44 Y Combinator companies in Medical Devices, with team size, growth, open roles and funding.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
Robotic Automation for cancer diagnostics - Robotic Microscopes &… | W20 | 108 | +4% | +30% | YC | $7.3M | Series A$5M, Nov 2025 |
We make cancer care at home possible. | S21 | 67 | +8% | +24% | 0 | $60.6M | Series A$21M, Jan 2026 |
Building AI therapeutics for physical health conditions like IBS. | S19 | 48 | +2% | +4% | 0 | $19.7M | Series A$12M, Mar 2023 |
Medical device that provides a more effective, less invasive… | W15 | 48 | +12% | +41% | 1 | $134M | Series D$52M, Oct 2026 |
Exoskeletons to help people walk, starting with children | W19 | 41 | −5% | −9% | 3 | $1M | Grant$1M, Jun 2024 |
First ECG AI to go beyond diagnostics and recommend treatment | S21 | 34 | −19% | −19% | YC | $135K | Grant$10K, Nov 2023 |
Absorbable wrap for blood vessels | S20 | 34 | +3% | 0 | $29.8M | Series A$4M, Jun 2024 | |
Vena Medical is providing physicians with the world's smallest camera… | W18 | 26 | +30% | −7% | 0 | $198K | YC investment$40K, Feb 2018 |
AI-powered platform for Accessible and Personalized Breast Health… | W16 | 26 | +8% | −19% | YC | $6.4M | Undisclosed round$1.8M, Oct 2025 |
Natural hydrogel to keep internal organs scar-free after surgery | W22 | 25 | +47% | +178% | 0 | $32.3M | Series A$30M, Jul 2026 |
Bringing non-invasive brain stimulation from the hospital to the home | W22 | 25 | −14% | 0 | $1M | YC investment$500K, Jan 2022 | |
A new way of seeing inside the human body. | S22 | 24 | +26% | +33% | 0 | $8.9M | Seed$4.2M, Apr 2026 |
Replacing orthodontic braces with our clear aligner and software | W18 | 22 | +5% | YC | $8M | Undisclosed round$7.8M, Feb 2020 | |
Autonomous surgical robots | S23 | 19 | +90% | +73% | 5 | $15.6M | Series A$15M, Aug 2026 |
| S17 | 18 | 0% | −10% | 0 | $150K | Seed$120K, Apr 2022 | |
A small sticker that monitors blood pressure continuously | S20 | 17 | −32% | −15% | YC | $4M | Grant$256K, Feb 2021 |
Desktop DNA Printer. The Nespresso Machine for DNA. | W21 | 13 | 0 | Non-equity supportJun 2023 | |||
Automated tooth cutting for dentists using imaging, AI and robotics | W20 | 13 | −7% | −59% | 0 | $20.3M | Undisclosed round$15M, Jul 2025 |
Reinventing respiration monitoring | S21 | 12 | +9% | +9% | 0 | $164K | Equity crowdfunding$39K, Mar 2023 |
Helping Plastic Surgeons Rebuild Fat | S20 | 12 | +9% | +9% | 0 | $8M | Seed$2.7M, Oct 2025 |
Next-Generation Surgical Navigation and Robotics | S19 | 12 | 0% | 0% | 0 | $13.9M | Series A$5M, Jan 2025 |
Neurostimulation implant to restore hearing & speech understanding | W21 | 10 | 0% | +11% | 0 | Pre-seedMar 2021 | |
Portable cryoablation to prevent cervical cancer | S21 | 9 | −18% | −25% | 0 | $2.6M | Grant$2.3M, Sep 2024 |
Responsive materials, better lives. | W18 | 9 | −18% | −25% | 0 | $120K | Convertible note$120K, Jun 2021 |
Fast, smart, accessible 3D ultrasound that anyone can use | X26 | 7 | +40% | 0 | $500K | YC investment$500K, Jun 2026 | |
Surgical robotics for every operating room | S21 | 7 | −12% | −12% | 0 | $125K | YC investment$125K, Aug 2021 |
Catheter-based solution to treat chronic heart failure. | W22 | 6 | 0% | 0 | $1M | Non-equity support$500K, Jul 2023 | |
Helping physicians select the right therapy for breast cancer patients | W22 | 5 | 0% | 0% | 0 | $500K | Grant$500K, Sep 2025 |
Immediate stroke detection at home | S21Inactive | 5 | −17% | −17% | 0 | $2.1M | Seed$2M, Oct 2021 |
Makers of simple, affordable medical devices. Our award-winning… | W15Acquired | 4 | 0 | $1.2M | Seed$1.2M, Jul 2015 | ||
