Accelsius
Accelsius develops two-phase direct-to-chip liquid cooling systems using non-conductive dielectric refrigerant for AI, HPC, and hyperscale data centers. The NeuCool platform serves hyperscalers, neocloud providers, colocation operators, and research institutions across North America and Europe.
- Company typePrivate
- Founded2022
- HeadquartersAustin, United States
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Accelsius does
Accelsius, founded in 2022 and headquartered in Austin, Texas, is a subsidiary of publicly-traded Innventure Inc. (NASDAQ:INV) that develops two-phase direct-to-chip (D2C) liquid cooling systems for AI and high-performance computing data centers. The company's NeuCool platform uses a non-conductive, ASHRAE A1-rated dielectric refrigerant supplied by Honeywell (with 0 ozone depletion potential, low global warming potential, and PFAS-free formulation) to cool processors at 4,500W+ per socket with 0.020°C/W thermal resistance. The product family spans engineered two-phase cold plates (Vaporators), an Intelligent Coolant Distribution Unit (iCDU), the NeuCool Multi-GPU configuration, the rack-scale IR150 integrated cooling rack (up to 150kW), the row-based MR250 CDU (up to 250kW across multiple racks), the NeuCool TSR thermal simulation rack, and the NeuView management software that integrates with NOC, DCIM, and server management through standard protocols.
The business is centered on hardware sales through an enterprise field-sales motion combined with a 100% channel-partner philosophy that includes selling, service, MEP, and integration partners (WESCO, Computacenter, Sycomp, BITS, ECS, Silverback60, Unicom, Jacobs Engineering, TSS, Compu-Dynamics) plus strategic OEM relationships with Vertiv, Celestica, Supermicro, and Dell. Revenue is generated from NeuCool system sales, professional services (site assessment, deployment, lifecycle maintenance), and warranty/support contracts (NeuGuard 2/3/5-year plans). Customer segments span hyperscale operators and neocloud providers (the primary vertical, anchored by a 300MW DarkNX deployment in Ontario), colocation providers (Equinix, Telehouse, Global Switch, iM Data Centers, Nordik), enterprise/mid-market operators (the IR150 plug-and-play target), and HPC/research institutions (TACC, University of Texas at Arlington under ARPA-E).
Operationally, Accelsius is in a scaling phase: cumulative fundraising of approximately $89 million across Series A and Series B ($65M at a $665M post-money valuation from Johnson Controls and Legrand), a $50M+ contracted production backlog entering 2026, an active Austin manufacturing expansion, ongoing product launches, and a May 2026 leadership transition that installed John Hewitt — former President of Vertiv's $3.5B Americas business — as CEO with founding CEO Josh Claman moving to Executive Chairman.
Accelsius firmographics
Firmographics- Name
- Accelsius
- Legal name
- Accelsius LLC
- Website
- https://accelsius.com
- Company type
- Private
- Founded year
- 2022
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Accelsius develops two-phase direct-to-chip liquid cooling systems using non-conductive dielectric refrigerant for AI, HPC, and hyperscale data centers. The NeuCool platform serves hyperscalers, neocloud providers, colocation operators, and research institutions across North America and Europe.
- Ownership category
- akta.pro rank
Accelsius industry classification
Industry- Product category
- Data Center Liquid Cooling
- NAICS
- Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334)
- SIC
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Refrigeration & Service Industry Machinery (3580)
- akta.pro primary industry
- Cooling Systems & Thermal Management (CRAC/CRAH, Chillers, Liquid Cooling) (HDABAKAD)
- akta.pro secondary industry
- AI Datacenter Power, Cooling & Racks (liquid cooling, power delivery) (HDAAAAAH)
Keywords
Where Accelsius is headquartered
LocationHeadquarters
- HQ city
- Austin
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Accelsius business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales
Revenue model
- Hardware Sales - NeuCool CDU Systems: Sale of two-phase liquid cooling hardware including iCDUs, vaporators, manifolds, reservoirs, and integrated rack solutions (IR80, IR150, MR250). Products sold directly and through channel partners.
- Professional Services: Pre-production site assessment and solution design modeling, deployment and integration services, preventative and corrective maintenance, remote and on-site troubleshooting, technician dispatches for training and asset support. Tailored SLAs for full lifecycle management.
