All 220 companies in Y Combinator's Summer 2023 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 |
|---|---|---|---|---|---|---|
Intelligence that runs your operations. | 260 | +83% | +192% | 36 | $211M | Series C$150M, Aug 2026 |
The AI Native ERP for the fastest growing companies. | 199 | +45% | +165% | 11 | $108M | Series B$65M, Oct 2025 |
All-in-one POS for liquor stores | 198 | +26% | +37% | YC | $22.6M | Series A$15M, Oct 2026 |
The World's First Multi-Agent System for Procurement | 149 | +22% | +192% | 6 | $30M | Series A$30M, Mar 2026 |
AI Support Agent for Enterprises. | 128 | +24% | +156% | 3 | $64.6M | Series A$61M, Aug 2025 |
The enterprise platform for AI phone calls | 123 | +4% | +38% | 5 | $106M | Series C$50M, Jun 2026 |
AI-powered user interviews | 113 | +43% | +232% | 25 | $51.3M | Series B$30M, Dec 2025 |
AI-native operations for the banks | 107 | +16% | +47% | 1 | $95.3M | Series B$75M, Feb 2026 |
Helping businesses in emerging markets make pay their international… | 102 | +13% | +67% | YC | $18M | Series A$18M, Feb 2025 |
AI-Native CPQ & Billing for Modern Pricing Models | 83 | +9% | +20% | YC | $4.5M | Seed$4M, Sep 2025 |
Plaid for Telematics Data in Commercial Trucking | 74 | +28% | +90% | 1 | $23.1M | Series A$20M, Jul 2026 |
The all-in-one AI platform for companies. | 74 | +51% | +155% | 12 | $3.5M | Seed$3M, Apr 2024 |
AI patent drafting, prosecution, litigation and more for legal teams. | 72 | +33% | +125% | 3 | $55M | Series B$40M, Dec 2025 |
Claims infrastructure for African health insurance | 71 | +6% | +8% | 0 | $785K | Debt$285K, Jun 2026 |
AI Phone Agents for Healthcare Operations | 70 | +100% | +400% | 4 | $35M | Series A$30M, Jun 2026 |
Revenue Activation Platform | 69 | +30% | +103% | 6 | $18.3M | Series A$15M, Sep 2025 |
End-to-end content, learning, & deal intelligence for B2B sales teams | 68 | +45% | +183% | YC | $55M | Series B$40M, Feb 2026 |
iMessage for Sales | 65 | +18% | +30% | 1 | ||
The operating system for inbound B2B revenue | 63 | −41% | −35% | YC | $29.2M | Undisclosed round$26M, Apr 2026 |
Virtual Care for Type 2 Diabetes Reversal | 62 | +11% | +24% | 2 | $500K | YC investment$500K, Sep 2023 |
Automating Compliance for Construction | 62 | +51% | +148% | YC | $21.8M | Series A$15M, Jul 2026 |
Building and Protecting an Exciting Future | 62 | 0 | $80M | Series A$80M, Jul 2026 | ||
Make Banking Magical | 60 | +18% | +40% | 3 | $32.9M | Series A$29M, Aug 2025 |
The fastest way to build AI assistants on technical content | 51 | +11% | +50% | YC | $3.7M | Seed$3.2M, Oct 2024 |
Stripe for HSA/FSA payments | 51 | +13% | +31% | YC | $18.2M | Series A$15M, Sep 2025 |
AI that finds the right buyers and books sales meetings | 50 | −2% | −2% | 0 | $3M | Seed$3M, Apr 2026 |
Navigating patients to the right place, first time. | 46 | +10% | +28% | 5 | $3.9M | Seed$3.4M, Jul 2024 |
Visual Editor for React, powered by AI | 43 | −14% | −12% | YC | $5M | Seed$5M, Oct 2025 |
AI Customer Service Agents for trades and field services | 39 | +50% | +117% | 1 | $16.4M | Series A$12.9M, Jan 2026 |
The freshest data APIs for AI sales, recruiting, & growth products | 38 | 0% | +3% | 0 | $4.3M | Seed$4.3M, Jan 2024 |
A construction payroll and compliance platform built for specialty… | 38 | −7% | +100% | YC | $17M | Series A$10M, Mar 2026 |
Unmanned airships for inspecting our critical assets | 37 | +37% | +42% | 1 | $19M | Series A$14.6M, Oct 2026 |
Personalized learning built for schools | 37 | +19% | +76% | YC | $15.5M | Series ANov 2025 |
AI Operating System for Private Market Investors | 36 | −3% | +29% | 1 | $3M | Seed$3M, Feb 2024 |
AI enabled marketplace matching trucks with jobs | 33 | +18% | +27% | 2 | $15.5M | Series A$15M, Oct 2025 |
Open Source CRM | 31 | −6% | −9% | YC | $5M | Seed$5M, Nov 2024 |
Digital-native home painting franchise | 31 | +24% | +19% | 1 | $15M | Seed$11M, Sep 2023 |
Your 24/7 AI Recruiter | 28 | +4% | +27% | 0 | $2M | Seed$1.5M, Jan 2025 |
AI Scribe for veterinarians. Saving time and improving patient care. | 28 | −24% | +22% | 0 | $500K | YC investment$500K, Sep 2023 |
Headcount & Compensation Management | 28 | −3% | +4% | 0 | $18.3M | Seed$13.5M, Oct 2026 |
TurboTax for Medicaid | 28 | +75% | +65% | 1 | $22.3M | Series A$18.3M, Jul 2025 |
AI powered HR and Recruitment for people teams | 27 | −25% | −4% | YC | $16.5M | Series A$12M, Oct 2025 |
The cheapest way to borrow money | 26 | +73% | +225% | 1 | $500K | Seed$500K, Jun 2026 |
Farm Genetics Made Easy - Using DNA and Software | 25 | +14% | +127% | 0 | $5.8M | Seed$5.3M, Dec 2025 |
AI Compliance Platform for Healthcare Organizations | 24 | +100% | +300% | 1 | $11M | Series A$11M, Oct 2026 |
Software that streams data from databases to warehouses in real-time | 23 | +21% | +92% | 2 | $18.9M | Series A$15.1M, Jan 2026 |
Running clinical trials with AI | 23 | +10% | +15% | 0 | Pre-seed (before YC)Apr 2023 | |
Build and publish web apps in minutes. No coding required. | 23 | +15% | +21% | 0 | SeedJan 2025 | |
AI Powered All-In-One Payroll, HR + Recruiting | 22 | +22% | +57% | YC | $17.1M | Series A$12M, Apr 2026 |
AI agents that run insurance operations | 22 | +22% | +100% | 1 | $4.8M | Seed$2.3M, Sep 2025 |
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
220 companies were in Y Combinator's Summer 2023 batch (S23); 178 are active.
37 companies posted roles in the last 60 days, led by HappyRobot (36 roles), Outset (25 roles) and Langdock (12 roles). 87 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Shadeform (+110%), Prosper (+100%) and Readily (+100%).
Largest latest rounds in the last 12 months, after their YC batch: HappyRobot ($150M), Singularity ($80M) and Bretton AI ($75M).