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YC companies founded by ex-Dropbox people

30 Y Combinator companies with a founder who worked at Dropbox before.

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

Hiring the mostlast 60 days
9 roles
BioRenderW18
  1. 2Salient9
  2. 3Ambient.ai3
See all 5
Fastest growingteam, 6 months
+60%
StandoutX26
  1. 2Serif Health+21%
  2. 3Bretton AI+16%
See all 12
Shrinkingteam, 12 months
−3%
SlopeS21
See all 1
Raised the mostlast 12 months
$75M
Bretton AIS23
  1. 2Fly.io$25M
  2. 3Meticulous$15M
See all 6
Companies
30
Active
20
Hiring, last 60 days
5
Open roles, 60 days
24
People on these teams
1,073
Showing 30 of 30 companies
CompanyBatchTeam6 mo12 moOpen rolesTotal raisedLast round
'Figma/Canva for scientists’
W18266+11%+20%9$17MSeries A$15.3M, Apr 2023
AI company transforming enterprise physical security to prevent…
W17157+1%+8%3$72.1MUndisclosed round$20M, Oct 2023
AI-native operations for the banks
S23107+16%+47%1$95.3MSeries B$75M, Feb 2026
AI Servicing for Auto Lenders
W2367+16%+86%9$60.5MSeries A$60M, Jul 2025
We give Black software engineers support they need to advance in tech.
W1660+3%+2%0$100KGrant$100K, Aug 2016
Run full stack apps close to your users.
W2056+8%+4%0$136MSeries D$25M, Jul 2026
The B2B Payments Platform
S2137−3%−3%2$252MDebt$15M, Jul 2024
Homeownership reimagined for the 21st century.
W2031+11%+15%YC$13.5MSeries A$8M, Nov 2022
Healthcare Price Transparency APIs and Data Products
W2229+21%+81%YC$10.2MPrivate equity$5.6M, Aug 2026
Automated e2e screenshot testing without writing or maintaining tests
S2128+8%+87%YC$19.1MSeries A$15M, Jul 2026
Risotto auto-solves IT support requests using AI
W2419+6%+111%0$10.5MSeed$10M, Jan 2026
Voice data for AI
X2518+13%+260%YC$3.5MSeed$3M, Nov 2025
Agentic hiring marketplace
X2616+60% YC$500KYC investment$500K, May 2026
Code review as a service - combining automation with a network of…
S17Acquired110%0%0$12.7MSeries A$10.4M, Apr 2018
Human whole body end-of-life preservation for later revival.
W188  0$120KUndisclosed round$120K, Jan 2021
Revolutionizing digital selling within HVAC
S21Inactive70%−36%0$2.4MPre-seed$2.3M, Nov 2021
AI Property Manager for Airbnb & Short-Term Rental Hosts
S246  YCPre-seed (before YC)May 2024
Accelerate Product Iteration
F253  0$500KYC investment$500K, Dec 2025
Self-improving content bank for marketing
W24Acquired3−40%−40%0$500KYC investment$500K, Apr 2024
AI Voice and SMS Agents for Healthcare
S233 −40%0$500KYC investment$500K, Sep 2023
A podcast company.
W17Acquired3  0SeedMar 2017
Same day local delivery, via API. Currently operating in SF.
W14Acquired3  0Undisclosed roundDec 2014
Automating regulatory submissions for life sciences
F252  0$500KYC investment$500K, Nov 2025
Fast, up-to-date answers for Sales & Support
S20Acquired2  0$1.2MSeed$1.2M, Aug 2020
AI powered web & mobile automation
S22Inactive1  0Pre-seedAug 2022
Glisten AI automatically categorizes and tags e-commerce product data.
W20Inactive1  0$150KYC investment$150K, Mar 2020
Delightful team-building events for remote companies
W20Inactive1  0$150KYC investment$150K, Mar 2020
Your startup's all-in-one recruiting solution
S19128  YC$22.8MSeries A$20M, Jul 2021
Roma is the to-do list that does itself
F26  0
We help SaaS companies deploy into their customer's environment.
S20Inactive  0SeedJan 2020

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-Dropbox founded YC companies

How many ex-Dropbox founded YC companies are there?

30 Y Combinator companies have a founder who worked at Dropbox; 20 are active.

Which ex-Dropbox founded YC companies are hiring?

5 companies posted roles in the last 60 days, led by BioRender (9 roles), Salient (9 roles) and Ambient.ai (3 roles). 12 mark themselves as hiring on YC's directory.

Which ex-Dropbox founded YC companies are growing fastest?

By team growth over 6 months (10+ people): Standout (+60%), Serif Health (+21%) and Bretton AI (+16%).

Which ex-Dropbox founded YC companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: Bretton AI ($75M), Fly.io ($25M) and Meticulous ($15M).

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