YC Unicorns — the billion-dollar alumni.

Payments infrastructure for the internet.

Book accommodations around the world.

Buy, sell, and manage cryptocurrencies.

Restaurant delivery marketplace.

Self-driving cars.

The front page of the internet.

All-in-one HR, IT, and finance platform.

Live streaming for gamers and creators.

Smart kitchens for delivery-only restaurants.

Data infrastructure for AI.

The largest NFT marketplace.

Corporate cards and finance automation.

Online wholesale marketplace.

Corporate cards and spend management.

Global payroll and compliance.

Grocery delivery and pickup marketplace.

Complete DevOps platform.

Payroll, benefits, and HR for SMBs.

AR games and platform; creator of Pokémon GO.

File hosting and collaboration.

Modern freight forwarding.

License-plate camera network for public safety.

Payments and banking for Indian businesses.

Investing and financial services for India.

R&D cloud for life sciences.

Automated data integration pipelines.

Fusion energy.

Self-driving semi trucks.

10-minute grocery delivery in India.

Modern background checks.

Advanced fission power plants.

Connect apps and automate workflows.

Open-source Firebase alternative.

Livestream shopping marketplace.

Social commerce platform for India.

Coaching and mental fitness platform.

Construction tech and equipment rental.

3D-printed rockets.

Automated security and compliance.

Visual web design and development platform.

Digital freight network.

Omnichannel communications platform.

Banking for startups.

Build internal tools fast.

Customer data infrastructure.

Contract lifecycle management.

Customer communication for local businesses.

People management platform.

Live online classes for kids.

Job marketplace.

Spatial data platform.

Search and discovery API.

Modern insurance brokerage.

Procurement orchestration platform.

Bank payments network.

Global corporate cards and expense management.

Sales intelligence and engagement platform.

Fully reusable rockets.

Payment operations infrastructure.

Carbon-negative specialty chemicals.

AI for contact centers.

Supersonic passenger aircraft.

Customer communication hub.

Mobile money for francophone Africa.

Real-time digital operations.

Small satellites for internet access.

Quantum supercomputing.

Subscription sports media.

AI-powered self-checkout.

AI content generation for marketing teams.

Open-source data integration.

AI-powered identity verification.

GraphQL platform for the supergraph.

Digital mortgage closing platform.

Digital analytics platform.

Marketplace for healthcare workers and facilities.

Personal finance assistant.

Wall-climbing robots for critical infrastructure.

Engineering biology platform.

Space infrastructure services.

Bookkeeping and tax for startups.

Data activation (reverse ETL).

Construction productivity software.

Publishing platform for independent writers.

In-app chat, voice, and video APIs.

Product analytics platform.

Autonomous checkout for retail.

Communication for SMBs.

Online learning for tech skills.

Molecular diagnostics platform.

Talent acquisition suite.

Open-source product analytics suite.

Video infrastructure for developers.

Payments infrastructure for Southeast Asia.

AI language tutor.

All-in-one platform for independent restaurants.

AI-native insurance for the modern era.