What they do:
The leader in automated data movement
Quick facts:
HQ: San Francisco, CA, United States
Y Combinator Winter 2013 Startups
This list has 46 startups and was last updated on Oct 15, 2026. 7 of them are hiring right now. Biggest hubs: San Francisco (34), New York (4), and Seattle (2). Largest teams: Fivetran, Zenefits, and Heap.
46 startupsPage 1 of 2
InfluxData
Hiring
What they do:
The platform for building and operating time series applications.
Quick facts:
HQ: New York, NY, United States
Goldbelly
Hiring
What they do:
Empowering restaurants and small food makers to ship nationwide.
Quick facts:
HQ: New York, NY, United States
RADAR
Hiring
What they do:
RADAR is building technology to completely transform the in-store…
Quick facts:
HQ: New York, NY, United States
What they do:
The easiest way to create a beautiful, mobile optimized website.
Quick facts:
HQ: Shanghai, China
Padlet
Hiring
What they do:
Papyrus → Parchment → Paper → Padlet
Quick facts:
HQ: San Francisco, CA, United States
SimplyInsured
Hiring
What they do:
We sell health insurance to small businesses 100% online.
Quick facts:
HQ: San Francisco, CA, United States
Wefunder
Hiring
What they do:
We're Robinhood for pre-IPO startups. Everyone can invest $100.
Quick facts:
HQ: San Francisco, CA, United States
Etleap
Hiring
What they do:
Etleap is an ETL solution for creating perfect data pipelines.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Online Auctions for Authentic (Women's) Designer Goods
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Changing divorce for good by making it a way less horrible experience…
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HQ: Seattle, WA, United States
What they do:
Watsi is the first global crowdfunding platform for medical…
Quick facts:
HQ: San Francisco, CA, United States
What they do:
StyleUp brings effortless joy to getting dressed with daily,…
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Online circuit simulator and electronic schematic editor.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Fastest, easiest, and most affordable way for small business owners…
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HQ: San Francisco, CA, United States
What they do:
crowdfunding platform for science
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HQ: Honolulu, HI, United States
What they do:
Lawdingo provides virtual paralegal services to law firms.
Quick facts:
HQ: New York, NY, United States
YC W13Early stage
Heap
Acquired
What they do:
Captures user interactions with no code to generate analytics.
Quick facts:
HQ: Seattle, WA, United States
North
Acquired
What they do:
Wearable computing hardware: biosignal gesture recognition
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Zenefits
Acquired
What they do:
HR for small businesses: onboarding, payroll and benefits.
Quick facts:
HQ: San Francisco, CA, United States
Teespring
Acquired
What they do:
IMPORTANT: The original YC founders are no longer involved with this…
Quick facts:
HQ: San Francisco, CA, United States
BuildZoom
Acquired
What they do:
BuildZoom is a better way to remodel. We connect homeowners to the…
Quick facts:
HQ: San Francisco, CA, United States
Bitnami
Acquired
What they do:
The App Store for Server Software
Quick facts:
HQ: San Francisco, CA, United States
VaycayHero
Acquired
What they do:
VaycayHero is a marketplace of professionally managed vacation…
Quick facts:
HQ: San Francisco, CA, United States
Scuba
Acquired
What they do:
Analytics for impatient people.
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GrepData
Acquired
What they do:
Big Data Analytics
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HQ: San Francisco, CA, United States
Kalibrr
Acquired
What they do:
Kalibrr connects SEAsian talent to your local & global jobs.
Quick facts:
HQ: Makati, Philippines
Semantics3
Acquired
What they do:
Data and AI platform for Ecommerce & Cross-Border Logistics
Quick facts:
HQ: San Francisco, CA, United States
Coin
Acquired
What they do:
A mobile wallet that allows you to pay everywhere credit cards are…
Quick facts:
HQ: San Francisco, CA, United States
Meldium
Acquired
What they do:
Simple password & identity management for teams. Acquired by LogMeIn…
Quick facts:
HQ: San Francisco, CA, United States
Screenhero
Acquired
What they do:
Collaborative Screen Sharing — you each get your own mouse, and…
Quick facts:
HQ: San Francisco, CA, United States
MedXT
Acquired
What they do:
Radiology in the cloud. X-rays, CAT scans, MRI's, and…
Quick facts:
HQ: San Francisco, CA, United States
FlightCar
Shut down
What they do:
FlightCar is the Airbnb of Car Rentals at Airports. We allow people…
Quick facts:
HQ: San Francisco, CA, United States
Airware
Shut down
What they do:
Airware provides end-to-end solutions that enable enterprises to…
Quick facts:
HQ: San Francisco, CA, United States
Medisas
Shut down
What they do:
Medisas builds workflow & collaboration software for hospitals.
Quick facts:
HQ: San Francisco, CA, United States
CrowdMed
Shut down
What they do:
CrowdMed harnesses the wisdom of crowds to solve difficult medical…
Quick facts:
HQ: San Francisco, CA, United States
Questions and answers
How many startups are on this list?
There are 46 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
7 of them are hiring right now, including InfluxData, Goldbelly, and RADAR.
Which of them have the largest teams?
By team size: Fivetran (1,200 employees), Zenefits (500 employees), and Heap (388 employees).
Where are they based?
The biggest hubs are San Francisco (34), New York (4), and Seattle (2).