22 Y Combinator companies with a founder who worked at Robinhood before.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
Mo, the AI QA engineer that bug-bashes your app before every release | W24 | 55 | +17% | 5 | $19.2M | Series A$15M, Nov 2025 | |
AI for risk and compliance | W24 | 34 | +21% | +70% | 1 | $3.5M | Seed$3M, Aug 2024 |
Open Source AI Chat | W24Acquired | 28 | −24% | −18% | 0 | $10.5M | Seed$10M, Mar 2025 |
The GPU Cloud Marketplace | S23 | 21 | +110% | +200% | YC | SeedJan 2025 | |
Help high-growth tech companies hire strong engineers | S22Acquired | 17 | −11% | 0 | $500K | YC investment$500K, Jan 2023 | |
Build a website by chatting with AI | S23 | 15 | +15% | +15% | 0 | Pre-seedAug 2023 | |
The AI-native workspace to design your product. | W23 | 12 | +20% | +71% | 1 | $6M | Series A$6M, Nov 2025 |
Delinquency reduction and automation software for institutional… | W23Acquired | 10 | −9% | −17% | 0 | SeedJan 2025 | |
AI Digital Workers for Supply Chain | X25 | 8 | −11% | +33% | YC | SeedJun 2025 | |
Your personal investing agent | S25 | 7 | −12% | +17% | 0 | $5.5M | Seed$5M, Apr 2026 |
AI Agents for Location | W24 | 5 | −17% | 0 | $500K | YC investment$500K, Mar 2024 | |
Crypto Deposits, Wallet Funding, and Pay-with-crypto Infra | S23Acquired | 5 | 0% | 0% | 0 | $500K | YC investment$500K, Sep 2023 |
Frontier AI to stop fraud, abuse, and financial crimes. | W23 | 5 | 0 | ||||
The world's simplest Bitcoin self-custody solution | W23 | 5 | 0% | −17% | 0 | $500K | YC investment$500K, Apr 2023 |
Predict job applicant performance for entry-level support roles | W17Acquired | 5 | 0% | −29% | 0 | $1M | Seed$1M, Aug 2017 |
The memory computer for your digital life. | W25 | 4 | 0 | $500K | YC investment$500K, Mar 2025 | ||
Your email assistant because you deserve a better morning | S24 | 3 | 0 | $500K | YC investment$500K, Sep 2024 | ||
AI Cost Management: Track and attribute AI spend across every provider | W26 | 2 | 0 | ||||
Catch wrong LLM answers before your customers do | F26 | 1 | 0 | ||||
AI Code Review tool that runs your app | S24 | 1 | 0 | $500K | YC investment$500K, Sep 2024 | ||
AI medical summaries in minutes | S24Inactive | 1 | 0 | $500K | YC investment$500K, Sep 2024 | ||
The open source Postman alternative. | S23 | 1 | 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
22 Y Combinator companies have a founder who worked at Robinhood; 16 are active.
3 companies posted roles in the last 60 days, led by Momentic (5 roles), ROE (1 roles) and Magic Patterns (1 roles). 5 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Shadeform (+110%), ROE (+21%) and Magic Patterns (+20%).
Largest latest rounds in the last 12 months, after their YC batch: Momentic ($15M), Magic Patterns ($6M) and Astor ($5M).