Get an API keyGet an API keyThe 20 YC W18 companies whose team shrank the most in the last 12 months (active companies that had 20+ people a year ago).
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 |  Every student's AI coach for college readiness | 79 | −15% | −50% | YC | $11.3M | Series A$10.5M, Aug 2020 |
| 2 |  Powering a better future for textiles. | 64 | −4% | −40% | 0 | $191M | Undisclosed round$40M, Mar 2025 |
| 3 |  Security auditing for Web3 | 52 | −5% | −32% | 0 | $3.2M | Series A$3.1M, Jun 2022 |
| 4 |  Digital financial services for students in Southeast Asia | 102 | −19% | −24% | 0 | $20M | Grant$15M, Nov 2024 |
| 5 |  The gold standard in cryptocurrency portfolio tracking and taxes | 92 | −18% | −24% | YC | $102M | Series A$100M, Jan 2022 |
| 6 |  No code enterprise SaaS for financial control automation. | 339 | −17% | −23% | 7 | $85M | Series B$30M, Jun 2025 |
| 7 |  AI games and entertainment on TV | 91 | −8% | −23% | YC | $107M | Series C$55M, Jul 2024 |
| 8 |  Your AI partner for North America truckload freight | 62 | −14% | −18% | 0 | $74.4M | Series B$36.5M, Jun 2023 |
| 9 |  We grow cells for biotech companies. | 63 | −19% | −18% | 1 | $102M | Series C$80M, Dec 2025 |
| 10 |  The online company that gets everyone offline | 76 | −3% | −16% | 0 | $81.4M | Series B$60M, Jun 2022 |
| 11 |  Contact center AI platform. | 358 | +6% | −15% | 3 | $214M | Series C$125M, Apr 2022 |
| 12 |  PROVEN is using AI, data and personalization to disrupt CPG | 29 | −9% | −15% | 2 | $18.2M | Series A$12.2M, Sep 2023 |
| 13 |  Super is the first and leading Indonesian social commerce platform | 223 | +2% | −12% | 0 | $105M | Series C$70M, Jun 2022 |
| 14 |  Order ahead at restaurants and get rewards with friends. | 78 | +3% | −8% | 0 | $95.6M | Series B$70M, Jun 2021 |
| 15 |  Vena Medical is providing physicians with the world's smallest camera… | 26 | +30% | −7% | 0 | $198K | YC investment$40K, Feb 2018 |
| 16 |  Robotics for wind turbine maintenance. | 442 | −2% | −5% | 3 | $116M | Series B$62.3M, Jun 2025 |
| 17 |  Population health analytics powered by wastewater. | 26 | −7% | −4% | 0 | $41.4M | Series A$13.4M, Jun 2025 |
| 18 |  This isn't just a marketplace; we're shaping the future of digital… | 695 | −2% | −3% | 0 | $427M | Series C$300M, Jan 2022 |
| 19 |  A mental health benefits platform for employers. | 920 | +2% | −1% | 5 | $167M | Series D$74M, Feb 2021 |
| 20 |  Veriff is a global AI-native identity platform building trust online | 514 | −6% | −1% | 5 | $192M | Series C$100M, Jan 2022 |
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
146 companies were in Y Combinator's Winter 2018 batch (W18); 77 are active.
24 companies posted roles in the last 60 days, led by Replit (10 roles), Swayable (9 roles) and BioRender (9 roles). 25 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Vena Medical (+30%), ZBiotics (+16%) and Runa (+12%).
Largest latest rounds in the last 12 months, after their YC batch: Replit ($400M), Culture Biosciences ($80M) and Jasper.ai ($400K).