Get an API keyGet an API keyThe 5 YC F26 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 |  AI OS transforming courts, accelerating justice | 75 | +47% | +88% | YC | $25K | YC investment$25K, Jul 2026 |
| 2 |  Turn Your Taste Into Hires | 16 | +45% | +23% | 0 | ||
| 3 |  Banking for US companies operating globally | 10 | +43% | +43% | 0 | $1.5M | Pre-seed (before YC)$1.5M, Jan 2025 |
| 4 |  Self-improving agents that automate your growth bottlenecks | 16 | +23% | −6% | 0 | $6.8M | Seed (before YC)$5M, Aug 2023 |
| 5 |  We run benefits, payroll & compliance for startups, for free | 13 | +8% | +8% | 1 | $100K | Pre-seed (before YC)$100K, Jul 2025 |
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
219 companies were in Y Combinator's Fall 2026 batch (F26); 219 are active.
4 companies posted roles in the last 60 days, led by Quippy (7 roles), Bayworks (2 roles) and Wingman Law (1 roles). 21 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Adalat AI (+47%), Lantern AI (+45%) and Blinka (+43%).
Largest latest rounds in the last 12 months, after their YC batch: Aikido Technologies ($1.7M), ByteAsk ($1M) and The Subvocal Company ($800K).