Clarapath closes $36M Series B-1, led by Northwell Ventures SectionStar automates robotic tissue sectioning 24/7/365 Mayo Clinic joins as strategic partner and investor ~$75M raised to modernize the histology lab bench Founded 2014 from Cold Spring Harbor neuroanatomy research Crosscope acquisition bridges hardware and digital pathology Clarapath closes $36M Series B-1, led by Northwell Ventures SectionStar automates robotic tissue sectioning 24/7/365 Mayo Clinic joins as strategic partner and investor ~$75M raised to modernize the histology lab bench Founded 2014 from Cold Spring Harbor neuroanatomy research Crosscope acquisition bridges hardware and digital pathology
Company Profile · Medical Robotics · Hawthorne, NY

Clarapath

The robot behind the biopsy. Clarapath automates the paper-thin cut that begins nearly every cancer diagnosis.

Histology Automation Digital Pathology AI + Robotics Founded 2014
Clarapath company logo
Clarapath, Inc. - 12 Skyline Drive, Hawthorne, New York. A medical-robotics company building for the pathology lab bench.
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The Story

Automating the slowest step in cancer diagnosis

What Clarapath does

Before a pathologist reads a biopsy, someone has to shave the tissue into slices thinner than a human hair, float them onto glass, and stain them. For roughly 150 years, that work has been done by hand - one block at a time, by a shrinking pool of highly trained technicians. Clarapath, a medical-robotics company based in Hawthorne, New York, built a machine to do it instead.

Its flagship system, SectionStar, is a fully automated tissue-sectioning and transfer platform. It combines precision robotics, machine vision and AI to cut sections at a user-defined 3 to 10 microns, mount them onto slides, and record quality-control data on every one. A single session handles roughly 72 tissue blocks and 200 slides, and the system is designed to run 24 hours a day, 365 days a year.

The goal is not novelty for its own sake. Pathology labs face rising caseloads and a persistent shortage of skilled histotechnologists. Manual sectioning is variable, tiring and hard to staff. Clarapath's bet is that standardizing that first physical step improves everything downstream - slide quality, turnaround time and, ultimately, the reliability of a diagnosis.

~$75M
Total funding raised
3-10µm
Section thickness
200
Slides per session
2014
Year founded
The Market

Who it serves, and the problem it solves

Who its customers are

  • Hospital and health-system pathology labs
  • Reference and clinical laboratories
  • Veterinary and preclinical research labs
  • Academic and CRO tissue-processing operations
  • Named partners: Mayo Clinic, Northwell Health

The problems it solves

  • Chronic shortage of skilled histotechnologists
  • Rising biopsy caseloads - 12M+ per year in the US
  • Manual, variable sectioning and slide quality
  • Slow turnaround on time-sensitive diagnoses
  • Waterbath artifacts from traditional methods
“Our strategic investors share in our mission to overhaul this critical aspect of patient care that has long been overlooked.”
- Eric Feinstein, Chief Executive Officer, Clarapath
The Toolkit

Products & services

Robotics on the bench, AI on the screen

SectionStar

Flagship · 2024

Fully automated, all-in-one robotic microtomy system. Cuts 3-10 micron sections, transfers them via a patented tape method that avoids waterbath artifacts, and captures quantitative quality metrics - roughly 72 blocks and 200 slides per session, around the clock.

Telehistology

Remote operation

Lets a technician run SectionStar tissue sectioning from another city or country. When skilled labor is scarce, the work moves to the people instead of the other way around.

Crosscope Dx

Acquired · 2023

AI-powered digital-pathology and slide-management software gained through the Crosscope acquisition. Provides workflow tools and machine-learning decision support, connecting Clarapath's hardware to digital diagnosis.

TrimStar Pro & Consulting

Workflow line

A companion tissue-preparation product plus professional consulting services that help labs plan and adopt automation across their histology workflow.


The Edge

How it's different

Automating the cut, not just the screen

Digital pathology has attracted plenty of attention, and companies like Paige and PathAI have built software to help read slides. Large incumbents - Leica Biosystems, Sakura Finetek, Roche Tissue Diagnostics - supply much of the equipment around the histology lab. What most of them leave alone is the physical act of sectioning: the manual, artful step of cutting and mounting tissue.

That is precisely where Clarapath planted itself. Rather than build another algorithm to interpret an image, it automated the making of the image's source - the slide itself. Its tape-transfer method sidesteps the traditional waterbath, a common source of floating artifacts, and its machine vision turns each cut into measurable, trackable data. The 2023 acquisition of Crosscope then connected that automated hardware to AI-assisted diagnosis, giving Clarapath a rare span across the bench and the screen.

Business model & expertise

Clarapath sells and places SectionStar systems into pathology labs, supported by service, tape-transfer consumables, software and consulting - capital equipment paired with recurring revenue. The Crosscope software adds room for subscription income on top of the hardware. Its expertise sits at an unusual intersection: precision mechanical engineering, machine vision, computational AI and hands-on histology workflow, with US-based manufacturing and service. The company's scientific DNA traces back to high-throughput neuroanatomy research at Cold Spring Harbor Laboratory, where the tape-transfer approach was refined to process hundreds of thousands of tissue samples.

The Money

Funding

~$75M total across rounds
2021 · Round
$32M
2024 · Series B-1
$36M
Series B-1 led by Northwell Ventures, with CU Healthcare Innovation Fund, Mayo Clinic and Ochsner Ventures participating. Bars are illustrative of round size, not cumulative.
The Path

Timeline

Worth Knowing

Five things that stick

Origins & craft

  • The tissue-cutting robot has roots in brain mapping at Cold Spring Harbor Laboratory.
  • SectionStar cuts thinner than a human hair - and runs 24/7/365.
  • Its tape-transfer method skips the traditional histology waterbath.

Scale & reach

  • The manual step it automates has been largely unchanged for ~150 years.
  • Telehistology lets a technician run the robot from another country.
  • Mayo Clinic and Northwell Health are both partners and investors.
Questions

FAQ

What does Clarapath do?
It builds robotics and AI systems that automate histology tissue sectioning - cutting biopsy tissue into thin slices and mounting them on slides for pathologists to examine.
What is SectionStar?
SectionStar is Clarapath's flagship automated robotic microtomy system. It cuts tissue at 3-10 microns, transfers sections using a patented tape method, runs around the clock, and captures quality-control data - handling roughly 72 blocks and 200 slides per session.
Who founded Clarapath and when?
Clarapath was founded in 2014, growing out of Dr. Partha Mitra's high-throughput neuroanatomy research at Cold Spring Harbor Laboratory. Eric Feinstein is the current CEO.
How much funding has Clarapath raised?
Approximately $75 million total, including a $36 million Series B-1 closed in July 2024 led by Northwell Ventures, with Mayo Clinic, CU Healthcare Innovation Fund and Ochsner Ventures participating.
Who are Clarapath's customers and partners?
Hospital and reference pathology labs, plus research and veterinary labs. Named partners include Mayo Clinic and Northwell Health, both of which are also strategic investors.