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14,448 startups · 29 programs

Quadrant Eye

Inactive · Breaking new ground in online eyecare.

WebsiteYC profile

Why it ranks

How the rank works
2signal of 100 · rising 0
  • went through YCProgram · this site+4
  • team of 4Team size · YC's directory+3.6

A sum of public facts, not a judgement and not investment advice.

Competitors

AIInactiveSpectShared: preventable blindness, digital health, eyeYC S17San FranciscoStartup →AILeonardo AiShared: core focus, creator, drivenAWS GenAI Inaugural cohortStartup →AIEnaxiomShared: deep techAntler 2023AustraliaStartup →AIExtensityAIShared: deep techMassChallenge Switzerland 2025AustriaStartup →AIEcotrace SolutionsShared: deep techGoogle AI for Nature 2025Startup →
Companies closest to Quadrant Eye
Company
SpectShared: preventable blindness, digital health, eyeYC S17InactiveAI
Leonardo AiShared: core focus, creator, drivenAWS GenAI Inaugural cohortNot statedAI
EnaxiomShared: deep techAntler 2023Not statedAI
ExtensityAIShared: deep techMassChallenge Switzerland 2025Not statedAI
Ecotrace SolutionsShared: deep techGoogle AI for Nature 2025Not statedAI

Adjacent

OtherBalthazarShared: deep techAntler 2024NetherlandsStartup →OtherFlycatcher SAShared: deep techMassChallenge Switzerland and UK 2026SwitzerlandStartup →OtherPolium ScientificShared: deep techMassChallenge Switzerland and UK 2026TurkeyStartup →OtherRinseShared: telemedicine, digital health, buildingYC S21San FranciscoStartup →AIScitodateShared: deep tech, marketPlug and PlayNetherlandsStartup →
Companies next to Quadrant Eye
Company
BalthazarShared: deep techAntler 2024Not statedOther
Flycatcher SAShared: deep techMassChallenge Switzerland and UK 2026Not statedOther
Polium ScientificShared: deep techMassChallenge Switzerland and UK 2026Not statedOther
RinseShared: telemedicine, digital health, buildingYC S21ActiveOther
ScitodateShared: deep tech, marketPlug and Play Not statedAI, Data

Also from W21 in AI

All of W21
AIAnimaThe next generation care enablement platformYC W21LondonStartup →AIBiodockCloud AI microscopy automationYC W21AustinStartup →AIClearThe unbiased AI and data layer for skin health.YC W21LondonStartup →AIInpharmDWe provide a curated, evidence- based answer to any clinical question.YC W21AtlantaStartup →AIMindeeAI Document Understanding APIYC W21ParisStartup →AIAcquiredSegments.aiBuild better computer vision models by building better datasetsYC W21BrusselsStartup →
Company
AnimaThe next generation care enablement platformteam of 20hiringActiveAI
BiodockCloud AI microscopy automationteam of 8hiringActiveAI
ClearThe unbiased AI and data layer for skin health.team of 2ActiveAI, Data
InpharmDWe provide a curated, evidence- based answer to any clinical question.team of 16ActiveAI
MindeeAI Document Understanding APIteam of 60ActiveAI, Devtools
Segments.aiBuild better computer vision models by building better datasetsteam of 8acquiredAcquiredAI, Devtools

About Quadrant Eye

Quadrant Eye is on a mission to improve eyecare access and fight preventable blindness. We're building the next generation eye exam... inside the average American home. Our team wants to enable patients' best and most visually rich lives. To this end, we're looking for curious and nimble minds to help us develop the world's first fully online eye exam and ultimately deliver high-quality eyecare at scale. Some QE highlights: 🐝 We're a team of surgeons, scientists, venture partners, and hackers who mean business. 💸 Our backers include Y Combinator, Khosla Ventures, and the creator of Google Image Search. 🍥 We're a mission-driven company tackling an eye health market worth $USD137B. 🌟 Our core focus is currently the development of patentable deep tech, and our overall vision is to change eyecare for good.

YC batch
W21 · Winter 2021
Status, per YC
Inactive
Category
AI
Team size
4
Location
San Francisco, CA, USA
Checked
13h ago

YC tags: Deep Learning, Digital Health, Telemedicine, AI

Changes seen

TagsOct 19, 2026

Newly tagged AI; no longer tagged Artificial Intelligence.

Source ↗

Quadrant Eye in W21: 336 companies, 30% AI

Quadrant Eye: questions

Which YC batch was Quadrant Eye in?

Quadrant Eye was in Y Combinator's Winter 2021 batch (W21).

Is Quadrant Eye still active?

Y Combinator lists Quadrant Eye as inactive.

Where is Quadrant Eye based?

Quadrant Eye lists San Francisco, CA, USA as its location on YC's directory.