CarbonChain
Hiring
What they do:
We help companies automate the accounting of their carbon emissions
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HQ: London, United Kingdom
Y Combinator Summer 2020 Startups
This list has 209 startups and was last updated on Oct 15, 2026. 51 of them are hiring right now. Biggest hubs: San Francisco (75), New York (31), and London (11). Largest teams: Orange Health Labs, Zip, and MarketForce. Latest round: Supabase raised $150M (Oct 2, 2026).
209 startupsPage 3 of 6
Hypotenuse AI
Hiring
What they do:
AI-native Operating System for Enterprise Ecommerce Companies
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HQ: San Francisco, CA, United States
What they do:
Kernal is creating mRNA 2.0 therapies that work in specific cells
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HQ: Boston, MA, United States
What they do:
The first digital mental health system for youth
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HQ: San Francisco, CA, United States
What they do:
We give employees cash advances for their 401k match and ESPP
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HQ: San Francisco, CA, United States
What they do:
An effective home-use fertility treatment for natural conception
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HQ: Singapore
What they do:
All your tasks and calendars into an AI-powered productivity app
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HQ: Spain
What they do:
API-first banking for ambitious technology companies.
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HQ: Bend, OR, United States
SuperTokens
Hiring
What they do:
Open source alternative to Auth0 / AWS Cognito / Firebase Auth
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HQ: San Francisco, CA, United States
What they do:
Novel is your international business bank account
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HQ: Minneapolis, MN, United States
What they do:
Bits is a credit card designed to help people build credit
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HQ: London, United Kingdom
What they do:
TyltGO powers retailers with same-day delivery.
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What they do:
Gilgamesh Pharmaceuticals, a Clinical stage biotechnology company…
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HQ: New York, NY, United States
Hotplate
Hiring
What they do:
Online ordering platform for independent chefs and bakers.
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HQ: San Francisco, CA, United States
Vena Vitals
Hiring
What they do:
A small sticker that monitors blood pressure continuously
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HQ: Irvine, CA, United States
adyn
Hiring
What they do:
The first test designed to prevent birth control side effects
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HQ: Seattle, WA, United States
What they do:
API for healthcare compliance
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HQ: San Francisco, CA, United States
Matter
Hiring
What they do:
Building the future of reading
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HQ: San Francisco, CA, United States
What they do:
Brex for South East Asia - Corporate cards & automated payments.
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What they do:
Helping healthcare providers reduce administrative costs using AI
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HQ: New York, NY, United States
What they do:
Dollar Shave Club as a platform.
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HQ: Seattle, WA, United States
What they do:
Prevents your emails from landing in spam.
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What they do:
Take control of your data in real-time.
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HQ: San Francisco, CA, United States
Safepay
Hiring
What they do:
Digital payments for businesses in Pakistan
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HQ: San Francisco, CA, United States
What they do:
Next-gen airline OS
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HQ: Raleigh, NC, United States
Dataland
Hiring
What they do:
AI agents for customer support.
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HQ: New York, NY, United States
What they do:
Organizing the world's inventory.
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HQ: San Francisco, CA, United States
What they do:
Accelerate development by simulating production conditions with real…
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HQ: Atlanta, GA, United States
What they do:
Save money and win prizes up to $10m through weekly number draws.
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HQ: New York, NY, United States
What they do:
We use AI to design antibodies for intractable diseases
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HQ: Boston, MA, United States
What they do:
Build a custom SaaS or membership site with Webflow or Wordpress
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HQ: Williamsburg, VA, United States
Rally
Hiring
What they do:
Rally is Zoom for social events
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What they do:
Empowering anyone to build cellular network
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HQ: San Francisco, CA, United States
Hellometer
Hiring
What they do:
Making fast food faster
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HQ: Los Angeles, CA, United States
What they do:
The all-in-one screen recorder.
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HQ: Amsterdam, Netherlands
What they do:
The AI-native business intelligence platform
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