TL;DR · 30-second read

The Short Version

Two of the world’s largest infrastructure investors have paid about four billion US dollars for a company that runs eight warehouse-sized buildings full of computers in Iceland, Norway, Sweden, Denmark and Finland.

The appeal is simple. The far north has cheap renewable electricity and air cold enough to cool thousands of hot machines without running expensive air conditioning. Everywhere else, both are getting scarce and costly.

Those buildings are where artificial intelligence systems are trained. Where they get built decides who can afford to run them.

Data Centre Magazine reported on 3 September 2026 that Canada Pension Plan Investment Board (CPP Investments) and Equinix have completed their acquisition of Nordic data centre operator atNorth in a transaction valuing the company at US$4 billion. CPP Investments takes an approximately 51% controlling equity stake for US$1.3 billion, Equinix an approximately 34% minority stake for US$895 million, and Partners Group — atNorth’s owner since 2022 — reinvests for roughly 10% at US$260 million. atNorth’s internal stakeholders retain the balance through an equity rollover.

The transaction is supported by a US$4.1 billion debt facility underwritten by European and Canadian institutional lenders, sized to fund both the purchase and future construction. atNorth operates eight data centres across Denmark, Finland, Iceland, Norway and Sweden, with further sites in development; the company said earlier in 2026 that it had secured more than 1GW of power capacity across operational and pipeline sites. Chief executive Eyjólfur Magnús Kristinsson said atNorth will continue to operate independently under its own brand.

Executive Summary

This is a purchase of inputs, not of buildings. The binding constraints on AI training capacity today are electricity and heat rejection — getting power connected at a price that works, and getting the heat back out of racks drawing far more per square metre than a conventional server hall. The Nordics have an unusual concentration of both: hydro and geothermal generation, and an ambient climate cold enough that operators can cool much of the year with outside air or water rather than mechanical chillers, an approach the industry calls free cooling. atNorth’s stated position of more than 1GW secured across live and pipeline sites is the asset being bought.

The ownership structure is as informative as the price. CPP Investments takes control and the largest cheque; Equinix takes roughly a third and no control. For a company that has built its business on owning and operating its own interconnected facilities, buying a minority position in someone else’s platform — one that will keep its own brand and management — is a deliberate choice to gain exposure to Nordic high-density capacity without absorbing the full construction risk or capital load onto its own balance sheet.

The three disclosed equity commitments total roughly US$2.46 billion for about 95% of the company, against a US$4 billion valuation and a separate US$4.1 billion debt facility. Borrowed capital, in other words, is doing at least as much work as equity here, and a material portion of it is earmarked for construction that has not yet happened. That makes delivery — sites energised, halls filled, contracts signed — the variable that determines whether US$4 billion looks like a full price or a cheap one in three years.

Buying the Two Things AI Capacity Is Actually Short Of

Land and steel are not the bottleneck in data centre development. Power is. Across most of Europe and North America, connecting a large new load to the grid means joining a queue measured in years, and paying industrial electricity prices that have become one of the largest single line items in the cost of running AI hardware. Cooling is the second constraint: racks built for AI training draw many times the power of traditional enterprise kit, and the heat has to go somewhere. atNorth’s portfolio addresses both structurally rather than incrementally — renewable power contracts in markets with hydro and geothermal generation, direct liquid cooling that moves coolant to the chips instead of chilling the whole room, and district heat reuse that pipes waste warmth into local heating networks rather than dumping it into the air.

Set against that, US$4 billion for eight facilities and a development pipeline is a bet that secured power is the scarce commodity and everything else is commodity. The stated position of more than 1GW across operational and pipeline sites is the number that matters, because a gigawatt of connected capacity is significantly harder to assemble today than a gigawatt of building shell. What the companies have not broken out is how much of that gigawatt is energised and earning revenue versus reserved or queued — a distinction that separates an operating platform from an option on one.

A Minority Stake, a Majority Cheque, and a Lot of Debt

Equinix’s 34% is the structurally interesting part of this deal. Equinix’s core business is interconnection — dense, network-rich facilities in metropolitan markets where the value lies in who else is in the building. Nordic hyperscale campuses built for training runs are a different asset class with different economics: fewer, larger customers, longer leases, thinner margins per megawatt, far heavier capital intensity. Taking a minority position lets Equinix participate in that growth, and offer its customers access to it, without consolidating the construction programme or the leverage that funds it. It is a pattern the industry has used repeatedly to add wholesale-scale capacity alongside a retail colocation core.

The trade-off is control. atNorth will continue to operate independently under its own brand and management, with CPP Investments holding the controlling stake. Whatever commercial integration Equinix envisages — routing customers north, linking Nordic compute to its interconnection fabric — rests on a commercial relationship and shareholder influence rather than ownership. For customers, the practical question is whether that translates into something contractually real, such as network on-ramps and cross-connect arrangements between the two estates, or remains a statement of intent. Neither company has yet described what the operating relationship looks like in practice.

The Distance Problem the Nordic Thesis Still Has to Answer

Equinix Nordics managing director Regina Dahlström framed the acquisition around organisations needing infrastructure that brings together “data, clouds, networks and inference services” and around building interconnected hubs. That language is worth reading closely, because inference — running a trained model to answer a user’s query — is latency-sensitive in a way that training is not. Training is a batch workload; it can happen a thousand miles from the customer and nobody notices. Inference serving European end users generally wants to sit close to them.

The Nordic proposition is exceptionally strong for the first category and harder for the second, particularly at the Icelandic end of the footprint, where the physics of distance sets a floor on round-trip times regardless of how much fibre is lit. That does not undermine the deal; training, fine-tuning and high-performance computing represent enormous and growing demand, and heat reuse and cheap renewable power are genuine structural advantages. But it does mean the inference and interconnection framing is the claim to test over the next few years, not the one to assume. Kristinsson’s disclosure that atNorth has secured new hyperscale contracts since signing, and added a development site in Norway, points to where demand is actually landing — though the companies have not identified the customers, the capacity involved, or the contract terms.

Background

atNorth grew out of the Icelandic data centre sector, where geothermal and hydroelectric generation made it possible to run compute-intensive workloads at electricity prices and carbon intensities unavailable in most of Europe. Partners Group acquired the business in 2022 and expanded it into a five-country, eight-facility Nordic platform aimed squarely at enterprise and hyperscale demand for AI, cloud and high-performance computing. The company’s positioning depends on high-density engineering — liquid cooling, heat reuse, sites designed from the outset for power-hungry racks rather than retrofitted from conventional colocation.

Equinix is a global operator of interconnected data centres, historically strongest in metropolitan facilities where the commercial value comes from the density of networks, clouds and enterprises present in the same building. The Nordics have drawn sustained investment from operators and institutional capital over the past decade, precisely because the combination of renewable generation, cold ambient conditions and stable regulation addresses the constraints that limit development in more crowded European markets. CPP Investments, which manages assets for the Canada Pension Plan, has been an active allocator to digital infrastructure as an asset class with utility-like duration.

Sources

Source: Why Equinix & CPP Investments Have Acquired AtNorth — Data Centre Magazine’s report on the completed US$4 billion acquisition, including the equity split, the US$4.1 billion financing package and comments from Equinix, CPP Investments and atNorth executives.