All 197 companies in Y Combinator's Winter 2026 batch, with team size, growth, open roles and funding.
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 |
|---|---|---|---|---|---|---|
Turning everyday words and actions into usable training data. | 100 | −5% | +488% | 0 | $31.7M | Seed$31.2M, May 2026 |
Physical AI data lab | 95 | +579% | 3 | $8.7M | Seed$8.2M, May 2026 | |
Elite AI law firm for high growth companies | 49 | +227% | 2 | $11.5M | Seed$11.5M, Feb 2026 | |
Infrastructure for identity and fraud. | 38 | +27% | +46% | 0 | $8.5M | Seed$7.5M, May 2026 |
The first finance-compliant proactive AI that runs 24/7 | 31 | +24% | +94% | YC | ||
Take Notes in the Real World | 24 | +71% | +243% | 19 | $11.5M | Seed$11M, Jun 2026 |
Global AI-native law firm handling legal work with same-day turnaround | 22 | +120% | 1 | $9M | Seed$9M, May 2026 | |
AI video editor (raw footage into finished videos) | 20 | 2 | $500K | YC investment$500K, Mar 2026 | ||
Multilingual voice agents that outperform humans | 20 | +82% | +122% | 0 | $500K | YC investment$500K, Apr 2026 |
AI Recruiting Coordinator for Executive Search | 17 | +70% | YC | $500K | YC investment$500K, Mar 2026 | |
AI pentesting, that works! | 16 | +220% | 7 | $500K | YC investment$500K, Mar 2026 | |
Full-Stack AI Accounting | 16 | +220% | YC | $500K | YC investment$500K, Feb 2026 | |
Building AGI that can innovate. | 14 | +27% | +27% | 0 | $500K | YC investment$500K, Jan 2026 |
Automate enterprise workflows through chat | 14 | +8% | +133% | YC | $500K | YC investment$500K, Apr 2026 |
The first exchange to trade on attention. | 14 | 0 | $500K | YC investment$500K, Mar 2026 | ||
AI Agents That Run Hotel Operations. | 12 | +50% | 5 | |||
Space solar arrays that grow to the size of a football field in orbit | 12 | 5 | $10.5M | Seed$10M, Jul 2026 | ||
Keeping contractors on the job site, not behind a desk. | 12 | 0 | ||||
The Networking Layer of AI | 11 | 2 | $500K | YC investment$500K, Apr 2026 | ||
Agentic AI for intellectual property | 11 | 1 | $11M | Seed$10.5M, May 2026 | ||
Intelligence for Automotive Operations | 11 | YC | $500K | YC investment$500K, Mar 2026 | ||
Take command of the AI your company already runs on. | 11 | 0 | $500K | YC investment$500K, Mar 2026 | ||
Compression middleware that improves LLM outputs | 11 | +120% | 0 | $500K | YC investment$500K, Mar 2026 | |
AI Employees for Primary Care | 10 | 0 | $500K | YC investment$500K, Mar 2026 | ||
The first AI-powered worldbuilding and gameplay platform | 10 | +25% | +67% | YC | $500K | YC investment$500K, Mar 2026 |
Realtime AI for Sales Calls | 10 | +43% | 0 | |||
Intelligence for cultural institutions | 10 | +67% | 0 | $500K | YC investment$500K, Mar 2026 | |
A premier AI-native law firm & legal operating system for Startups. | 9 | YC | $5.7M | Seed$5.2M, Jul 2026 | ||
The AI sales agent for CPG brands | 9 | +13% | YC | $6.2M | Seed$4.2M, May 2026 | |
AI benchmarks that measure general intelligence and inspire new ideas | 9 | −25% | +13% | 0 | $500K | YC investment$500K, Mar 2026 |
Fastest inference anywhere: open models on-prem, hosted or on-device | 9 | −18% | YC | $500K | YC investment$500K, Oct 2025 | |
AI-native workspace for AEC | 9 | 0 | $500K | YC investment$500K, Mar 2026 | ||
Helping Healthcare Providers Speak Any Language | 9 | +80% | +50% | YC | $172K | Pre-seed (before YC)$172K, Nov 2024 |
AI Video Production for Professionals | 9 | 0 | $500K | YC investment$500K, Mar 2026 | ||
Revenue Agents for GTM teams | 9 | +50% | YC | $500K | YC investment$500K, Mar 2026 | |
Autonomous Drones for Earth Observation | 8 | +14% | +33% | YC | $500K | YC investment$500K, Apr 2026 |
The AI-Native Immigration Law Firm | 8 | YC | $500K | YC investment$500K, Mar 2026 | ||
The first AI-powered uranium discovery company | 8 | YC | $500K | YC investment$500K, Jan 2026 | ||
Quantitative research for autonomous e-commerce growth | 8 | +33% | YC | $5.8M | Seed$5.3M, May 2026 | |
Simulation environments for training & evaluating autonomous agents | 8 | YC | $500K | YC investment$500K, Mar 2026 | ||
API for performance-based payroll | 8 | +60% | 0 | $500K | YC investment$500K, Mar 2026 | |
The decision-support layer for aviation ops teams to know what to do… | 8 | +60% | YC | $500K | YC investment$500K, Mar 2026 | |
Software for enterprise energy procurement. | 8 | 0 | $500K | YC investment$500K, May 2026 | ||
The most thrilling way to create and rip digital collectible packs | 7 | +40% | YC | $8.5M | Seed$8M, Sep 2026 | |
Modular AI-Commanded Drones for Defence | 7 | YC | $500K | YC investment$500K, Apr 2026 | ||
AI operating system for mega-scale satellite networks. | 7 | 2 | $6.5M | Grant$6.5M, Apr 2026 | ||
Doomscroll to learn languages | 7 | 0 | $500K | YC investment$500K, Mar 2026 | ||
AI Revenue Engine for the Equipment Industry | 7 | YC | $500K | YC investment$500K, Feb 2026 | ||
The real-world intelligence and action layer | 7 | YC | $500K | YC investment$500K, Mar 2026 | ||
The AI data analyst for consumer brands | 6 | 0 | $1M | YC investment$500K, Mar 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
197 companies were in Y Combinator's Winter 2026 batch (W26); 192 are active.
12 companies posted roles in the last 60 days, led by Pocket (19 roles), Parameter (7 roles) and Brumby (6 roles). 65 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Human Archive (+579%), General Legal (+227%) and Parameter (+220%).
Largest latest rounds in the last 12 months, after their YC batch: Luel ($31.2M), General Legal ($11.5M) and Pocket ($11M).