Get an API keyGet an API keyThe 5 YC S14 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 |  Our mission is to make biology easier to engineer. | 487 | −7% | −24% | 1 | $1.6B | Grant$775M, Apr 2024 |
| 2 |  Protocol Labs makes internet protocols: IPFS, Filecoin, and more. | 99 | −9% | −15% | 0 | $13.4M | Undisclosed round$2.5M, Mar 2024 |
| 3 |  Intelligence to accelerate human health. | 306 | −15% | −13% | YC | $97M | Series C$60M, Jun 2022 |
| 4 |  Get measured by your phone in under 30 seconds for perfect fitting… | 53 | −2% | −5% | 0 | $7.2M | Series A$5.2M, Jun 2018 |
| 5 |  Try-at-home service for fine spirits | 78 | −1% | −2% | 0 | $13.9M | Undisclosed round$5M, Aug 2019 |
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
78 companies were in Y Combinator's Summer 2014 batch (S14); 21 are active.
8 companies posted roles in the last 60 days, led by Helion Energy (49 roles), ShipBob (35 roles) and Checkr (28 roles). 5 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Oklo (+28%), Helion Energy (+11%) and Backpack (+7%).
Largest latest rounds in the last 12 months, after their YC batch: Helion Energy ($500M).