ZutaCore, a developer of two-phase, direct-to-chip liquid cooling technology, has raised a $100 million Series C round to expand its cooling platform for AI data centers, according to a report published by Pulse 2.0 on June 6, 2026. The reported purpose of the raise is to scale the company’s platform as AI workloads push rack power densities beyond what air cooling can handle.
Executive Summary
The headline fact is simple: ZutaCore has secured $100 million in Series C funding to expand its AI data center cooling platform. At that size, the round places ZutaCore among the better-capitalized independent players in liquid cooling, a segment that has moved from niche engineering concern to strategic infrastructure category in roughly three years.
Why it matters: modern AI accelerators draw hundreds of watts per chip, and racks packed with them can reach power densities that air-based cooling physically cannot dissipate economically. That has turned the cooling layer — cold plates, coolant distribution units, dielectric fluids, and the engineering services around them — into one of the most actively funded niches in data center infrastructure. A $100 million commitment to a two-phase cooling specialist signals that investors believe the transition to liquid cooling is durable, and that there is room in the market beyond the largest incumbent thermal vendors.
Capital Keeps Flooding the Cooling Layer
Cooling used to be a line item buyers negotiated down. In the AI build-out it has become a gating constraint: if you cannot remove the heat, you cannot deploy the chips, no matter how much power or floor space you have. That inversion explains why investors have poured money into thermal specialists across every approach — single-phase cold plates, immersion tanks, rear-door heat exchangers, and two-phase systems like ZutaCore’s. A $100 million Series C for a company focused specifically on the AI cooling problem fits squarely into that pattern and suggests the funding window for the category remained open as of mid-2026.
The strategic logic for investors is that cooling vendors sit at a chokepoint. Every generation of AI accelerator raises thermal design power — the amount of heat a chip is engineered to shed — and each increase expands the addressable market for liquid cooling retrofits and new builds alike. The risk, equally, is that a crowded field of well-funded competitors compresses margins before any single vendor achieves scale.
What Two-Phase Cooling Actually Is — and Why It Is Contested Ground
Most liquid cooling deployed today is single-phase direct-to-chip: water or a water-glycol mix flows through a cold plate bolted to the processor, absorbs heat, and carries it away without changing state. Two-phase cooling instead uses an engineered dielectric fluid — a liquid that does not conduct electricity — that boils on contact with the hot chip. The phase change from liquid to vapor absorbs far more energy per unit of fluid than simple warming does, which is the core efficiency argument for the approach. ZutaCore has long positioned its platform around this waterless, two-phase principle, marketing it as eliminating the risk of water leaks onto expensive electronics.
The counterarguments are practical rather than theoretical. Two-phase systems are mechanically more complex, the specialty fluids cost more than water, and the fluorinated chemistries commonly used in the category face growing regulatory scrutiny in several jurisdictions. Meanwhile single-phase cold plates have become the default choice for the current generation of AI racks because hyperscalers understand water. ZutaCore’s raise is, implicitly, a bet that as chip power keeps climbing, the physics advantage of phase change wins share back from the simpler incumbent approach. The release, as reported, does not detail how the company plans to argue that case to buyers.
Winners, Losers, and the Consolidation Question
If the round accelerates ZutaCore’s manufacturing and deployment capacity, the immediate beneficiaries are data center operators seeking alternatives to water-based cooling — particularly in facilities where water usage or leak risk is a board-level concern. Chipmakers benefit from any credible expansion of thermal headroom, since cooling capability directly constrains how they can specify future products.
The open competitive question is whether independent cooling specialists remain independent. The thermal management sector has seen sustained acquisition interest from large industrial and infrastructure players, and a well-funded specialist with differentiated technology is a natural target. A Series C of this size can be read two ways: as fuel for a run at standalone scale, or as valuation-building ahead of eventual consolidation. The reporting available does not indicate which trajectory ZutaCore’s investors have in mind.
