All 192 companies in Y Combinator's Spring 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 |
|---|---|---|---|---|---|---|
Real-world training data for frontier AI labs and robotics. | 53 | +194% | +152% | YC | ||
AI recruiters for staffing agencies | 29 | +4% | −3% | YC | $1M | YC investment$500K, Mar 2026 |
Ploy turns your website into your company's growth engine. | 27 | +93% | 2 | $27M | Seed$27M, Jun 2026 | |
Marketplace for AI agents to hire humans. | 25 | 0 | $12M | Seed (before YC)$12M, Feb 2026 | ||
Agent native workspace for heavy parallel workflows on the web | 24 | −11% | +4% | 0 | $751K | YC investment$500K, Mar 2026 |
Counter Drone Systems. $1.6m sales. We delivered for the DoW. | 22 | +120% | +214% | 10 | $500K | YC investment$500K, Jun 2026 |
Patreon for AI Originals | 22 | +144% | 0 | $500K | YC investment$500K, Jun 2026 | |
AI Scheduling for Short Haul Trucks | 21 | +91% | +91% | 0 | $500K | YC investment$500K, Jun 2026 |
Vanta for physical products | 21 | +31% | +200% | 1 | $13.6M | Seed$11M, Sep 2026 |
AI-native recruiting agency | 20 | 0 | $500K | YC investment$500K, Dec 2025 | ||
Scale marketing campaigns across hundreds of personas | 20 | +233% | +300% | 0 | $500K | YC investment$500K, Jun 2026 |
Agentic hiring marketplace | 16 | +60% | YC | $500K | YC investment$500K, May 2026 | |
robots & software for farms | 16 | +78% | 0 | $500K | YC investment$500K, May 2026 | |
Programmable DNA drug destroying all cancers, unlocking 80% of targets | 14 | 0 | $500K | YC investment$500K, Jun 2026 | ||
Computer use agents to deploy enterprise marketing campaigns | 14 | +27% | +8% | YC | $11.8M | Seed$9.8M, Jun 2026 |
Design your home instantly with AI | 13 | +18% | 0 | $17.6M | Seed$16M, May 2026 | |
Agents that own the work | 13 | +160% | YC | $45.8M | Undisclosed round$12.8M, Oct 2026 | |
We make the most compact nuclear reactors | 13 | +117% | 0 | $32.1M | Undisclosed round$620K, Sep 2026 | |
Tolmo is the AI security platform that secures every layer of cloud… | 13 | +44% | 5 | $22M | Seed$22M, Jun 2026 | |
AI-native observability and security platform | 12 | +50% | 0 | $8.5M | Seed$8M, Jun 2026 | |
AI Native Sourcing Broker For Overseas Manufacturing | 12 | 0% | 0% | 0 | $500K | YC investment$500K, Mar 2026 |
Agents that build personal injury cases | 11 | 0 | $500K | YC investment$500K, Jun 2026 | ||
AI primary care doctor | 10 | +67% | YC | $12M | Pre-seed$12M, May 2026 | |
Plena is the AI operating system for specialty medical practices | 10 | +67% | +67% | YC | $500K | YC investment$500K, Jun 2026 |
Live Evaluation Arenas for Financial Work | 9 | −18% | +50% | 0 | ||
Cancer screening without barriers | 9 | +29% | +29% | 1 | $500K | YC investment$500K, Jun 2026 |
Scalable windows desktop automations | 9 | +29% | +80% | YC | ||
AI Native Shopify | 9 | YC | $500K | YC investment$500K, Jun 2026 | ||
AgentRel, Devrel For Agents | 9 | YC | $1.4M | Seed$1.3M, Oct 2026 | ||
Human Intelligence for Robots | 9 | YC | $500K | YC investment$500K, Jun 2026 | ||
AI Reservation System for Restaurants | 8 | YC | $500K | YC investment$500K, Jun 2026 | ||
Human-centered AI for contact centers. | 8 | 2 | ||||
Robotic pitstops for self-driving cars | 8 | YC | $10.5M | Seed$10M, Jun 2026 | ||
Real world training envs for healthcare AI models | 8 | YC | $500K | YC investment$500K, Jun 2026 | ||
AI-Native FDA Regulatory Services | 8 | 0 | $500K | YC investment$500K, Jun 2026 | ||
AI Customer Support for Fortune 500-scale enterprises | 7 | +40% | 0 | |||
AI for Commercial Lending | 7 | −30% | YC | $500K | YC investment$500K, Jun 2026 | |
AI model built for high accuracy deterministic tasks | 7 | +40% | +40% | YC | $2M | YC investment$500K, Jun 2026 |
Let agents talk to your customers | 7 | +17% | +17% | 0 | ||
AI agents that interviews every employee to hand context to AI tools. | 7 | 0 | $500K | YC investment$500K, Jun 2026 | ||
Fast, smart, accessible 3D ultrasound that anyone can use | 7 | +40% | 0 | $500K | YC investment$500K, Jun 2026 | |
Robotics | 6 | YC | ||||
Agent harnesses for asset managers | 6 | 1 | ||||
iMessage infrastructure for business | 6 | 0 | ||||
Autonomous insurance brokerage for small businesses | 6 | 1 | $500K | YC investment$500K, Jun 2026 | ||
AI Health Assistant for Chronic Illness | 6 | YC | $500K | YC investment$500K, Jun 2026 | ||
Annotations for robotics data | 6 | 0 | ||||
Real-world sandboxes to test and train AI agents | 6 | 0 | $10.5M | Seed$10M, Aug 2026 | ||
Construction Cost Intelligence. | 6 | 0 | ||||
the software verification layer for the agentic coding era | 6 | YC | $9.7M | Seed$8M, Nov 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
192 companies were in Y Combinator's Spring 2026 batch (X26); 188 are active.
13 companies posted roles in the last 60 days, led by 9 Mothers (10 roles), Tolmo (5 roles) and Madrone (5 roles). 65 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): InstaAgent (+233%), Hub (+194%) and Tasklet (+160%).
Largest latest rounds in the last 12 months, after their YC batch: Ploy ($27M), Tolmo ($22M) and Drafted ($16M).