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YC companies founded by ex-Palantir people

84 Y Combinator companies with a founder who worked at Palantir before.

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

Hiring the mostlast 60 days
35 roles
AmplitudeW12
  1. 2Flagright5
  2. 3Duffel5
See all 13
Fastest growingteam, 6 months
+140%
PlumeS24
  1. 2Educato+56%
  2. 3Novelcare+50%
See all 17
Shrinkingteam, 12 months
−35%
Credal.aiW23
  1. 2Zenysis−24%
  2. 3Strive Math−22%
See all 8
Raised the mostlast 12 months
$120M
Candid HealthW20
  1. 2Kalshi$30M
  2. 3Meticulous$15M
See all 11
Companies
84
Active
65
Hiring, last 60 days
13
Open roles, 60 days
62
People on these teams
10,829
Showing 50 of 84 companies
CompanyBatchTeam6 mo12 moOpen rolesTotal raisedLast round
The frontpage of the internet.
S05Acquired5,169+5%+13%0$1.3BSeries F$410M, Aug 2021
AI-powered contract management
S15868+3%+15%1$334MSeries E$150M, Jan 2022
This isn't just a marketplace; we're shaping the future of digital…
W18695−2%−3%0$427MSeries C$300M, Jan 2022
1st federally regulated exchange where people can trade on events
W19604+17%+83%YC$2.9BUndisclosed round$30M, Jul 2026
AI English Tutor
W22394+2%+12%0$500KYC investment$500K, Mar 2022
The autonomous revenue cycle management platform.
W20243+19%+45%2$220MSeries D$120M, Jul 2026
Health Insurance for Startups
W20137−7%+1%0$796MSecondary$200M, Sep 2026
The complete toolkit to sell travel.
S18660%+16%5$56.2MSeries B$30M, Oct 2019
AI-native AML compliance platform for fintechs & banks
W2263+34%+50%5$20.1MSeries A$12.5M, Jun 2026
Instantly offer SDKs and API Docs
W23Acquired62+3%−2%0$22.3MSeries A$9M, Apr 2025
Mobot is a QA-as-a-service platform using actual mechanical robots
W1946−2%+7%0$17.8MSeries A$12.5M, Aug 2022
Streamline your debt capital raise and management
W21Acquired45−2%−18%0$20.1MSeries A$17M, Jan 2023
Create video by chatting to AI
S2242−9%−19%0
Software to find the best sites for renewables on the electrical grid
W2238+23%+27%YC$500KSeed$500K, May 2025
Building powerful data analysis software for developing countries.
W1629−3%−24%1$21.9MSeries B$13.3M, Jun 2022
Automated e2e screenshot testing without writing or maintaining tests
S2128+8%+87%YC$19.1MSeries A$15M, Jul 2026
Worldwide exam-prep platform
S2425+56%+79%1$500KYC investment$500K, Jan 2025
API first electronic health record (EHR) that is open source
S2224+14%+71%1GrantMar 2023
Open-source platform to turn scripts into internal apps & workflows
S2223−12%−12%1Pre-seedAug 2022
AI Powered All-In-One Payroll, HR + Recruiting
S2322+22%+57%YC$17.1MSeries A$12M, Apr 2026
Carta for Web3: token vesting and DeFi investment management.
W22Acquired22−19%−29%0$15.7MSeed$15.2M, Sep 2022
Online Coding School for Kids 8-16
S2121−5%−22%YC$1.4MSeed$1.3M, Feb 2023
AI to understand and automates the physical world
S2120−9%−13%1SeedSep 2022
AI-Native Finance OS
S2218−14%−10%YC$4.5MSeed$4.5M, Aug 2024
The autonomous data engineer for the mid-market
S2416+45%+129%5$6.3MSeed$5.8M, Sep 2026
We help law enforcement solve crime
W2513+18%+160%YC$7MSeed$7M, Mar 2025
The Control Plane for Enterprise Agents
W2313−19%−35%1$10.3MSeries A$5M, Nov 2024
Renewable infrastructure deployment at scale.
S2412+140% 0$4.4MSeed$3.9M, Apr 2026
AI Platform for Winning Defense & Government Contracts
S2412−25%+33%3$3.3MSeed$3.3M, May 2025
AI-enabled procurement for government
W2412+9%+9%YC$2MSeries A$1.5M, Jan 2026
Empowering every doctor and every patient to participate in research
W2312+50%+50%0$1MSeed$1M, Apr 2023
AI Agents for Advisory & Financial Services.
S2411+22%+38%0
Consumer focus groups run by AI
S2510+25%+11%0$500KYC investment$500K, Sep 2025
Embedded Analytics and Data Sharing Platform
W2010−17%−41%0$14.4MSeries A$12M, Aug 2022
Tandem is a virtual office for remote and distributed teams.
S19Inactive100%0%0$7.5MSeries A$7.5M, Sep 2019
Scribe is an AI based Sales Development Representative that you can…
W17Acquired100%0%0$120KYC investment$120K, Mar 2017
The secret backbone of e-commerce.
W1410−9%+11%0$120KYC investment$120K, Mar 2014
Database of every product on the internet
S259+50% YC$6.5MSeed$6M, Dec 2025
Turnkey co-ownership & management of properties
W22Inactive9  0$500KYC investment$500K, Mar 2022
AI agents for customer support.
S209+13%+13%YCSeedSep 2021
Design and build great interfaces
W2370%+17%0
Team-based authentication for B2B SaaS
W2270%0%YC$2.6MSeed$2.6M, Jul 2022
ML models automatically monitor business performance
W20Inactive70%+17%0Pre-seedMar 2020
Robotics
X266  YC
Computational Law
W256−40%−14%YC$500KYC investment$500K, Feb 2025
AI-powered EHR for independent mental health professionals
W236−14%−40%YC$500KYC investment$500K, Apr 2023
AI for the physical world
S255  0$500KYC investment$500K, Jan 2026
Multi-document processing for your risk teams, AI agents, pipelines
X255−29% YC$1.6MPre-seed$1.6M, Apr 2025
Turn scattered data into one platform for decision-making
X2550%0%0$500KYC investment$500K, Jun 2025
The living map of your organization
F245  0

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-Palantir founded YC companies

How many ex-Palantir founded YC companies are there?

84 Y Combinator companies have a founder who worked at Palantir; 65 are active.

Which ex-Palantir founded YC companies are hiring?

13 companies posted roles in the last 60 days, led by Amplitude (35 roles), Flagright (5 roles) and Duffel (5 roles). 31 mark themselves as hiring on YC's directory.

Which ex-Palantir founded YC companies are growing fastest?

By team growth over 6 months (10+ people): Plume (+140%), Educato (+56%) and Novelcare (+50%).

Which ex-Palantir founded YC companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: Candid Health ($120M), Kalshi ($30M) and Meticulous ($15M).

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