YC 278 startups

YC Winter 2021

Every company from Y Combinator's Winter 2021 batch.

Last updated

2026-09-02

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Gigs

The OS for Embedded Telecom

AI-Powered HRIS for high performing teams

SaaSHuman ResourcesB2B

Source better parts by partnering directly with vetted manufacturers

B2BManufacturingSupply Chain

Canada's digital health clinic for men

Consumer Health ServicesTelehealthConsumer

Voice AI for developers.

Artificial Intelligence

The AI-native FP&A platform that helps Finance teams drive business…

Shopify for Beauty and Wellness businesses in Latam

We make satellites to image everywhere on Earth, every 15 minutes

Full-stack VLEO satellite missions

Hard TechSatellitesClimate

Automated investing for the next generation 💸

Artificial IntelligenceEducationFintech

Frontend Platform for eCommerce

Developer ToolsOpen SourceE-commerce

Software for procurement departments to find suppliers 10x faster

Supply ChainProcurement

The next generation care enablement platform

Deep LearningSaaSConsumer Health Services

AI workers for the logistics industry.

Artificial IntelligenceGenerative AIB2B

Recover from any outage in 10 minutes or less.

Cloud Workload ProtectionSaaSB2B

Software orchestrated mass production of plastics

Artificial IntelligenceHard TechManufacturing

Enabling consumers split the cost of purchases without a credit card

FintechPaymentsConsumer Finance

Providing clean, safe, virus free air for homes, buildings and cars

Neurostimulation implant to restore hearing & speech understanding

Hard TechNeurotechnologyHealth Tech

Stripe for online identity verification

Authorization Infrastructure securing AI at OpenAI, Zoom, & more

Artificial IntelligenceDeveloper ToolsSecurity

Observability platform for operations teams

Developer ToolsSaaSData Engineering

Aviron transforms workouts with game-based exercise machines, making…

Sports TechConsumer Health ServicesGaming

AI-Native Restaurant POS

FintechGenerative AIRestaurant Tech

Reinventing lifelong learning for the future of work.

Multi-agent orchestration platform

Artificial IntelligenceDeveloper ToolsB2B

Robotic Process AutomationSaaS

Scheduling and workforce management SaaS for home healthcare providers

SchedulingLogisticsHealthcare

Improving Developer Experience with Streamlined Code Reviews

India’s first and only marriage super app

Affordable insurance for the next billion Indians

FintechMicroinsurance

Cloud AI microscopy automation

Artificial IntelligenceDeep LearningSaaS

Investing app that teaches you how to invest

EducationFintechEdtech

Analytics, built for the trades.

We use robots to build houses.

Robotic Process AutomationRoboticsConstruction

All-in-one HR management platform for SMEs

SaaSHuman ResourcesB2B

At-home oral health testing, coaching & care

Consumer Health ServicesTelemedicine

The multicurrency account and card for Brazilians

Building Chime for India

Automated user acquisition & selling on WhatsApp for businesses

Artificial IntelligenceSaaSE-commerce

Admin automation for healthcare

Mental Health TechHealth Tech

The super app for pets

A Nouns DAO governance client

GovTechCrypto / Web3Infrastructure

The highest-accuracy global weather data from low-cost flat satellites

Hard TechSpace ExplorationSatellites

Ramp for Indian Businesses - UPI Wallets for Employee Expenses

The modern, open source, self-hosted AI customer support platform

B2BCustomer SuccessOpen Source

Mobile app and coaching program that helps employees sleep better

Mental Health TechSleep TechHealth Tech

The unbiased AI and data layer for skin health.

MarketplaceConsumerDigital Health

Open Jobs —

Team 2

Founded 2021

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1 of 4 similar companies is hiring right now · most common: Design

Keep

The open-source AIOps platform

Authentication infrastructure for the modern web.

AuthSaaSDeveloper Infrastructure

PaaS-like experience with the power of Kubernetes, on your cloud

Developer ToolsSaaSB2B

A scalable, cloud-native Perforce and Git alternative

SaaSVirtual RealityEnterprise

Open Jobs —

Team 14

Founded 2022

YC W21 startupsAll cohort members Startups in San Francisco2567 indexed Dev Tools startupsFull category listing "SaaS" startups1005 indexed

YC Winter 2021

Five standout startups, five open roles, every Monday

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