- Warranty and Support Contracts: NeuGuard 2, 3, and 5-year limited warranty backed by CNA. Additional server and integration warranties through partners Unicom and Park Place.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | Enterprise cooling solutions |
Go-to-market motion3 records
Distribution channels6 records
Marketing channels7 records
Accelsius product offering
Product offeringCore offering
Accelsius designs and manufactures the NeuCool platform, a two-phase direct-to-chip liquid cooling system for AI and high-performance computing data centers. The system uses a non-conductive dielectric refrigerant to cool CPUs and GPUs at 4500W+ per socket, eliminating IT equipment damage risk from leaks. The platform includes the NeuCool IR150 integrated rack (up to 150kW), MR250 row-based CDU (up to 250kW), Multi-GPU cold plate configurations, and the NeuView management software with DCIM integration.
Product overview
NeuCool is a complete two-phase direct-to-chip liquid cooling platform using dielectric refrigerant entirely safe for electronics. The platform consists of three main cooling products: the NeuCool IR150 (integrated rack-level solution up to 150kW), the NeuCool MR250 (row-based CDU for 250kW across multiple racks), and the NeuCool Multi-GPU configuration for advanced GPU servers. Supporting system components include the NeuCool iCDU (intelligent coolant distribution unit), Vaporators (engineered cold plates capable of 4500W+ per socket), Manifolds, and Reservoir. The NeuView software management system provides integrated monitoring and control with DCIM/NOC connectivity. The platform supports CPU and GPU cooling including Intel Sapphire Rapids/Emerald Rapids, AMD EPYC Genoa/Turin, NVIDIA Grace/H100/H200/B200, and AMD MI325X/MI355X. Products are manufactured in North America with global deployment across U.S., Canada, and Europe. The NeuCool HyperStart program supports hyperscale operators in validating the technology, while the TSR (Thermal Simulation Rack) and LSS (Liquid Simulation Sled) enable testing and validation.
Differentiator
Problem solved
Functional benefit
Brands
- NeuCool: Proprietary two-phase direct-to-chip liquid cooling platform for AI and high-performance computing data centers. Includes products such as NeuCool IR150 (150kW integrated rack), NeuCool MR250 (250kW row-based CDU), and NeuCool Vaporator components.
Products and services
- NeuCool IR150 Fully integrated rack-level cooling solution combining a two-phase Coolant Distribution Unit, 42U of IT rack space, and built-in liquid and vapor manifolds in a single 800mm-wide enclosure offering up to 150kW of cooling capacity. Designed as a plug-and-play system for high-density two-phase-enabled deployments, optimized for edge deployments and enterprise operators.
- NeuCool MR250 Row-based two-phase Coolant Distribution Unit capable of cooling 1-2 racks up to 250kW total, supporting 1x250kW rack and 2x125kW rack configurations and warm rack expansions. Industry's first two-phase row-based CDU with integrated reservoir, brazed plate heat exchanger, redundant hot-swappable components, and compatibility with dielectric refrigerants R-1233zd(E) and R-515B.
- NeuCool Multi-GPU Multi-GPU configuration featuring optimized vaporators (engineered two-phase cold plates) designed to cool 4-way and 8-way GPU configurations including NVIDIA and AMD GPUs, with serial plumbing for simplified server integration.
- NeuCool TSR (Thermal Simulation Rack) First-of-its-kind rack-level thermal bank engineered to test, validate, commission, and showcase liquid cooling capabilities at chip, sled, and rack level. Provides up to 250kW of thermal load to simulate high-density racks without requiring actual AI-HPC servers.
- NeuCool LSS (Liquid Simulation Sled) Chip-level load simulation module providing up to 10 LSS units at 5kW each for thermal testing and validation of cooling systems.
- Professional Services and NeuGuard Warranty Programs Lifecycle services for NeuCool deployments including pre-production site assessment and solution design modeling, deployment and integration services, preventative and corrective maintenance, remote and on-site troubleshooting, and technician dispatches for training and asset support. NeuGuard 2, 3, and 5-year limited warranty programs backed by CNA, with additional server and integration warranties through partners Unicom and Park Place, and tailored SLAs for full lifecycle management.
Quantifiable outcome
- 35-44% annual OpEx savings vs single-phase direct-to-chip
- +6 more outcomes
Companies that use Accelsius
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles3 records
Accelsius technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Accelsius partnerships and signals
Strategic signalPartnerships
18 partnerships are on record, tiered flagship and core.
- DarkNXflagshipDeployment agreement for 300MW AI data center campus in Ontario, Canada - expected to be largest two-phase direct-to-chip deployment to date. First phase includes two 65MW facilities with deployments in 2026 and 2027. DarkNX selected NeuCool for chip-level cooling alongside Johnson Controls chiller systems.
- Nordik Data CenterscorePartnership to build next-generation AI data center and Co-Innovation Lab in Montreal, Canada. Collaboration to deliver data centers with step-change in sustainability.