High-precision, closed-loop neuromodulation devices | W22 | 3 | 0 | $500K | Seed$500K, Aug 2024 | ||
One-time, device-based treatment for heart failure | W24Inactive | 2 | 0 | $500K | YC investment$500K, Apr 2024 | ||
CRM Co-Pilot for Medtech Sales | S23 | 2 | 0 | ||||
We cure intractable leg wounds with a replacement valve for veins. | W16Inactive | 2 | 0 | $10.8M | Undisclosed round$2.5M, Feb 2023 | ||
Breaking new ground in online eyecare. | W21Inactive | 1 | 0 | SeedMar 2023 | |||
Using cooling to end brain damage during stroke. | S19Acquired | 1 | 0 | $150K | YC investment$150K, Apr 2019 | ||
Hearing aids that work in noisy places, like restaurants, using ML. | S19Inactive | 1 | 0 | SeedAug 2019 | |||
Buid, test and deploy perception applications | W15Inactive | 1 | 0 | $2.6M | Seed$120K, Dec 2019 | ||
BBy powders breast milk that's immunologically active & lasts 6 months | W22 | ||||||
Transforming the lives of millions of women suffering from chronic… | S21Inactive | ||||||
First personalized migraine clinic using genetics and telehealth. | S21Acquired | ||||||
Advancing surgical precision through safe electrical stimulation. | S18Acquired | ||||||
Volt Health is developing medical devices that deliver electrical… | W17Inactive | 0 | $120K | YC investment$120K, Mar 2017 | |||
Devices to improve the quality of life for people with Spinal Cord… | W16Acquired |
Every launched company in YC's public directory, with its batch, status, industry and location. New companies show up the week YC lists them.
Each company is matched to Crustdata by its website. Crustdata adds team size and its change over 6 and 12 months, open roles from job postings, reported funding, and founders' past employers.
Hiring the most counts distinct roles posted in the last 60 days. Growth needs 10+ people today, shrinking 20+ a year ago, so tiny teams do not top the lists. Rebuilt every week.
The numbers on this page come from three Crustdata API calls. Crustdata tags 5,000+ companies with Y Combinator as an investor; swap the filter for any investor, industry or headcount range and track your own list, with founders' work emails one call away.
# 1. every company with Y Combinator as an investor curl https://api.crustdata.com/company/search \ -H "authorization: Bearer $CRUSTDATA_API_KEY" \ -H "x-api-version: 2025-11-01" \ -d '{ "filters": { "field": "funding.investors", "type": "in", "value": ["Y Combinator"] }, "fields": ["basic_info.name", "headcount.total", "headcount.growth_percent", "funding.total_investment_usd"], "limit": 100 }' # 2. open listings per company, last 60 days (limit 0 = counts only) curl https://api.crustdata.com/job/search \ -H "authorization: Bearer $CRUSTDATA_API_KEY" \ -H "x-api-version: 2025-11-01" \ -d '{ "filters": { "op": "and", "conditions": [ { "field": "company.basic_info.company_id", "type": "in", "value": [...] }, { "field": "metadata.date_added", "type": "=>", "value": "2026-08-24" } ]}, "limit": 0, "aggregations": [{ "type": "group_by", "field": "company.basic_info.company_id", "agg": "count" }] }' # 3. the same company filter as a weekly watch: POST /watch/company/search
44 Y Combinator companies are in Medical Devices; 31 are active.
3 companies posted roles in the last 60 days, led by Andromeda Surgical (5 roles), Trexo Robotics (3 roles) and Zenflow (1 roles). 7 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Andromeda Surgical (+90%), TYBR Health (+47%) and Vena Medical (+30%).
Largest latest rounds in the last 12 months, after their YC batch: Zenflow ($52M), TYBR Health ($30M) and Luminate ($21M).