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YC companies founded by ex-Stripe people

50 Y Combinator companies with a founder who worked at Stripe before.

Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.

Hiring the mostlast 60 days
2 roles
AccordW20
  1. 2Numeral2
  2. 3GovEagle2
See all 7
Fastest growingteam, 6 months
+73%
SyntheticFiS23
  1. 2Loula+50%
  2. 3Cleva+27%
See all 8
Shrinkingteam, 12 months
−9%
SafetyKitS23
See all 1
Raised the mostlast 12 months
$100M
NumeralW23
  1. 2Lua Global Inc$5.8M
  2. 3Astor$5M
See all 5
Companies
50
Active
36
Hiring, last 60 days
7
Open roles, 60 days
10
People on these teams
1,368
Showing 50 of 50 companies
CompanyBatchTeam6 mo12 moOpen rolesTotal raisedLast round
The AI-native sales tax solution.
W23173+25%+63%2$158MSeries C$100M, Sep 2026
Global neobank for emerging markets
W24147+27%+34%0$1.5MUndisclosed round$1.5M, Jan 2026
Basilica is an API that embeds high-dimensional data like images and…
W19Inactive67 +5%0Undisclosed roundJan 2021
Payroll, benefits, state compliance & other bullsh*t for startups
S24Acquired62−2%−17%0$9.1MSeed$8.6M, Aug 2025
API-first banking for ambitious technology companies.
S2032 +33%0Undisclosed roundAug 2020
Digital-native home painting franchise
S2331+24%+19%1$15MSeed$11M, Sep 2023
The mid-market agent platform
F2527+4%+125%1$6.3MSeed$5.8M, Apr 2026
The cheapest way to borrow money
S2326+73%+225%1$500KSeed$500K, Jun 2026
Enabling birth & postpartum doulas to easily accept insurance.
W2321+50%+75%0SeedJan 2026
AI agents for risk, compliance, and safety
S2320−13%−9%YC$32.1MSeries A$27.2M, Apr 2025
W2320+25%+33%0SeedJan 2025
AI for Government Contractors
W2320+11%+33%2$2.5MSeed$2.5M, Mar 2025
AI-native Operating System for Enterprise Ecommerce Companies
S2019−5%+12%YC$125KSeed$125K, Nov 2022
Bun is an incredibly fast all-in-one JavaScript toolkit
S19Acquired180%−31%0$7MSeed$7M, Aug 2022
Travel planner for researching, organizing, and mapping your trip
W19160%+23%0$1.6MSeed$1.5M, Sep 2021
Enterprise-grade AI support reps for call centers
W259−18%+80%YC$500KYC investment$500K, Mar 2025
AI Digital Workers for Supply Chain
X258−11%+33%YCSeedJun 2025
Attunement turns fragmented behavioral health records into structured…
W248  0$500KYC investment$500K, Apr 2024
AI to increase payment acceptance and reduce fraud for businesses
W238+33%+60%0$500KYC investment$500K, Apr 2023
Crypto Neo-Bank (WhatsApp moment for bank accounts)
W22Acquired8−56%−50%0$4.3MSeed$4.3M, Mar 2022
The cloud platform built for coding agents
F2570%0%0
Your personal investing agent
S257−12%+17%0$5.5MSeed$5M, Apr 2026
AI Healthcare Provider Credentialing Software
W257+40% 1$500KYC investment$500K, Mar 2025
AI-powered meeting notes and automations
W247+17%+17%YC$3MSeed$2.5M, Nov 2024
The AI platform for CRE investment teams
S236+20%+20%0SeedSep 2023
Financial OS for Modern Fleets
W255−17% 0$500KYC investment$500K, Mar 2025
Financial infrastructure for the agent economy
W264  0
AI tooling
W244−20%−33%0$500KYC investment$500K, Apr 2024
Webflow for the Backend
W234 −20%0$500KUndisclosed round$500K, Jan 2025
Open source Voice AI
W23Acquired4  0$3.8MSeed$3.3M, Feb 2024
Financing education through Income Share Agreements
S19Inactive4  0$107MSeed$6.3M, Jan 2022
RWE Generation in minutes
X253  0$500KYC investment$500K, Apr 2025
Flexible systems for clinical reasoning.
W24Acquired3 −50%0
AI Agent for Billpay platforms to pay invoices with virtual cards
W233  0$500KYC investment$500K, Apr 2023
Usage Metering, AI & API Monetization
W23Acquired3  0$3MSeed$3M, Mar 2024
The E2E testing layer for AI-driven development
S252  0$500KYC investment$500K, Sep 2025
AI agents for web testing
X252  0$500KYC investment$500K, Jul 2025
AI that updates your CRM for you
W242  YC$2.7MSeed$2.2M, Sep 2024
Your team’s AI powered communication tool
W24Inactive2  0$500KYC investment$500K, Apr 2024
Deploy Machine Learning Models with One Command
W232  0$500KYC investment$500K, Apr 2023
AI browser copilot for teams
W232  0$500KYC investment$500K, Apr 2023
serverless platform for real-time data
S22Inactive2  0$500KYC investment$500K, Aug 2022
AI-powered code security
X25Acquired1  0$500KYC investment$500K, Jun 2025
The AI Secretary for Email and Calendar.
W251  0$500KYC investment$500K, Mar 2025
Embed charts, dashboards and exports in your app
S231  0$500KYC investment$500K, Sep 2023
Incentives and financing for energy efficiency upgrades
S23Inactive1  0$500KYC investment$500K, Sep 2023
Automatic software R&D capitalization
W23Inactive1  0$500KYC investment$500K, Apr 2023
AI-native operating system for analytics teams
W23Inactive1  0$500KYC investment$500K, Apr 2023
Open-source, design centric software for interacting with blockchains
S19314  0$19.5MSeries A$18M, Oct 2021
The Revenue Excellence Platform
W20223  2$17MNon-equity support$10M, Mar 2026

How this works

1. The roster

Every launched company in YC's public directory, with its batch, status, industry and location. New companies show up the week YC lists them.

2. The numbers

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.

3. The lists

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.

Built with Crustdata. Get your own API key and build your own.

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.

  • Company search for team size, growth and funding
  • Job search with a count by company, for who is hiring and for what
  • A watch that re-runs the search weekly and sends only what changed
# 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

Questions about ex-Stripe founded YC companies

How many ex-Stripe founded YC companies are there?

50 Y Combinator companies have a founder who worked at Stripe; 36 are active.

Which ex-Stripe founded YC companies are hiring?

7 companies posted roles in the last 60 days, led by Accord (2 roles), Numeral (2 roles) and GovEagle (2 roles). 12 mark themselves as hiring on YC's directory.

Which ex-Stripe founded YC companies are growing fastest?

By team growth over 6 months (10+ people): SyntheticFi (+73%), Loula (+50%) and Cleva (+27%).

Which ex-Stripe founded YC companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: Numeral ($100M), Lua Global Inc ($5.8M) and Astor ($5M).

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