Get an API keyGet an API keyThe 23 YC W17 companies whose team grew the most in the last 6 months (active companies with 10+ people).
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 |  Democratizing Dermatology with AI | 13 | +30% | +30% | YC | $10.2M | Undisclosed round$6M, Jun 2022 |
| 2 |  Data integration & insights for state and local governments | 34 | +21% | +26% | 3 | $3.2M | Seed$3.1M, Jan 2018 |
| 3 |  Shopify for Financial Services | 72 | +14% | +18% | 3 | SeedJan 2020 | |
| 4 |  Boeing for electric planes | 50 | +11% | +9% | YC | $4.1M | Grant$3.3M, Aug 2024 |
| 5 |  Every shift, Covered. | 4,141 | +10% | +18% | 20 | $94.1M | Series C$30M, Feb 2022 |
| 6 |  An Operating System for agriculture. | 12 | +9% | +9% | YC | $4.5M | Grant$150K, Jun 2024 |
| 7 |  Full Stack Fintech and Supply Chain Platform for Global Trade | 136 | +9% | +5% | 0 | $9.9M | Debt$3.3M, Jul 2020 |
| 8 |  Automatic Data Extraction | 327 | +8% | +23% | 3 | $40.5M | Series B$29M, Mar 2024 |
| 9 |  A superhuman, AI-powered language tutor in your pocket | 319 | +7% | +22% | YC | $152M | Series C$78M, Dec 2024 |
| 10 |  Defender of rights and liberties | 1,281 | +7% | +7% | 90 | $125K | Grant$25K, Jan 2020 |
| 11 |  One clinic for every sleep issue | 17 | +6% | +31% | 0 | $12.6M | Non-equity support$10M, Jan 2026 |
| 12 |  Diversified credit infrastructure powering payments across Africa. | 99 | +5% | 0 | $10.3M | Debt$10M, Feb 2020 | |
| 13 |  We're your non-profit portfolio managers. We make giving to… | 119 | +5% | +8% | 7 | ||
| 14 |  One place to run all your HR, IT, and Finance. Globally. | 7,889 | +5% | +23% | 192 | $2.4B | Series G$450M, May 2025 |
| 15 |  We help healthcare orgs collect more money faster | 102 | +5% | +15% | YC | $33.9M | Series A$29M, Jul 2023 |
| 16 |  Hosted Continuous Integration and Delivery for mobile apps | 189 | +3% | +6% | 2 | $83.5M | Series C$60M, Nov 2021 |
| 17 |  Decarbonizing the chemicals industry. | 133 | +2% | −1% | 0 | $856M | Debt$214M, Jun 2024 |
| 18 |  Document AI. One API Call. | 58 | +2% | +2% | YC | $12.7M | Series A$12M, Apr 2021 |
| 19 |  AI company transforming enterprise physical security to prevent… | 157 | +1% | +8% | 3 | $72.1M | Undisclosed round$20M, Oct 2023 |
| 20 |  #1 easiest-to-use payroll for startups | 80 | +1% | 0 | $6.9M | Seed$6.7M, Jun 2021 | |
| 21 |  Global Business Banking for Africa's Ambitious Businesses. | 423 | +1% | −2% | 0 | $50.7M | Debt$3M, Sep 2026 |
| 22 |  Modern employee benefits & health savings account (HSA) provider | 173 | +1% | −1% | 8 | $122M | Series C$80M, Oct 2021 |
| 23 |  Hogaru is a tech-enabled home services platform in Latin America. | 281 | +1% | +5% | 0 | $1.4M | Seed$810K, Mar 2017 |
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
116 companies were in Y Combinator's Winter 2017 batch (W17); 54 are active.
15 companies posted roles in the last 60 days, led by Rippling (192 roles), ACLU (90 roles) and Clipboard (20 roles). 20 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): MDalgorithms Inc. (+30%), Tolemi (+21%) and OneFin (+14%).
Largest latest rounds in the last 12 months, after their YC batch: AON3D ($11.5M).