Get an API keyGet an API keyThe 9 YC W14 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 |  PiinPoint helps businesses find the best locations for growth | 16 | +14% | 0 | $1.4M | Seed$1.4M, Sep 2014 | |
| 2 |  A developer-friendly and enterprise-grade search API. | 923 | +9% | +10% | 19 | $334M | Series D$150M, Jul 2021 |
| 3 |  Enabling li-ion batteries to charge ultra fast without compromising… | 19 | +6% | +19% | 0 | $3.9M | Grant$3M, Jan 2026 |
| 4 |  Platform for global logistics. | 2,978 | +3% | +8% | 93 | $2.7B | Secondary$260M, Apr 2026 |
| 5 |  AptDeco is the easiest way to buy and sell used furniture | 35 | +3% | +13% | YC | $8.7M | Equity crowdfunding$6.2M, Mar 2023 |
| 6 |  Customer communication and payments platform. | 1,203 | +3% | +6% | 5 | $172M | Secondary$3.8M, Jun 2021 |
| 7 |  Training patients and their families with health skills | 408 | +3% | 0% | 4 | $120K | Undisclosed round$120K, Jan 2016 |
| 8 |  Patient engagement for low-income populations | 67 | +2% | +5% | 3 | $23.1M | Grant$25K, Sep 2025 |
| 9 |  digital mortgage closing | 384 | +1% | +3% | 2 | $253M | Series D$150M, May 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
74 companies were in Y Combinator's Winter 2014 batch (W14); 29 are active.
10 companies posted roles in the last 60 days, led by Flexport (93 roles), Algolia (19 roles) and Guesty (17 roles). 5 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): PiinPoint (+14%), Algolia (+9%) and GBatteries (+6%).
No reported rounds after their YC batch in the last 12 months.