Just four years ago, the data center industry was abandoning public markets.

Beginning with Blackstone’s $10B acquisition of QTS in 2021, a run of take-private deals swept the sector as CyrusOne, CoreSite and Switch all subsequently disappeared from public exchanges over the following months. By 2022, the number of listed data center firms had dwindled to just two.

Now, the pendulum is swinging in the other direction.

Over the last year, nearly a dozen data center companies have gone public, have filed for an initial public offering or have been reported to be exploring one — with the pace of this shift accelerating over the past three months.

Recent IPOs include Blackstone Digital Infrastructure Trust, Brookfield-backed colocation provider Csquare, and controversy-plagued Texas data center startup Fermi. Meanwhile, Switch and Singapore-based DayOne have confidentially filed for IPOs, SoftBank-backed SB Energy has publicly filed, and artificial intelligence data center specialist Nscale is reportedly preparing a listing. Major digital infrastructure players Vantage Data Centers, CyrusOne, Blue Owl, DataBank and EdgeCore are all reportedly at least exploring IPOs.

The fact that Switch and CyrusOne — both taken private during the industry’s M&A wave — are considering returns to public markets reflects a fundamental shift that is underway in the data center financing ecosystem.

Yet industry leaders say there is no single force driving the sector’s run of IPOs.

Rather, with the price tag of the AI infrastructure boom in the trillions of dollars, data center firms of all stripes are pursuing an increasingly diverse mix of funding sources, and that means turning to an array of public equity strategies to finance their growth.

“There’s not one blanket answer” as to why data center firms are suddenly turning back to public markets, said David Guarino, head of global data center and tower research at Green Street. “The capital requirements to build data centers are getting so large that everyone's getting creative to find new ways to attract capital.”

“All of them have a different reason to go public,” he added.

When data center firms all but disappeared from public markets in 2021 and 2022, industry insiders attributed it to a fundamental shift in the sector’s dominant business model. While the data center business had been synonymous with multitenant colocation, growth was increasingly being driven by the development of large-scale campuses and single-tenant facilities for major cloud providers like Amazon Web Services, Microsoft and Google. This trend has accelerated with the AI arms race.

Unlike traditional colocation facilities, these massive campuses require years of investment before generating revenue and offer “lumpy” returns as they are leased up in a single transaction — a model not conducive to the predictable quarter-by-quarter performance that Wall Street typically looked for. Private capital proved to be a better vehicle for funding the rapid development needed to meet surging demand, investment experts said.

However, the return to public markets doesn't reflect a pullback from the private capital that has been fueling the industry’s growth, industry leaders told Bisnow. Instead, it reflects the sheer scale of the industry’s capital requirements and growing specialization of a maturing industry, with companies increasingly turning to public offerings to solve a range of specific liquidity problems.

The diversity of companies pursuing public listings underscores that there is no single factor driving data centers’ return to Wall Street. The IPO pipeline entails some of the sector’s largest, most established operators, like Vantage and CyrusOne, alongside startups like Fermi and SB Energy that have little track record and few, if any, operating assets. It also includes companies with vastly different business models, from retail colocation providers like Csquare to public REITs launched by investment giants Blackstone and Blue Owl Capital.

These firms are looking to IPOs to solve very different capital and liquidity needs, and they are pursuing varied approaches to the public markets, said Jeffrey Moerdler, a longtime data center and telecom attorney who chairs the data center and digital infrastructure practice at Haynes Boone.

“As the size of the companies and the cash needed to develop new sites has grown exponentially over the last few years, the creativity required is different. There’s no one-size-fits-all rules here,” Moerdler said. “A public offering, whether it's for a small portion, a large portion or all of a company's value, offers a lot of opportunities and gives you an ability to create a more diverse kind of capital stack for the company.”

One factor pulling some companies toward Wall Street is the natural life cycle of private equity ownership. Green Street’s Guarino said many of the investment firms that backed data center companies and financed their rapid expansion in the past decade are reaching the end of their investment horizons and looking for exits.

But after years of skyrocketing valuation, some of these companies have such a high price tag that there are few potential buyers, making an IPO an attractive exit ramp.

Similarly, the surge in valuations of individual data center assets has created another financing challenge for developers that some of the largest IPOs in the pipeline are meant to address: how to monetize completed, fully leased projects to fund new development. With hyperscale campuses now worth billions of dollars, the pool of buyers willing to accept the stable but relatively modest returns generated by stabilized facilities has narrowed.

It is a dynamic that has already driven the rapid growth of data center asset-backed securities and CMBS deals, which have exploded as a tool for developers to recycle capital tied up in their leased data centers.

Now, the largest institutional investors are launching public REITs to address the same need. Blackstone Digital Infrastructure Trust, which completed its IPO in May, is structured to acquire stabilized hyperscale data centers, providing developers with liquidity while providing REIT investors with the predictable, if modest, cash flows they seek. Investment giant Blue Owl is now also reportedly planning to take a similar REIT public, seeding it with around $6.5B of its own stabilized data center assets.

“Those are created out of a need for the sector,” Guarino said. “Developers want to sell stabilized data centers, presumably to in turn take those proceeds and go build more data centers.”

Data centers aren’t just returning to Wall Street as REITs — the recent wave of IPOs reflects a wide range of capital strategies and deal structures. Brookfield’s July listing of Csquare utilized a unique structure in which the firm tapped into public markets for cash but left Brookfield with majority control of the company.

Other developers have looked to go public before establishing meaningful operating track records or even owning a single data center asset. These firms aim to leverage the fact that retail investors want in on the data center boom but have few options for pure data center plays to build an initial pool of development capital.

Hyperscale development startup Fermi — a company co-founded by former U.S. Energy Secretary Rick Perry — went public in October 2025 despite having no revenue and no projects underway. SB Energy, which filed for an IPO earlier this month, is reportedly seeking a valuation of more than $50B despite still developing its first campus.

“It’s an opportunity to take advantage of a good environment,” Guarino said. “I think a lot of people are looking to capitalize on that.”