Get an API keyGet an API key14 Y Combinator companies with a founder who worked at HubSpot before.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
ComenaS25
Rally1ComenaS25
Noloco+16%
Propexo+15%
CurtsyS16| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
 The AI negotiation agent to help you save money on SaaS. | S19Acquired | 192 | −10% | −13% | 0 | $216M | Series B$150M, Jun 2022 |
Agentic User Research Infrastructure | W22 | 50 | −6% | +22% | 1 | $20.4M | Series A$11M, Jun 2025 |
Curtsy is a sustainable clothing resale app. | S16 | 34 | −15% | −31% | 0 | $12.6M | Series A$11M, Jan 2021 |
Flexible Business Apps for Modern Teams | S21 | 22 | +16% | +22% | YC | $5.4M | Seed$4M, Aug 2024 |
Plaid for Commercial Real Estate | W23 | 15 | +15% | +36% | 0 | $3.3M | Seed$3.3M, Oct 2023 |
AI agents for distributors and manufacturers to automate order entry. | S25 | 13 | +30% | 5 | $500K | YC investment$500K, Sep 2025 | |
 Grok bot for GTM & Revenue teams | S26 | 10 | −17% | 0 | |||
 Spend Intelligence for Complex Enterprises | F24 | 9 | +50% | +50% | YC | $500K | YC investment$500K, Dec 2024 |
 Data observability for modern data teams | W20Acquired | 6 | +20% | +20% | 0 | $24.7M | Undisclosed round$15.6M, May 2024 |
 Creator marketing that scales like paid ads | X25 | 3 | 0 | $500K | YC investment$500K, Jun 2025 | ||
 Client management, communication, and projects in one platform. | S22 | 3 | YC | $500K | YC investment$500K, May 2022 | ||
 Turning infrastructure demand into action | F26 | 2 | 0 | ||||
 The AI Operating System for Auto Shops. | S26 | 2 | 0 | ||||
 Screen recorder for stunning product demo videos | S23 | 2 | 0 | $500K | YC investment$500K, Sep 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
14 Y Combinator companies have a founder who worked at HubSpot; 12 are active.
2 companies posted roles in the last 60 days, led by Comena (5 roles) and Rally (1 roles). 5 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Comena (+30%), Noloco (+16%) and Propexo (+15%).
No reported rounds after their YC batch in the last 12 months.