Accelsius

High-Performance Computing · Servers & Data Center Hardware
$89.6Mtotal raised · 4 rounds on record
3open roles
$65Mlatest round · Venture round · Oct 2025 · 13 mo ago
2backers · Treble PR, Western Technology Investment

Overview

Two-phase, direct-to-chip liquid cooling for AI data centers. NeuCool delivers up to 4500W per socket and 250kW rack density with zero water use. Book a demo.

Key facts

As of Nov 13, 2026, Alion lists 3 open roles at Accelsius. Accelsius is headquartered in Austin, United States. It was founded in 2022. It has raised $89.6M in 4 funding rounds. The latest round is Venture - Series Unknown of $65M, announced in 2025.

Headquarters
Austin, United StatesAlion company profile, updated Nov 13, 2026
Founded
2022Alion company profile, updated Nov 13, 2026
Total raised
$89.6MSum of 4 equity rounds Alion knows
Latest round
Venture - Series Unknown · $65M · Oct 2, 2025SEC Form D filing · sec.gov
Official records

Funding and backers

Total raised
$89.6M
4 rounds on record
Latest round
$65M
Venture round · Oct 2025 · 13 mo ago
Hiring now
3
+1 posted in 30 days
Backers
2
Treble PR, Western Technology Investment
The money's age
Due for its next round
13 months since the last round · and hiring
Momentum
28/100
hiring for its size, in the news
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Oct 2, 2025 Raised a round Venture round $65M · SEC Form D Nov 12, 2024 Raised a round Series A $24M Oct 11, 2023 Raised a round Venture round $250k · SEC Form D Jul 26, 2022 Raised a round Venture round $313k · SEC Form D 2022 Founded
Tractionpublic signals, read monthly
Web presence
top 2%
of 133.2M domains by links, Common Crawl
Funding rounds
RoundDateAmountInvestorsSource
Venture round Oct 2025 $65M — SEC Form D
Series A Nov 2024 $24M — businesswire.com
Venture round Oct 2023 $250k — SEC Form D
Venture round Jul 2022 $313k — SEC Form D
Registers and programsofficial lists and records that name the company
Legal entity Accelsius Holdings LLC SEC Form D
Founders and leadersfrom filings, registers and the company's site
Liz CruzExecutive OfficerSEC Form D
Dino FoderaroExecutive OfficerSEC Form D
Robert WehmeyerExecutive OfficerSEC Form D
Matt CruceExecutive OfficerSEC Form D
Josh ClamanExecutive Officer, DirectorSEC Form D
Dr. Richard BonnerExecutive OfficerSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers
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apherosVenture round $1.9M · 2 yr ago · Founded 2023 · 11-50 employees
The Coolest Chip in the Rack. Apheros' novel metal foam cold plates are redefining direct-to-chip liquid cooling. Their ultra-high surface…
ActaJet™ - Advanced cooling technology for modern data centers. Increase efficiency and reduce costs with our innovative cooling solutions.

Jobs

In office · Full-Time · 1+ year exp · Bachelor's Degree · Austin
C++
Linux
Apply
≈ $94k – $178k per year (Estimated) · In office · Full-Time · 5+ years exp · Bachelor's Degree · Austin
HPC
Design
SolidWorks
Apply

Growth

Hiring Momentum
25/100
Slowing
Open positions
3
0 opened / 0 closed in 30 days
Median time-to-fill
44 days
faster than 31% of the market
ATS activity
Every ~7 hours
Today
Hiring Dynamics 0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Field & Service
50% ▼
Hardware
25% ▲
Industrial Engineering
25% ▼

Financials

Total raised
$89.6M
Latest round
Venture - Series Unknown
Funding rounds
4
Funding rounds
Round Announced Amount
Venture - Series Unknown 2025 $65M Details
Series A 2024 $24M Details
Venture - Series Unknown 2023 $250k Details
Venture - Series Unknown 2022 $313k Details

People

Liz Cruz
Executive Officer
Dino Foderaro
Executive Officer
Robert Wehmeyer
Executive Officer
Matt Cruce
Executive Officer
Josh Claman
Executive Officer, Director
Dr. Richard Bonner
Executive Officer
Colin Scott
Director
William Grieco
Director
Gregory Haskell
Director
M. Faisal Pandit
Director
John Hewitt
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data

Tech stack

Technologies named in job postings at Accelsius over the last 12 months, by layer, with the share of postings for each.
Technologies in use
4
Postings analysed
2
Stack modernity
74/100
Languages
C++
Cloud & platforms
Linux
Developer tools
SolidWorks
Practices & domains
HPC
Sign in to see how your skills match this stack Sign In

Connections

List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors2
Treble PRVia a fund
137 portfolio companies: ExtraHop, Zilliant, Mdotm and 134 more
189 portfolio companies: Grokker, Inscopix, Passive Inc and 186 more

News

Blog 2 months ago
Operators are reporting on single-phase reliability problems
Last month, leaders from all corners of the data center industry gathered in Dallas for the ninth-annual High-Density AI Data Center Cooling & Thermal Management Summit. What was on the agenda? Observed pain points from past and present liquid cooling dep
Read more
Report
Blog 2 months ago
2P vs. 1P: A Direct-to-Chip Comparison
View PDF The post 2P vs. 1P: A Direct-to-Chip Comparison appeared first on Accelsius.
Read more
Report
Blog 2 months ago
Warm-Water Ready: Mission Critical Cooling
View PDF The post Warm-Water Ready: Mission Critical Cooling appeared first on Accelsius.
Read more
Report
Blog 3 months ago
Accelsius to Deploy Two-Phase Direct-To-Chip Liquid Cooling System at EdgeConneX Global Training Center
Deployment of the Accelsius IR150 at Houston training facility provides vital hands-on instruction and experience with advanced two-phase liquid cooling solution AUSTIN, Texas-(BUSINESS WIRE)-Accelsius, a leader in two-phase, direct-to-chip liquid cooling
Read more
Report
Blog 3 months ago
NVIDIA Says 45C. We Hit 54C. Here's Why That 9-Degree Difference Changes The Game.
This year, NVIDIA's announcement that its liquid cooling can handle 45C facility water was instantly praised as the new industry benchmark, a huge boon to both energy efficiency and resource conservation. "In favorable climates," NVIDIA's accompanying blo
Read more
Report
Blog 3 months ago
System-Level Thermal Analysis of Two-Phase Direct-to-Chip Cooling for Data Centers with Chilled Facility Water
View PDF The post System-Level Thermal Analysis of Two-Phase Direct-to-Chip Cooling for Data Centers with Chilled Facility Water appeared first on Accelsius.
Read more
Report
Blog 3 months ago
Why Neocouds Need NeuCool
View PDF The post Why Neocouds Need NeuCool appeared first on Accelsius.
Read more
Report
Blog 4 months ago
Independent Benchmarks Show Accelsius Two-Phase Direct-to-Chip Cooling Delivers 9C Lower NVIDIA B200 Junction Temperatures Than Single-Phase in Warm-Water Conditions
Third-party testing across roughly 40,000 operating points, detailed in a new white paper, found that Accelsius NeuCool improved liquid cooling performance at warm facility water temperatures from NVIDIA's new standard of 45C to as hot as 54C. AUSTIN, Tex
Read more
Report
Blog 4 months ago
Warm-Water Ready: Benchmarking Two-Phase vs. Single-Phase Direct-to-Chip Cooling On An NVIDIA B200 Server
View PDF The post Warm-Water Ready: Benchmarking Two-Phase vs. Single-Phase Direct-to-Chip Cooling On An NVIDIA B200 Server appeared first on Accelsius.
Read more
Report
Blog 4 months ago
How Accelsius Accelerates HFTs
View PDF The post How Accelsius Accelerates HFTs appeared first on Accelsius.
Read more
Report
Show more news

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Austin
Austin United States
HQ
We're always ready to help
3 open roles 4 posted in 90 days 33% engineering
hires for Hardware, Field & Service, Industrial Engineering
1835-B Kramer Lane • Suite 2-180, Austin, TX 78758
seen since Aug 2026 company site, job postings

How to cite this page

Alion, "Accelsius: key facts", as of Nov 13, 2026. https://alion.io/company/accelsius

These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page. CC BY-SA 4.0