YC Winter 2021 (W21)
335 companies Y Combinator lists for Winter 2021, with what each one builds. 22.9% of the tagged companies are AI, up from 20.7% in S20.
- Companies
- 335
- AI share
- 22.9%
- Top sector
- Engineering, Product and Design
- 32 companies
- Second
- Operations
- 19 companies
What’s in Winter 2021
Winter 2021 lists 335 companies so far (S20 had 209). The biggest themes by YC's tags are Fintech (58), Developer Tools (34), Marketplace (20), E-commerce (19) and Education (14). The largest sectors are Engineering, Product and Design, Operations, Finance and Accounting and Healthcare IT. 44.4% are based outside the US.
- Fintech · 58
- Developer Tools · 34
- Marketplace · 20
- E-commerce · 19
- Education · 14
See what YC asked founders to build · Breakout themes across batches
All Winter 2021 companies
335 companies
- Moxion Power Co.
Mobile Energy Storage Technology
Energy380San Francisco, CA, USAInactive - Zepto
10-Minute Grocery Delivery in India
Food and Beverage1300MH, India - Abacum
The AI-native FP&A platform that helps Finance teams drive business…
Finance and Accounting125New York City, NY, USA - Aerotime
Calendar that kills time fragmentation
Productivity6San Francisco, CA, USAInactive - AgendaPro
Shopify for Beauty and Wellness businesses in Latam
Marketing50Santiago, Santiago Metropolitan Region, Chile - Alba Orbital
We make satellites to image everywhere on Earth, every 15 minutes
Aviation and Space10Glasgow, Scotland, United Kingdom - Albedo
Full-stack VLEO satellite missions
Aviation and Space55Denver, CO, USA - AlineaAI
Automated investing for the next generation 💸
Consumer Finance12New York City, NY, USA - Alltruists
Kid-friendly, at-home volunteer projects in a box, delivered bimonthly
Job and Career Services1Los Angeles, CA, USAInactive - Alokai
Frontend Platform for eCommerce
Engineering, Product and Design100Warsaw, Masovian Voivodeship, Poland - Alpas
Software for procurement departments to find suppliers 10x faster
B2B5Berlin, Berlin, Germany - AnimaAI
The next generation care enablement platform
Healthcare20London, England, United Kingdom - arnataAI
AI workers for the logistics industry.
Supply Chain and Logistics15San Francisco, CA, USA - Arpio
Recover from any outage in 10 minutes or less.
Infrastructure7Durham, NC, USA - Atomic IndustriesAI
Software orchestrated mass production of plastics
Manufacturing and Robotics60Cleveland, OH, USA - Atrato
Enabling consumers split the cost of purchases without a credit card
Payments80Mexico City, CDMX, Mexico - Aurabeat
Providing clean, safe, virus free air for homes, buildings and cars
Energy12Hong Kong, Hong Kong - Auricle
Neurostimulation implant to restore hearing & speech understanding
Medical Devices2San Francisco, CA, USA - Authologic
Stripe for online identity verification
Engineering, Product and Design44Warsaw, Masovian Voivodeship, Poland - authzedAI
Authorization Infrastructure securing AI at OpenAI, Zoom, & more
Engineering, Product and Design31New York City, NY, USA - Avenue
Observability platform for operations teams
Operations8New York City, NY, USAAcquired - Avion School
We teach Filipinos to become remote software engineers globally.
Education4Manila, NCR, PhilippinesInactive - Aviron Interactive
Aviron transforms workouts with game-based exercise machines, making…
Home and Personal90Toronto, ON, Canada - AvocadoAI
AI-Native Restaurant POS
Retail4San Francisco, CA, USA
Source: Y Combinator’s public company directory. Each company links to its YC profile. See how we count and what YC asked founders to build.