CrustdataGet an API key

YC companies founded by ex-Johnson & Johnson people

14 Y Combinator companies with a founder who worked at Johnson & Johnson before.

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

Hiring the mostlast 60 days
2 roles
RinseS21
  1. 2Algen Biotechnologies1
See all 2
Fastest growingteam, 6 months
+18%
Algen BiotechnologiesW20
  1. 2GetCrux+14%
  2. 3Reach+3%
See all 3
Shrinkingteam, 12 months
−5%
ReachS15
See all 1
Raised the mostlast 12 months
$37M
Altay TherapeuticsW20
  1. 2Algen Biotechnologies$12.5M
See all 2
Companies
14
Active
11
Hiring, last 60 days
2
Open roles, 60 days
3
People on these teams
792
Showing 14 of 14 companies
CompanyBatchTeam6 mo12 moOpen rolesTotal raisedLast round
API-connected healthcare infrastructure.
S17Acquired310−5%−9%0$255MSeries D$142M, Oct 2021
Personalized Performance Nutrition
W1847−6% 0$7.6MSeries B$7.5M, Sep 2024
Long range, wireless energy distribution that scales
S1539+3%−5%YC$39.1MGrant$30M, Jun 2026
AI Creative Strategist
W2424+14%+50%YC$2.6MYC investment$500K, Mar 2024
Using CRISPR to find treatments for cancer and inflammation
W2020+18%+33%1$21.4MSeries A$12.5M, Aug 2026
Altay develops disease-modifying therapies targeting transcription…
W207+17%+40%0$40.2MSeries A$37M, Oct 2026
Unifying how the optical industry does business.
W2360%+20%0$3.7MSeed$3.7M, Oct 2023
Catheter-based solution to treat chronic heart failure.
W2260% 0$1MNon-equity support$500K, Jul 2023
We're building the One Medical for dental
S2150%−29%2$125KYC investment$125K, Aug 2021
Understand your users beyond the numbers
X253−57%−50%0$5.5MSeed$5M, Sep 2025
Turning HR data into actionable insights
W21Acquired1  0$2.8MSeed$2.7M, Mar 2024
Selia is an online platform connecting individuals with top-quality…
W22268  0$800KYC investment$500K, Feb 2022
The career network for healthcare workers
S2156  0$1.5MSeed$1.2M, May 2022
Haywheel is an artisan food marketplace for restaurants and specialty…
S16Inactive  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-Johnson & Johnson founded YC companies

How many ex-Johnson & Johnson founded YC companies are there?

14 Y Combinator companies have a founder who worked at Johnson & Johnson; 11 are active.

Which ex-Johnson & Johnson founded YC companies are hiring?

2 companies posted roles in the last 60 days, led by Rinse (2 roles) and Algen Biotechnologies (1 roles). 3 mark themselves as hiring on YC's directory.

Which ex-Johnson & Johnson founded YC companies are growing fastest?

By team growth over 6 months (10+ people): Algen Biotechnologies (+18%), GetCrux (+14%) and Reach (+3%).

Which ex-Johnson & Johnson founded YC companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: Altay Therapeutics ($37M) and Algen Biotechnologies ($12.5M).

Browse YC companies

By batch

Show fewer

By industry

Show fewer

By location

Show fewer

By founders' past employer

Show fewer