Research Lab, Cloud Factory, or Colo Warehouse: A Field Guide to Data Centers

When people hear that a “data center” is coming to their county, they often picture one generic warehouse full of blinking servers. In practice, the industry builds at least three genuinely different kinds of facilities under that name, and the difference matters: who owns it, what it's for, and how much say a community will ever have in what happens there next.

The rarest and most narrowly defined type is the research computing center: publicly funded supercomputers built to answer scientific questions rather than sell a product. The U.S. Department of Energy operates the world's three fastest supercomputers, Frontier at Oak Ridge National Laboratory, Aurora at Argonne National Laboratory, and El Capitan at Lawrence Livermore National Laboratory, all housed inside government-run national labs rather than commercial campuses. Frontier reached 1.1 exaflops on the standard performance benchmark and roughly seven exaflops of AI performance when it launched in 2022, and DOE says its exascale systems support work including climate modeling, fusion reactor materials design, and COVID drug research. Aurora, released to outside scientists in January 2025, has since been used to discover new battery materials, design drugs, and accelerate fusion energy research. These systems are open to outside academic researchers who apply for time on them, a structure almost nothing else on this list shares, and they are essentially never what a community is fighting over at a local zoning hearing, since national labs sit on federal land rather than land a private developer is trying to rezone.

Most of what actually gets proposed in a town today falls into a second category: commercial data centers built and owned by a single company to run its own products, most often a hyperscale cloud or AI campus owned outright by Amazon, Microsoft, Google, Meta, or an AI lab like OpenAI or xAI. This is also the fastest-growing category by far. Hyperscale operators controlled 44% of the world's data center capacity in the first quarter of 2025, according to Synergy Research Group, which projects that share will reach 61% by 2030. A commercial hyperscale campus typically has one tenant, meaning the company that builds it controls every future decision about what gets added, cut, or repurposed on that site.

The third category is colocation: facilities built and operated by a specialist company that leases out space, power, and cooling to many different customers rather than running its own product on the servers inside. Equinix and Digital Realty dominate the two main flavors of this business, retail colocation (many smaller tenants) and wholesale colocation (fewer, larger ones), respectively, with QTS, Iron Mountain, CoreSite, and newer entrants like Vantage Data Centers and Applied Digital also competing for share. The U.S. colocation market is on pace to reach $46.84 billion in 2026 and grow to $72.37 billion by 2030, increasingly driven by AI-focused tenants such as CoreWeave and Lambda Labs renting GPU-dense space rather than traditional enterprise IT. A colocation facility's tenant list can and does change over its lifetime, which makes it harder for a community to know years in advance exactly who will be operating inside.

A fourth category, enterprise-owned data centers that a bank, hospital, or retailer builds purely to run its own internal IT, still exists but is shrinking fast: Synergy pegs on-premise enterprise capacity at 34% of the world total in early 2025, down from 56% just six years earlier, and forecasts it will fall to 22% by 2030 as more companies shift workloads to the cloud. That leaves hyperscale commercial campuses and colocation as the two types a growing share of new local projects will actually be, with research computing centers remaining a rare, federally sited exception most communities will never encounter directly.

For a resident trying to make sense of a groundbreaking announcement nearby, the fastest way to tell these apart is asking one question: who owns it, and who's actually going to work there. A single company's name on the permit generally means a hyperscale commercial campus. A property developer or REIT's name usually means colocation, with tenants to be named later. And a federal agency's name means, almost certainly, that it isn't open to the public at all.