Get an API keyGet an API keyThe 12 YC W17 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 |  Marketplace for insurance securitization. | 24 | −14% | −37% | YC | $441M | Undisclosed round$100M, Sep 2024 |
| 2 |  Mednet helps doctors answer their toughest clinical questions, … | 46 | −6% | −12% | 1 | $1.5M | Grant$225K, Jan 2019 |
| 3 |  Getting kids ready for school in India. | 39 | −11% | 0 | GrantMar 2017 | ||
| 4 |  Build internal tools fast. | 407 | −2% | −11% | 13 | $141M | Series C$45M, Jul 2022 |
| 5 |  Snappr is the one-stop-shop for visual content creation | 384 | −5% | −9% | YC | $41M | Series B$28M, Oct 2025 |
| 6 |  We make healthcare in emerging markets affordable and accessible | 578 | −1% | −8% | 6 | $48.3M | Series B$40M, Feb 2022 |
| 7 |  ISP for Africa | 183 | −5% | −8% | 0 | $5.1M | Debt$3M, Oct 2023 |
| 8 |  Neural interfaces to understand and use nerve data in medicine. | 23 | −8% | −8% | 0 | $46.8M | Undisclosed round$20M, Jan 2024 |
| 9 |  E-commerce 2.0 | 38 | −3% | −7% | 0 | $13M | Seed$10M, Mar 2021 |
| 10 |  Global Business Banking for Africa's Ambitious Businesses. | 423 | +1% | −2% | 0 | $50.7M | Debt$3M, Sep 2026 |
| 11 |  Decarbonizing the chemicals industry. | 133 | +2% | −1% | 0 | $856M | Debt$214M, Jun 2024 |
| 12 |  Modern employee benefits & health savings account (HSA) provider | 173 | +1% | −1% | 8 | $122M | Series C$80M, Oct 2021 |
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).