- EquinixcoreCo-Innovation Facility partnership at Equinix Ashburn location showcasing NeuCool technology for liquid cooling demonstrations.
- iM Data CenterscorePartnership to bring sustainable high-performance cooling solutions to iM Data Centers' Miami facility. Co-Innovation Lab for demonstrating NeuCool technology in HPC environments.
- Global SwitchcoreEuropean showcase partnership at Global Switch London Docklands data center featuring live liquid cooling demonstration showroom. Collaboration to address rising AI and high-density computing demands.
- TelehousecoreCo-Innovation Lab at Telehouse's Liquid Cooling Lab in London, UK for demonstrating NeuCool two-phase cooling technology.
- Dell TechnologiescoreTechnology partnership for NeuCool-enabled server solutions. Featured at Dell Customer Solution Center showcasing B200 two-phase server solution.
- SupermicrocoreServer OEM integration partner for NeuCool two-phase cooling solutions. Supermicro part of strategic partner ecosystem.
- VertivcoreStrategic partner in data center infrastructure ecosystem. Collaboration for integrated cooling solutions.
- Jacobs EngineeringcoreMEP partner providing independent validation of NeuCool performance. Created reference designs for 10MW data center comparing single-phase vs two-phase cooling. Analysis demonstrates 35-44% OpEx savings and 8-17% TCO savings.
- University of Texas at ArlingtoncoreARPA-E COOLERCHIPS program collaboration for hybrid cooling technologies. Research partnership advancing two-phase cooling science with thermal test vehicles and microfluidics research.
- NVIDIAcoreNVIDIA Inception Program member. NeuCool technology supports NVIDIA GPU platforms including H100, H200, B200. Featured at NVIDIA GTC 2026 with NeuCool IR150 launch.
- HoneywellcoreSupplier of high-performance dielectric refrigerant used in NeuCool systems. Refrigerant is ASHRAE A1 safety rated, non-corrosive, non-flammable, with 0 ODP and low GWP.
- Silverback Data Center SolutionscoreAuthorized service partner and selling partner for NeuCool product deployment and lifecycle services. One of multiple channel partners in certified partner program.
- Unicom EngineeringcoreSelling partner and service partner for NeuCool deployments. Provides server integration and deployment services.
- WESCOcoreSelling partner for procurement of NeuCool products. Part of distribution ecosystem.
- ComputacentercoreSelling partner in UK and Europe for NeuCool liquid cooling solutions. Partnership enables European customers to access NeuCool technology through Computacenter's integration capabilities.
- Texas Advanced Computing Center (TACC)coreCollaboration on Vista project to enhance HPC and AI technologies. TACC recognized need for novel cooling solutions to support high-wattage chips.
Scale indicators13 records
Recent moves8 records
Expansion highlights6 records
Accelsius competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key highlights7 records
Customer concentration
Accelsius social profiles
Digital presenceAccelsius compliance and trust
Trust signalCompliance1 record
Accelsius financial estimates
Financial estimateRevenue estimate
Valuation estimate
Accelsius leadership team
Management profileNumber of profiles
Profiles9 records
Accelsius funding detail
Funding detailFunding overview
Funding rounds5 records
Investors4 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Accelsius M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Accelsius
What does Accelsius do?
Accelsius designs and manufactures the NeuCool platform, a two-phase direct-to-chip liquid cooling system for AI and high-performance computing data centers. The system uses a non-conductive dielectric refrigerant to cool CPUs and GPUs at 4500W+ per socket, eliminating IT equipment damage risk from leaks. The platform includes the NeuCool IR150 integrated rack (up to 150kW), MR250 row-based CDU (up to 250kW), Multi-GPU cold plate configurations, and the NeuView management software with DCIM integration.
Is Accelsius a public or private company?
Accelsius is a private company. It is classified as corporate owned and is currently operating.
When was Accelsius founded?
Accelsius was founded in 2022. It employs 101 to 250 people.
Where is Accelsius based?
Accelsius is headquartered in Austin, United States, in the North America region.
How does Accelsius make money?
Three revenue lines are on record. Hardware Sales - NeuCool CDU Systems are the primary driver. The others are professional Services and warranty and Support Contracts.
Does Accelsius have an API?
No public API is recorded for Accelsius.
What industry is Accelsius in?
Accelsius's product category is Data Center Liquid Cooling. Its primary akta.pro industry code is HDABAKAD, Cooling Systems & Thermal Management (CRAC/CRAH, Chillers, Liquid Cooling), with a secondary code of HDAAAAAH, AI Datacenter Power, Cooling & Racks (liquid cooling, power delivery). Its NAICS code is 333415 and its SIC code is 3585.