CrustdataGet an API key

YC companies in Buenos Aires

18 Y Combinator companies based in Buenos Aires, with team size, growth, open roles and funding.

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

Hiring the mostlast 60 days
1 role
RebillW22
See all 1
Fastest growingteam, 6 months
+19%
WallbitW23
  1. 2Rebill+17%
  2. 3Complif+10%
See all 8
Shrinkingteam, 12 months
−4%
Aleph Solutions (Alephee)S21
  1. 2Emi Labs−1%
See all 2
Raised the mostlast 12 months
$5.4M
RebillW22
See all 1
Companies
18
Active
17
Hiring, last 60 days
1
Open roles, 60 days
1
People on these teams
3,444
Showing 18 of 18 companies
CompanyBatchTeam6 mo12 moOpen rolesTotal raisedLast round
We train AI engineers and connect them with companies.
S20877+1%+2%0$11.8MSeries A$10M, May 2022
The LatAm tech-enabled real estate broker to buy and sell houses.
S19252+9%+7%0$13.4MSeries A$10M, Aug 2022
Amazon-like logistics for e-commerce companies in Latam
W21248+5%+3%0$34MSeries A$1M, Feb 2025
Compliance tools & AI agents for financial entities
W2295+10%+42%YC$2.6MSeed$2.6M, Dec 2022
Helping great teams hire better frontline workers, faster.
W1970+4%−1%0$13MSeries A$11M, Feb 2022
We help automotive aftermarket brands to supply and sell parts online
S2166−3%−4%0$125KUndisclosed round$125K, Jan 2023
Neobank for global remote workers
W2338+19%+31%0$1.6MGrant$60K, Jun 2024
Last-mile delivery for satellites.
S19310%+7%0$150KYC investment$150K, Jan 2021
The next-gen lending platform for the banking system in LATAM.
W2224+9%+9%0$2.6MSeed$2M, Apr 2022
Financial infrastructure for the Americas
W2221+17%+17%1$9.1MSeed$5.4M, Sep 2026
Develop your CI/CD pipelines as code and run them anywhere
W19150%−6%0$30MSeries A$20M, Mar 2022
Cloud Development Environments with one click
W1913−13%−19%YC$18.1MSeries A$15M, Jan 2022
Crypto Exchange and Payment API Gateway
W207−12%−22%0
The UI framework for AI agents and developers to build beautiful apps.
S246+20%−14%0
The global neo-bank for contractors and freelancers
S224−20%−20%0$15MSeed$15M, Nov 2022
Live online courses that turn learners into builders
W211,677  YC$14MSeries A$13.5M, Jul 2021
E-commerce site where you can buy certified used-cars in Latin America
W20Acquired  
Online space for deliberation, policy making and democratic…
W15  

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 Buenos Aires YC companies

How many Buenos Aires YC companies are there?

18 Y Combinator companies are based in Buenos Aires; 17 are active.

Which Buenos Aires YC companies are hiring?

1 companies posted roles in the last 60 days, led by Rebill (1 roles). 4 mark themselves as hiring on YC's directory.

Which Buenos Aires YC companies are growing fastest?

By team growth over 6 months (10+ people): Wallbit (+19%), Rebill (+17%) and Complif (+10%).

Which Buenos Aires YC companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: Rebill ($5.4M).

Browse YC companies

By batch

Show fewer

By industry

Show fewer

By location

Show fewer

By founders' past employer

Show fewer