17 Y Combinator companies based in Philadelphia, 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 |
|---|---|---|---|---|---|---|---|
Affordable care via ICHRA and primary care with visits, meds, labs… | S20 | 104 | −3% | +24% | YC | $24.8M | Undisclosed round$16M, Jan 2025 |
Drone submarines | S25 | 35 | +30% | +59% | 0 | $6.5M | Seed$6.5M, Sep 2025 |
Marketing automation platform for selling to local businesses. | W21 | 33 | +3% | YC | $5M | Seed$5M, Jul 2024 | |
The No Infrastructure Platform as a Service | S14Acquired | 24 | −14% | 0 | $12.1M | Series A$12M, Jun 2019 | |
Frozen beauty products. | W19 | 15 | +15% | +25% | 0 | $1.1M | Undisclosed round$1M, Aug 2019 |
Dead simple LLM testing and iteration | S23Acquired | 14 | 0% | 0% | 0 | $500K | YC investment$500K, Sep 2023 |
The best way for any business to offer delivery. | W19 | 13 | −7% | −7% | YC | SeedMar 2022 | |
A DecisionOps platform that accelerates optimization AI teams | W20Acquired | 10 | −41% | −44% | 0 | $19.4M | Series A$8M, Nov 2022 |
Regulating the immune system to block cancer & autoimmune diseases | S21 | 9 | 0% | 0% | 0 | $8.7M | Convertible note$4.5M, Nov 2023 |
The SAFE for commercial contracts | W23 | 8 | −11% | −11% | 0 | $5M | YC investment$500K, Apr 2023 |
AI-powered EHR for independent mental health professionals | W23 | 6 | −14% | −40% | YC | $500K | YC investment$500K, Apr 2023 |
At-home blood testing: measure + analyze + enhance. | W17Inactive | 5 | 0% | 0% | 0 | $1.8M | Undisclosed round$1.1M, May 2021 |
Converting biology into digital molecular maps | S24 | 3 | 0 | $500K | YC investment$500K, Sep 2024 | ||
AI Co-Pilot for Health Insurers to Authorize Treatment Faster | W23Acquired | 2 | 0 | $500K | YC investment$500K, Apr 2023 | ||
AI Native Commercial Insurance Broker | X25 | 1 | 0 | ||||
Automatic voice-of-customer trends & metrics from sales conversations. | S21Inactive | 1 | 0 | $125K | YC investment$125K, Sep 2021 | ||
Outsourced, high volume food delivery.
| S14Inactive |
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
17 Y Combinator companies are based in Philadelphia; 10 are active.
We found no job postings for these companies in the last 60 days. 4 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Albacore Inc. (+30%), NaturAll Club (+15%) and Resquared (+3%).
No reported rounds after their YC batch in the last 12 months.