Home· YC AI· Winter 2021
Y COMBINATOR · W2021

YC Winter 2021 AI Companies

Every AI company in Y Combinator's Winter 2021 batch — 52 startups, 45 still active, 7 acquired. Team sizes, verticals, and locations.

Companies
52
Active
45
Acquired
7
Headcount
2,250
Dossiers
14
Verticals in this batch 69 tracked
b2b18 saas16 developer tools7 fintech5 logistics3 ai assistant3 generative ai3 e commerce3
All 52 companies largest first
Tractian
Physical AI for asset-heavy industries
W2021 Est. 2019 530 people Atlanta DOSSIER
Cyble
Cyble - World’s First Intelligence-Driven, AI-Native Security…
W2021 Est. 2019 200 people San Francisco DOSSIER
Gigs
The OS for Embedded Telecom
W2021 Est. 2020 150 people San Francisco DOSSIER
Encord
The data layer for physical AI
W2021 Est. 2021 150 people London DOSSIER
Pibit.ai
The fastest path from submission to better decisions.
W2021 Est. 2020 116 people San Francisco DOSSIER
Fathom
The most flexible AI meeting notetaker ever built.
W2021 Est. 2020 95 people San Francisco DOSSIER
Rinsed
Software to run car washes moving to a monthly subscription model
W2021 Est. 2019 80 people New York DOSSIER
Atomic Industries
Software orchestrated mass production of plastics
W2021 Est. 2021 60 people Detroit DOSSIER
Mindee
AI Document Understanding API
W2021 Est. 2018 60 people Paris DOSSIER
Treinta
Software and AI tools for SMBs in the US and Latin America
W2021 Est. 2020 60 people Bogotá DOSSIER
Popl
Your Complete In-Person GTM Platform
W2021 Est. 2020 60 people New York DOSSIER
Flux Auto
General Autonomy for Controlled Spaces
W2021 Est. 2017 56 people Bengaluru DOSSIER
LiveFlow
The Unified AI-ERP & FP&A Platform
W2021 Est. 2021 51 people New York DOSSIER
Vapi
Voice AI for developers.
W2021 Est. 2020 50 people San Francisco DOSSIER
Humaans
AI-Powered HRIS for high performing teams
W2021 Est. 2020 48 people London
AXAR AI
Multi-agent orchestration platform
W2021 Est. 2021 41 people Mountain View
Tint
Makes it easy for tech platforms to embed insurance into products
W2021 Est. 2018 40 people San Francisco
cloud humans
AI-powered customer service for startups
W2021 Est. 2020 30 people New York City
RocketSDR
AI Native Sales Outreach Platform
W2021 Est. 2020 30 people Bengaluru
Reclaim Protocol
User data verification across Employment, Academic Creds, Retail…
W2021 Est. 2021 26 people Hyderabad
Spline
Design and collaborate in multiple dimensions.
W2021 Est. 2020 25 people 12350 Pinecrest Rd
BusinessOnBot
Automated user acquisition & selling on WhatsApp for businesses
W2021 Est. 2020 25 people Bengaluru
Datrics
Generative AI Healthcare Coding Automation
W2021 Est. 2020 22 people San Francisco
InpharmD
We provide a curated, evidence- based answer to any clinical question.
W2021 Est. 2018 16 people Atlanta
Lamar Health
Take Care of Shitty Paperwork for Expensive Drugs
W2021 Est. 2022 15 people San Mateo
Sivo
Debt as a service for companies to lend money to their users at scale.
W2021 Est. 2020 15 people San Francisco
arnata
AI workers for the logistics industry.
W2021 15 people San Francisco
Enable Us
Digital Sales Rooms (Acquired by MindTickle)
W2021 Est. 2020 14 people San Francisco ACQUIRED
Waydev AI
Waydev: AI Adoption, AI Impact, and AI ROI for engineering teams
W2021 Est. 2017 13 people Menlo Park
Alinea
Automated investing for the next generation 💸
W2021 Est. 2021 12 people New York
Mystic
Low latency API to run and deploy ML models
W2021 Est. 2019 11 people San Francisco
TaoFi
The financial layer for decentralized AI
W2021 Est. 2020 11 people San Francisco ACQUIRED
Pragmatic Leaders (Ankai Inc)
AI-powered Corporate Training: Faster, Smarter, and More Effective
W2021 Est. 2020 10 people Gurugram
Journey
No code platform for sales to tell better stories and win more deals.
W2021 Est. 2021 10 people ACQUIRED
Expent Inc
Procure the right software 5x faster
W2021 Est. 2020 10 people Fremont
Emerge Tools
Supercharge your mobile apps
W2021 Est. 2020 9 people Santa Monica ACQUIRED
Rejoy Health
AI-powered healthcare information
W2021 Est. 2021 8 people Palo Alto
Routine
AI-native all-in-one workspace for startups
W2021 Est. 2020 8 people Paris
Biodock
Cloud AI microscopy automation
W2021 Est. 2020 8 people Austin
Fountain9
Helping food brands and retailers reduce food wastage
W2021 Est. 2020 8 people San Francisco ACQUIRED
unSurvey
AI-led market research interviews, no scheduling, instant insights.
W2021 Est. 2021 8 people San Francisco ACQUIRED
Quadrant Health
Analyzing EHR and messaging data to predict disease before it occurs.
W2021 Est. 2021 7 people New York
Compose.ai
Cut your writing time by 40% with AI-powered autocomplete
W2021 Est. 2020 7 people San Francisco
Version Story
GitHub for lawyers
W2021 Est. 2021 6 people New York
Venu AI
Meet qualified leads in person by automating conference production
W2021 Est. 2016 5 people San Jose
FirstSupport.ai
AI Assistant for Customer Support
W2021 Est. 2021 4 people Bandung
True3D Labs
AI that expands any video to fit any screen.
W2021 Est. 2020 4 people New York
Avocado
AI-Native Restaurant POS
W2021 Est. 2020 4 people San Francisco
Friz
AI Social Media Manager
W2021 Est. 2020 4 people Singapore ACQUIRED
Parsagon
AI to track and analyze public policy
W2021 Est. 2020 2 people San Francisco
Supadock
AI workers for logistics operations
W2021 Est. 2020 1 people San Francisco
Ollama
Get up and running with large language models.
W2021 Palo Alto
Every batch 38 tracked
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