What they do:
Learning app for school students in Southeast Asia
Quick facts:
HQ: Kuala Lumpur, Malaysia
Y Combinator Summer 2021 Startups
This list has 391 startups and was last updated on Oct 15, 2026. 86 of them are hiring right now. Biggest hubs: San Francisco (100), New York (36), and London (19). Largest teams: LemFi, ShipBlu, and Yummy. Latest round: Onebrief raised $151M (Oct 14, 2026).
391 startupsPage 3 of 11
What they do:
Plaid for Brazil: we allow developers to access users' financial data
Quick facts:
What they do:
SaaS Platform to manage IT and buy business software
Quick facts:
HQ: Chicago, IL, United States
What they do:
Making it easy to sell personalized products online.
Quick facts:
HQ: St. Louis, MO, United States
What they do:
AppX helps social media creators launch their own mobile apps.
Quick facts:
What they do:
Software that helps employees pick their employee benefits.
Quick facts:
HQ: Salt Lake City, UT, United States
What they do:
The #1 Market Network for Government Contractors.
Quick facts:
HQ: San Francisco, CA, United States
testRigor
Hiring
What they do:
Executable specifications in English for test automation
Quick facts:
HQ: San Francisco, CA, United States
MindFi
Hiring
What they do:
Transforming Mental Health for Corporate Asia
Quick facts:
HQ: Singapore
Adaptyv
Hiring
What they do:
We're building fully automated labs for protein engineering
Quick facts:
HQ: Lausanne, Switzerland
Bolster
Hiring
What they do:
The platform for buying, selling and managing residential construction
Quick facts:
Mach9
Hiring
What they do:
AI CAD Software for Civil Engineering
Quick facts:
HQ: San Francisco, CA, United States
What they do:
CRISPR powered Diagnostics with results in minutes.
Quick facts:
HQ: San Diego, CA, United States
Charge Robotics
Hiring
What they do:
Robots that build solar farms
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Turning space into a transportation layer for Earth
Quick facts:
HQ: Los Angeles, CA, United States
Aqua
Hiring
What they do:
The AI-Native Turnkey Alternative Investment Platform (TAIP)
Quick facts:
HQ: New York, NY, United States
What they do:
Secoda is the AI layer for your Analytics
Quick facts:
What they do:
The most magical personal Voice-Led AI English Learning Buddy for Kids
Quick facts:
What they do:
Podium for local businesses in Latam
Quick facts:
What they do:
Automated Meal Planner & Nutrition Tracking
Quick facts:
What they do:
fluke is a full-digital mobile operator in Brazil
Quick facts:
What they do:
Blood Test for Early Detection of Ovarian Cancer
Quick facts:
HQ: Denver, CO, United States
What they do:
Subscription infrastructure & paywall experimentation for mobile apps
Quick facts:
HQ: New York, NY, United States
Replo
Hiring
What they do:
Sell anything
Quick facts:
HQ: San Francisco, CA, United States
Parallel Bio
Hiring
What they do:
Using the immune system to cure disease
Quick facts:
HQ: San Francisco, CA, United States
Neodocs
Hiring
What they do:
Instant lab tests on your smartphone
Quick facts:
HQ: India
What they do:
Tech-powered equipment rentals in Latam.
Quick facts:
OneSchema
Hiring
What they do:
The AI Cowork for big data
Quick facts:
HQ: San Francisco, CA, United States
What they do:
The fastest way to ship airtight AI
Quick facts:
HQ: San Francisco, CA, United States
What they do:
P2P Cross border payments
Quick facts:
HQ: Remote
What they do:
Decarbonizing the fashion industry
Quick facts:
HeyCharge
Hiring
What they do:
Low-cost, high-scale EV charging platform for apartments (and more).
Quick facts:
Slope
Hiring
What they do:
The B2B Payments Platform
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Automating wealth creation for 400M Indian millennials
Quick facts:
What they do:
AirBnB for Small Warehouses
Quick facts:
Scispot
Hiring
What they do:
The Best Data Infrastructure for Biotechs
Quick facts: