BREAKING  Cytovale closes $100M Series D to expand IntelliSep nationwide Peer-reviewed study: 39% reduction in sepsis mortality Results in ~8 minutes from a single blood draw First FDA-cleared cellular host-response sepsis test ~$224M raised to date Blood cultures down 40% for low-risk ER patients BREAKING  Cytovale closes $100M Series D to expand IntelliSep nationwide Peer-reviewed study: 39% reduction in sepsis mortality Results in ~8 minutes from a single blood draw First FDA-cleared cellular host-response sepsis test ~$224M raised to date Blood cultures down 40% for low-risk ER patients
Diagnostics · South San Francisco

Cytovale

The company that reads your immune system's mechanics to catch sepsis before the clock runs out.

Founded 2013 FDA-Cleared ~120 Employees Series D
Cytovale company logo
Cytovale, Inc. - South San Francisco, California. The maker of IntelliSep, the first FDA-cleared sepsis test built for the emergency department.
The Story

A blood test that listens to your cells, not the germ

Sepsis is a race against time. When an infection tips the body into a runaway immune response, organs can begin to fail within hours, and it remains a leading cause of death in American hospitals. The hard part has always been the same: telling, quickly, which feverish patient in a crowded emergency department is genuinely on that path - and which is not.

Cytovale's answer is IntelliSep, a test that skips the usual hunt for a specific pathogen. Instead it examines the patient's own white blood cells and measures how they behave under mechanical stress. When the immune system is activated, those cells change - they become softer, more deformable - and that shift can be quantified. From a single blood draw, IntelliSep returns a sepsis risk band in roughly eight minutes, well before a traditional blood culture could even begin to grow.

The company was incorporated in 2013, but the science is older. The core technique - deformability cytometry - began as an academic project around 2007, rooted in work connected to UCLA and MIT. It took FDA clearance in 2022 and a commercial launch in 2023 to turn a physics idea about squeezing cells through tiny channels into a tool sitting next to an ambulance bay.

"IntelliSep analyzes the immune response to infection through the biomechanical properties of white blood cells - delivering results in approximately eight minutes."

Cytovale, on how the test works
By The Numbers

What the evidence shows

~8
Minutes to result
39%
Sepsis mortality drop*
40%
Fewer low-risk cultures
$1,429
Avg. savings / patient*

*From a peer-reviewed quality-improvement study of 12,000+ patients at Our Lady of the Lake Regional Medical Center, Baton Rouge. Results reflect one health system and may vary.

The Product

How IntelliSep works

A benchtop analyzer plus a single-use microfluidic cartridge turn a small blood sample into a probability of sepsis - using four disciplines working in sequence.

STEP 01

Draw

A standard blood sample is loaded into a disposable IntelliSep cartridge in the ED.

STEP 02

Deform

Microfluidic channels push white blood cells through a narrow flow, stressing each one.

STEP 03

Image

A high-speed camera captures how far each cell deforms - a read on immune activation.

STEP 04

Score

Machine learning converts the cell mechanics into a risk band for sepsis within 3 days.

BloodMicrofluidicsHigh-speed imagingMachine learningRisk band
Speed Is Treatment

Minutes, not hours

The traditional sepsis workup leans on blood cultures that can take a day or more. IntelliSep aims to give clinicians an early signal while there is still time to act.

Approximate time to a usable signal

Illustrative comparison · blood culture turnaround varies by lab and organism
IntelliSep
~8 min
Lactate / labs
~1 hr+
Blood culture
24-48 hr+
Products & Business Model

A razor-and-blade for the ER

IntelliSep

FDA-CLEARED · 2022

The flagship test. Aids rapid identification of sepsis in adults arriving at the ED with signs of infection, returning a risk band tied to the probability of sepsis within three days.

Analyzer & Cartridge

LAUNCHED · 2023

A benchtop instrument placed in hospitals, paired with single-use microfluidic cartridges. The recurring cartridge sales are the engine of the business.

Cytovale sells business-to-business: it places IntelliSep analyzers in hospital emergency departments and health systems, then earns recurring revenue on the disposable cartridges each test consumes. The pitch to a hospital is not only clinical - shorter stays, fewer unnecessary cultures and lower mortality also translate into operational savings, which the company backs with published data. Estimated annual revenue is in the range of $33M.

"Different question, faster answer: read the immune response instead of culturing the bug."
Customers & Market

Who uses it, and against whom

IntelliSep's users are emergency physicians, critical-care teams and hospital labs. Our Lady of the Lake Regional Medical Center in Baton Rouge - a 900-bed Level 1 trauma center - became the first US site, and adoption has since reached rural Louisiana hospitals, extending advanced diagnostics beyond big academic centers.

The competition is partly the status quo - blood cultures, lactate tests and clinical scoring - and partly a field of host-response and biomarker rivals such as Beckman Coulter's Early Sepsis Indicator (MDW), Immunexpress SeptiCyte, Prenosis' Sepsis ImmunoScore, Inflammatix and T2 Biosystems. Cytovale's differentiator is its cell-mechanics approach and its position as the first FDA-cleared cellular host-response test designed specifically for the emergency department.

The People

Founders & leadership

AS

Ajay Shah

Co-Founder & CEO
HT

Henry Tse

Co-Founder & CTO
DD

Dino Di Carlo

Co-Founder & Sci. Advisor

CEO Ajay Shah trained in the Harvard-MIT Division of Health Sciences and Technology, working on isolating circulating tumor cells before turning to sepsis. Co-founder Henry Tse is a co-inventor of the deformability cytometry platform underpinning the technology. Today roughly 120 people - engineers, data scientists and clinical and scientific affairs staff - support the commercial rollout.

Funding

~$224M raised

RoundAmountDateLead / Notable Investors
Series D$100MOct 2024Sands Capital (lead), CPP Investments, Norwest, GHIC, Breakout Ventures
Series C$84MNov 2023Norwest Venture Partners, GHIC, Breakout Ventures
Total to date~$224M2024Multiple institutional and strategic investors

Figures compiled from public announcements. Valuation not disclosed.

Milestones

From lab bench to bedside

2007

Born in the lab

Deformability cytometry research begins as an academic project connected to UCLA and MIT.

2013

Cytovale incorporated

Ajay Shah and Henry Tse formally found the company to commercialize the cell-mechanics platform.

2021

A sepsis contender emerges

Cytovale gains attention for its ambition to transform sepsis care with rapid diagnostics.

2022

FDA clearance

IntelliSep becomes the first FDA-cleared cellular host-response sepsis test for the ED.

2023

Launch & Series C

Commercial launch of IntelliSep alongside an $84M Series C to scale.

2024

$100M Series D

A round led by Sands Capital, with CPP Investments joining, funds nationwide expansion.

2025

Peer-reviewed mortality data

A published study links IntelliSep adoption to a 39% reduction in sepsis mortality.

Questions

Frequently asked

What does IntelliSep actually measure?

It measures the biomechanical properties of white blood cells - how they deform under stress - as a signal of the body's immune response to infection, rather than testing for a specific pathogen.

How fast are results?

The test returns a sepsis risk result in approximately eight minutes from a small blood sample drawn in the emergency department.

Is it FDA-cleared?

Yes. IntelliSep is described as the first and only FDA-cleared cellular host-response sepsis diagnostic for emergency department use, cleared in 2022.

Who uses it?

Hospital emergency departments and health systems. Our Lady of the Lake Regional Medical Center in Baton Rouge was the first US site, with adoption extending to rural hospitals.

How much has Cytovale raised?

Roughly $224M in total, including an $84M Series C in 2023 and a $100M Series D in 2024 led by Sands Capital.

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Profile compiled from public sources. Figures are approximate where noted.