Get an API keyGet an API keyThe 18 YC S19 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 |  One prompt. One app. One living workspace for teams. | 16 | −11% | −33% | YC | $5.2M | Undisclosed round$5M, Jul 2023 |
| 2 |  A better data science notebook. | 22 | +29% | −31% | YC | $23.8M | Series A$20M, Jan 2022 |
| 3 |  Pull Requests as a Service | 23 | −4% | −28% | 0 | $5.2M | Undisclosed round$5M, Nov 2024 |
| 4 |  23andMe for environmental exposures | 18 | −14% | −14% | 0 | $436K | Equity crowdfunding$286K, Jan 2022 |
| 5 |  AI customer reputation & performance management for restaurant chains. | 19 | −10% | −14% | 0 | $12.5M | Series A$10M, Sep 2023 |
| 6 |  Building a better way to meet online. | 82 | +8% | −13% | 2 | $76M | Series B$50M, Nov 2021 |
| 7 |  Subscription pharmacy for patients with chronic diseases in LatAm. | 23 | −8% | −12% | 0 | $4.9M | Seed$1.6M, Nov 2021 |
| 8 |  LineLeap gets customers to the fun, faster. | 92 | +3% | −11% | 1 | $30.8M | Undisclosed round$10M, Nov 2025 |
| 9 |  AppLovin for the food & CPG | 51 | −2% | −9% | 0 | $8M | Seed$5.3M, Apr 2023 |
| 10 |  Trella is a platform that connects shippers to carriers. Trella… | 211 | −6% | −9% | 1 | $60.5M | Undisclosed round$3.5M, Jun 2023 |
| 11 |  Best in class company intelligence data. | 43 | −9% | −7% | 0 | $150K | YC investment$150K, Aug 2019 |
| 12 |  Training and connecting untapped talent with global opportunities | 295 | −2% | −6% | 0 | $19.7M | Series A$4M, Aug 2022 |
| 13 |  Open-source, self-hosted, session replay tool for developers. | 55 | −4% | −5% | 0 | $6.2M | Seed$4.7M, Jun 2022 |
| 14 |  Juno is the university of the future. | 22 | −4% | 0 | $150K | YC investment$150K, Aug 2019 | |
| 15 |  Shiru leverages ML to create proteins to feed the world sustainably. | 25 | 0% | −4% | 0 | $57M | Series B$16M, Nov 2024 |
| 16 |  Canix makes it easy to get and stay compliant as a cannabis business. | 28 | +4% | −3% | 0 | $14M | Series A$10M, Jun 2022 |
| 17 |  The design system layer for coding agents | 56 | −5% | −2% | 0 | $11.2M | Series A$10M, Aug 2021 |
| 18 |  Delivering fruits and vegetables to multi-segment restaurants and… | 191 | −2% | −2% | 0 | $34.2M | Series B$13.5M, Jan 2023 |
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
174 companies were in Y Combinator's Summer 2019 batch (S19); 100 are active.
19 companies posted roles in the last 60 days, led by TRM Labs (67 roles), Lokal (63 roles) and Hightouch (52 roles). 30 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): CoLab (+31%), Demand Curve (+30%) and Deepnote (+29%).
Largest latest rounds in the last 12 months, after their YC batch: Hightouch ($150M), Odeko ($96M) and TRM Labs ($70M).