Background
ZutaCore is a specialist in waterless, two-phase, direct-to-chip liquid cooling, an approach it has promoted for years as a safer and denser alternative to water-based cold plates. The company sells the hardware and supporting infrastructure that let standard servers shed heat through a dielectric fluid that vaporizes on the processor, and it has positioned that platform squarely at the AI data center market as accelerator power consumption has climbed.
The broader context is a rapid industry transition: liquid cooling moved from a high-performance-computing niche to mainstream AI infrastructure in the mid-2020s, drawing venture capital, private equity, and acquisition interest across cold plate, immersion, and two-phase vendors alike. ZutaCore’s Series C lands in the middle of that capital wave.
Data Center Dynamics has published a comparison of the two competing approaches to direct-to-chip liquid cooling — single-phase, where a liquid coolant absorbs heat and stays liquid, and two-phase, where the coolant boils at the chip and carries heat away as vapor — framed around a single question: which is right for AI data centers in 2026?
That the trade press is treating this as a live, unsettled debate is itself the news. As AI accelerators push per-chip power beyond what air can remove, direct-to-chip liquid cooling has moved from exotic to expected, and the industry has not yet converged on which of the two variants will define the next generation of facilities.
Executive Summary
Direct-to-chip liquid cooling puts a cold plate in contact with the processor and runs coolant through it, removing heat far more efficiently than blowing air across a heatsink. Within that category, two architectures are competing. Single-phase systems circulate a liquid — typically treated water or a water-glycol mix — that warms up as it passes over the chip and is cooled elsewhere. Two-phase systems use an engineered dielectric fluid that boils directly on the cold plate; the phase change from liquid to vapor absorbs a large amount of heat at a nearly constant temperature, and the vapor is condensed back to liquid to repeat the cycle.
The choice matters because it is not easily reversible. Coolant chemistry, pressure ratings, manifolds, coolant distribution units, and facility water loops are all designed around one approach or the other. An operator committing today to a multi-hundred-megawatt AI campus is effectively placing a bet on which architecture will best handle the chips of 2028 and beyond — and on which supply chain, service model, and regulatory environment will mature fastest.
The DCD piece lands at the moment this bet has become unavoidable. Air cooling handled decades of servers; single-phase liquid is handling today’s AI racks; the open question is whether tomorrow’s thermal densities force the industry through a second transition to two-phase — or whether single-phase engineering keeps stretching to meet the need.
Why the Question Exists at All
For most of computing history, this debate would have been academic. Air cooling was cheap, well understood, and sufficient. AI training hardware broke that equilibrium: modern accelerators concentrate so much power in so little silicon that the limiting factor is no longer the data center’s chillers but the last few millimeters between the chip surface and the coolant. Direct-to-chip designs attack exactly that bottleneck, which is why they have become the default assumption for new AI builds.
Single-phase direct-to-chip won the first round largely on familiarity. Water-based cooling loops are a known quantity — data center engineers, plumbers, and component suppliers have decades of experience with pumps, valves, and leak management for liquid water. Two-phase systems promise something physically compelling in exchange for novelty: boiling a fluid absorbs latent heat, meaning the coolant can soak up substantially more energy without a large temperature rise, and it does so uniformly across the hottest parts of the chip.
The Engineering Trade-Offs, Plainly Stated
Single-phase’s strengths are operational. The fluids are inexpensive and benign, the components are commodity, leaks are messy but manageable, and the industry’s existing skills transfer directly. Its weakness is headroom: as chips run hotter, single-phase designs must push more liquid, faster, through smaller channels, and must manage the temperature gradient across the cold plate — the chip’s inlet edge runs cooler than its outlet edge, which complicates thermal design as power climbs.
