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Cleancard

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Cleancard

Making cancer detection as easy as a pregnancy test

cleancard.bio
HQ: San Francisco, CA, USA
11-50
Healthcare

Company research

Public company, workplace, funding, and market signals

Overview

Cleancard (rebranded publicly as Numen) is a San Francisco-based biotechnology startup developing rapid at-home cancer screening tests. Its core product is a 30-minute urine-based diagnostic platform that combines synthetic biology, machine learning, and computer vision to detect multiple cancer biomarkers, starting with prostate, bladder, and ovarian cancers.

Primary product

Rapid at-home cancer screening tests from urine samples, delivered through a synthetic-biology + AI diagnostic platform.

Founded

2021

Headquarters

San Francisco, California, United States

Team size

11-50

Industry

Biotechnology

Sub-industry

At-home cancer diagnostics / cancer screening

Offices

350 Parnassus Ave, Suite 300, San Francisco, CA 94117
Westbourne Studios, 242 Acklam Road, London, United Kingdom

Business model

At-home diagnostic test sales
Biotech R&D platform development
Clinical validation / research partnerships

Funding

Stage

Early-stage / accelerator-backed

Total raised

$846K

Latest round

Accelerator/Incubator · Oct 2025

People & investors

Leadership

Luca Springer

Chief Executive Officer & Co-Founder

Thomas Carroll

Chief Scientific Officer & Co-Founder

Daniel Cheng

Product & Design Lead

Investors

Creative Destruction Lab
Mayo Clinic Platform
TQ Ventures
Urban Innovation Fund
Y Combinator

Work & culture

Mission-driven and research-heavy, with a tight-knit team of scientists, engineers, and designers focused on non-invasive cancer diagnostics and rapid product iteration.

Compensation

Public job postings show roughly $90K-$220K base pay depending on role, plus equity ranges around 0.05%-0.25%; at least one role is listed as US citizen/visa only.

Benefits

Competitive salary and benefits package
Professional growth and development
Mission-driven work in healthcare
Collaborative, cross-disciplinary team environment

Product & market

Differentiators

  • —30-minute results from a urine sample
  • —No expensive machinery required
  • —Combines synthetic biology, ML, and computer vision
  • —Aims to be faster and cheaper than lab-based tests
  • —Multiple biomarker detection from one sample
  • —Home-use format for screening outside the clinic

Technology

Synthetic biology
Machine learning
Computer vision
Urine biomarker detection
Multiplexed diagnostics
Aptamer/SELEX-related biosensing

Customers

Patients/consumers seeking at-home cancer screening
Clinical partners involved in validation and follow-up

Competitors

Galleri (GRAIL/Illumina)
Exact Sciences
EarlySign
Traditional lab-based cancer screening tests
Lateral flow rapid diagnostic tests

Scale & contact

Estimated revenue

≈$1.1M estimated annual revenue (2024 estimate)

contact@cleancard.bio

Latest news

Cleancard | The Cancer Index

The Cancer Index · Feb 2026

A company profile focused on Cleancard’s at-home urine-based cancer detection platform and its screening use case.

Cleancard: Revolutionizing At-Home Diagnostics with Innovation and Leadership

Persana AI Blog · Sep 2025

A profile article describing the company’s founder-led strategy, at-home cancer diagnostics mission, and estimated revenue/funding details.

Cleancard signs lease at 350 Parnassus in San Francisco

LinkedIn · Jul 2025

Thomas Carroll announced that Cleancard signed a 9,070 SF lease at 350 Parnassus Avenue near UCSF, signaling continued buildout in San Francisco.

The Startup Working to Rapidly Screen Cancer At Home

The New Money · Sep 2023

Early coverage of Cleancard’s at-home cancer screening concept, including its use of synthetic biology and computation.

Launch YC: Cleancard - Making cancer screening as easy as a pregnancy test

Y Combinator · Aug 2023

Launch announcement describing the company’s product, founders, and initial cancer targets.

Company LinkedInDaniel Cheng LinkedInLuca Springer LinkedInOfficial websiteOpenGov business registrationThomas Carroll LinkedInY Combinator jobsY Combinator launch
SourcesOfficial websiteY Combinator launchY Combinator company pageY Combinator jobsLinkedIn company pageLuca Springer LinkedInThomas Carroll LinkedInDaniel Cheng LinkedInPitchBook profileThe New Money articleThe Cancer IndexPersana AI blogLease announcement postGetLatka revenue pageOpenGov business registration

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