discussion a direct European infrastructure dimension. CyrusOne is not simply a US operator seeking a domestic listing; it is deploying capital into multiple markets where power access, land, planning, and construction costs are increasingly influencing the pace of capacity growth.
Capital structure meets infrastructure scale
Data centre development has become unusually capital intensive as operators move towards campuses measured in tens or hundreds of megawatts. The cost is not limited to the buildings themselves. Electrical substations, transmission connections, backup generation, cooling systems, land, fibre, and long-lead mechanical and electrical equipment all require investment before a customer can occupy capacity.
Private infrastructure funds have been able to support that expansion with large pools of patient capital, but public markets offer a different financing route. A listed operator can potentially issue equity more regularly, broaden its investor base, and use publicly traded shares in future transactions.
The trade-off is greater market scrutiny of returns, development pipelines, leverage, customer concentration, and the speed at which committed capital becomes income-producing capacity. That can be uncomfortable in a sector where projects may take years to move through grid and planning systems.
CyrusOne’s European portfolio illustrates that tension. Its facilities include six London locations and multiple Frankfurt sites, alongside Dublin, Amsterdam, Paris, Madrid, and new Italian capacity. Several of those markets are precisely where grid access and urban infrastructure constraints are making development more complex.
The operator has also been pursuing energy strategies that reach beyond conventional utility supply. In Frankfurt, CyrusOne has worked with E.ON on local generation and integrated heat and cooling arrangements intended to address grid constraints at the FRA7 development.
That kind of infrastructure requires significant upfront capital even before revenue is fully established. A successful IPO could therefore do more than provide an exit route for existing owners: it could influence how aggressively CyrusOne competes for new European sites and power.
The potential listing is part of a broader movement of AI and data centre infrastructure towards public and institutional capital. As demand increases, the sector is absorbing sums that make ownership structure almost as important as technical design.
For now, CyrusOne remains privately held and the IPO has not been formally launched. Bank pitches are an early preparatory step. The next meaningful signals will be the appointment of advisers, a proposed valuation, financial disclosures, and a clearer view of how much fresh capital — if any — would remain in the business rather than being used primarily to realise existing investors’ holdings.