Two-phase inverts that profile. Boiling heat transfer offers high performance and near-isothermal operation — the whole cold plate sits close to the fluid’s boiling point — which is attractive precisely where single-phase strains. But the costs are real: engineered dielectric fluids are far more expensive than water, systems must manage vapor and pressure rather than simple liquid flow, servicing a sealed two-phase loop is a different discipline, and several candidate fluids belong to chemical families (such as PFAS-related compounds) facing regulatory scrutiny in major markets. A technically superior heat-transfer mechanism does not automatically win if its fluid supply or compliance picture is uncertain.
Who Wins and Loses on Each Path
If single-phase continues to stretch, the winners are incumbents: established cooling vendors, existing supply chains, and operators who have already deployed water-based loops and want continuity. Chip designers absorb more of the burden, engineering packages and cold plates to live within single-phase limits. If two-phase becomes necessary, the advantage shifts toward specialist fluid and systems companies, and toward operators willing to build new competencies early — with the corresponding risk of backing immature technology.
There is also a middle path worth naming: hybrid facilities, where single-phase handles the bulk of the load and two-phase (or other advanced techniques) is reserved for the hottest components or highest-density halls. Many operators will likely hedge this way rather than commit wholesale, which suggests the 2026 answer to “which is right?” may genuinely be “both, in different places” — an unsatisfying but rational outcome for an industry making thirty-year infrastructure bets on three-year chip roadmaps.
What This Means for the Broader Market
The cooling decision cascades outward. Coolant choice affects how much heat a facility can reject to the outside world and at what temperature, which shapes heat-reuse opportunities and water consumption. It affects colocation providers, who must decide which architecture to offer tenants whose hardware they do not control. And it affects the retrofit market: the vast installed base of air-cooled data centers faces different conversion economics depending on which liquid architecture prevails. Standardization efforts — common connectors, fluid specifications, and safety practices — will matter as much as raw thermal performance in determining which camp scales fastest.
Background
Data centers spent decades cooled almost entirely by air: chilled air pushed through raised floors and hot aisles, with per-rack power low enough that fans and heatsinks sufficed. The AI buildout broke that model. Training clusters pack accelerators drawing unprecedented power into dense racks, pushing the industry through its biggest thermal transition since the mainframe era — first to rear-door heat exchangers and now to liquid brought directly to the chip.
Data Center Dynamics, the publication behind this comparison, is a long-running trade outlet covering data center design and operations. That its editorial attention has moved from whether to liquid-cool to which liquid architecture to choose reflects how quickly direct-to-chip cooling has become the baseline assumption for AI infrastructure — and how much unresolved engineering debate still sits beneath that baseline.
Carrier Ventures, the venture arm of HVAC and building-systems giant Carrier Global, announced on April 28, 2026 that it is expanding its investment in ZutaCore, a maker of two-phase, direct-to-chip liquid cooling technology. The stated purpose is to scale liquid cooling for AI data centers, where rapidly rising chip power densities are outrunning traditional air cooling. The announcement, distributed via PR Newswire, did not disclose the size or terms of the expanded investment.
Executive Summary
Carrier first backed ZutaCore with a strategic investment and partnership announced in late 2024. This follow-on commitment signals that Carrier sees direct-to-chip cooling — hardware that removes heat at the processor itself rather than from the room around it — as central to its data center strategy, not a side experiment. For a company whose traditional data center business is facility-level equipment such as chillers and air handlers, that is a meaningful shift in where it believes thermal value will be captured.
The ‘why now’ is straightforward: AI accelerators have pushed rack power draws from the tens of kilowatts into the hundreds, a range where moving heat with air alone becomes physically and economically impractical. Liquid cooling has moved from niche to necessity for AI deployments, and every major thermal-management vendor is racing to own a piece of the resulting stack. The open question is whether the announcement represents scaled commercial traction or primarily a strategic option on a still-contested technology — the release headline promises scale, but the syndicated text offers no deployment figures, customer names, or dollar amounts to measure it by.
