Get an API keyGet an API key10 Y Combinator companies with a founder who worked at Docker, Inc before.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
PulleyW20
OllamaW21PulleyW20OllamaW21| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
Get up and running with large language models. | W21 | 77 | +38% | +64% | 0 | $80.1M | Series B$65M, Jul 2026 |
Pulley helps founders and finance teams manage their equity and cap… | W20 | 63 | −43% | −31% | 1 | $50.1M | Series B$40M, Jul 2022 |
 Run machine learning models in the cloud | W20Acquired | 25 | 0% | −50% | 0 | $57.8M | Series B$40M, Dec 2023 |
 Develop your CI/CD pipelines as code and run them anywhere | W19 | 15 | 0% | −6% | 0 | $30M | Series A$20M, Mar 2022 |
 Cloud Development Environments with one click | W19 | 13 | −13% | −19% | YC | $18.1M | Series A$15M, Jan 2022 |
 Pipekit scales data & CI pipelines for enterprises | S21 | 8 | −11% | 0 | $125K | YC investment$125K, Oct 2021 | |
 Product design tool that lets everyone design like a designer | W23 | 7 | 0% | 0% | 0 | $500K | YC investment$500K, Apr 2023 |
 Jam.gg, play couch games online with friends | S20Inactive | 4 | 0 | $14.9M | Series A$12M, Oct 2021 | ||
 Measure and communicate engineering activity | S21 | 3 | 0 | $125K | YC investment$125K, Aug 2021 | ||
 AI DevOps Engineer | W26Inactive | 2 | 0 | $500K | YC investment$500K, Apr 2026 |
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
10 Y Combinator companies have a founder who worked at Docker, Inc; 7 are active.
1 companies posted roles in the last 60 days, led by Pulley (1 roles). 2 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Ollama (+38%).
Largest latest rounds in the last 12 months, after their YC batch: Ollama ($65M).