The 14 YC S20 companies whose latest reported round, after their YC batch and in the last 12 months, was the largest.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
| # | Company | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
| 1 | Build in a weekend. Scale to millions. | 484 | +38% | +106% | 0 | $1.2B | Series F$150M, Oct 2026 |
| 2 | Transform your decision-making with reliable AI agents in weeks, not… | 237 | +11% | +22% | 2 | $209M | Series C$130M, Jun 2026 |
| 3 | International banking infrastructure for global startups. | 324 | +5% | +13% | 3 | $653M | Series C$110M, Sep 2026 |
| 4 | Vertical AI for Audit & Advisory Firms | 257 | +24% | +58% | 6 | $125M | Series C$75M, Feb 2026 |
| 5 | Gilgamesh Pharmaceuticals, a Clinical stage biotechnology company… | 37 | +3% | +3% | 0 | $143M | Series A$60M, Mar 2026 |
| 6 | Luminai is the AI platform for Health System Operations. | 69 | +25% | +50% | 4 | $57.8M | Series B$38M, Apr 2026 |
| 7 | Glimpse is the system of action for CPG retail operations | 70 | +37% | +75% | 3 | $53.4M | Series A$35M, Mar 2026 |
| 8 | India's leading on-demand diagnostics company | 728 | +8% | +8% | 1 | $70.8M | Series C$23.8M, Jun 2026 |
| 9 | Easiest way to deploy on AWS/GCP/Azure | 53 | +6% | +23% | YC | $26.6M | Series A$20M, Jan 2026 |
| 10 | India's Largest EV charging network | 328 | +10% | +13% | 1 | $46.1M | Undisclosed round$18M, Feb 2026 |
| 11 | Deliver effective learning at scale | 73 | +3% | +20% | 0 | $30.2M | Undisclosed round$14.1M, Jul 2026 |
| 12 | The Notabene platform is the trust layer for global money movement. | 112 | −2% | +8% | YC | $38.5M | Corporate round$11.5M, Jul 2026 |
| 13 | The spot market for semiconductors | 15 | +25% | +36% | 0 | $3.8M | Seed$3M, Dec 2025 |
| 14 | Curative genetic medicines for kidney diseases | 6 | 0% | 0% | 0 | $20K | Seed$20K, Oct 2026 |
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
209 companies were in Y Combinator's Summer 2020 batch (S20); 122 are active.
39 companies posted roles in the last 60 days, led by Thndr (18 roles), Atomic (11 roles) and Roboflow (7 roles). 52 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Supabase (+38%), Glimpse (+37%) and Nextera Robotics | DIDGE.ai (+29%).
Largest latest rounds in the last 12 months, after their YC batch: Supabase ($150M), Taktile ($130M) and Jeeves ($110M).