Why an HVAC Giant Wants Inside the Rack
Carrier’s historical position in data centers is at the facility level: chillers, cooling towers, and air-handling systems that condition entire halls. Direct-to-chip cooling changes where the critical engineering happens. When heat is captured at the silicon by cold plates and carried away in fluid loops, the highest-value thermal decisions move from the building to the rack — territory contested by specialists like ZutaCore, CoolIT, and Motivair, and by IT-side players such as Vertiv and the server manufacturers themselves. An expanded investment in ZutaCore is a hedge against disintermediation: if Carrier does not have a credible chip-level offering, it risks being relegated to supplying the commodity heat-rejection equipment at the end of someone else’s thermal chain.
There is also a plausible offensive logic. A vendor that can pair chip-level heat capture with its own facility-scale heat rejection can sell an integrated thermal chain — from cold plate to cooling tower — which is attractive to operators who currently stitch that chain together from multiple vendors. Whether Carrier and ZutaCore intend to productize such an integrated offering is not stated in the announcement, but it is the strategic prize this kind of pairing points toward.
Two-Phase Cooling, Explained — and Why It Is Contested Ground
Most liquid cooling deployed for AI today is single-phase: water or a water-glycol mix flows through a cold plate on the chip, warms up, and carries the heat away. ZutaCore’s approach is two-phase — a dielectric (non-electrically-conductive) fluid boils directly on the cold plate, absorbing large amounts of heat as it vaporizes, then condenses elsewhere in the loop. The physics advantage is real: boiling absorbs far more heat per unit of fluid than simple warming, which matters as individual accelerator packages climb toward and beyond kilowatt-class heat output. Because the fluid is non-conductive, a leak is also less catastrophic than a water leak inside a server.
The counterweight is ecosystem maturity. Single-phase water cooling is the volume standard for current AI reference designs, with an established supply chain, well-understood operating practices, and trained technicians. Two-phase systems introduce different fluids, pressures, and service procedures, and specialty dielectric fluids carry their own cost and, depending on chemistry, environmental scrutiny. The bet embedded in Carrier’s investment is that next-generation chip heat densities will strain single-phase designs enough to open a mainstream window for two-phase — a defensible thesis, but one the market has not yet settled.
What the Announcement Does and Does Not Substantiate
Read carefully, this is a statement of investor conviction, not a disclosed commercial milestone. A follow-on investment from a strategic corporate backer is a genuine positive signal: corporate venture arms rarely double down on portfolio companies whose technology their own engineers have found wanting. It suggests the 2024 partnership produced enough validation to justify more capital.
What the syndicated release does not provide is the evidence a buyer or investor would need to gauge momentum: the investment amount, ZutaCore’s resulting valuation or Carrier’s stake, named customers, deployed megawatts, or manufacturing capacity commitments. ‘Scale liquid cooling for AI data centers’ is a direction, not a metric. That does not make the announcement empty — strategic capital and an incumbent’s distribution reach are real assets for a smaller technology vendor — but the gap between the headline’s ambition and the disclosed specifics is worth keeping in view. The same skepticism should be applied evenly: competing single-phase vendors’ claims of inevitability are also assertions, not settled fact, in a market where chip roadmaps can shift the thermal calculus every generation.
Background
Carrier Global, spun off from United Technologies in 2020, is one of the world’s largest providers of heating, ventilation, air conditioning, and refrigeration systems, with a long-standing data center business centered on facility-level cooling equipment. ZutaCore, founded in the mid-2010s with roots in Israel, developed a waterless two-phase direct-to-chip cooling platform aimed at high-density computing. The two companies first linked up in late 2024, when Carrier announced a strategic investment and partnership with ZutaCore as part of a broader industry pivot toward liquid cooling.
That pivot has been driven by the AI buildout: accelerator-dense racks have pushed power and heat densities beyond what air cooling can economically handle, turning liquid cooling from a specialty into a core requirement of new AI data center designs and drawing HVAC incumbents, power-infrastructure vendors, and startups into direct competition for the rack thermal stack.
