Bizzy
Acquired
What they do:
Bizzy is omni-channel marketing for ecommerce businesses.
Quick facts:
HQ: San Francisco, CA, United States
Y Combinator Winter 2015 Startups
This list has 110 startups and was last updated on Oct 15, 2026. 9 of them are hiring right now. Biggest hubs: San Francisco (59), New York (14), and Los Angeles (5). Largest teams: EquipmentShare, GrubMarket, and Razorpay. Latest round: Numerion Labs raised $19.8M (Mar 19, 2026).
110 startupsPage 3 of 4
CyberFend
Acquired
What they do:
Cyberfend delivers robust, real-time web and mobile security by…
Quick facts:
HQ: San Francisco, CA, United States
WorkLife
Acquired
What they do:
WorkLife is a SaaS application that helps teams have more effective…
Quick facts:
HQ: San Francisco, CA, United States
YesGraph
Acquired
What they do:
YesGraph recommends exactly who a user should invite to an app. Our…
Quick facts:
HQ: San Francisco, CA, United States
Outbound
Acquired
What they do:
Create automated messages -- email, iOS/Android push, SMS and web…
Quick facts:
HQ: San Francisco, CA, United States
Valor Water Analytics
Acquired
What they do:
Valor Water Analytics delivers a SaaS platform to utilities to detect…
Quick facts:
HQ: Seattle, WA, United States
Booktrope
Shut down
What they do:
Booktrope provides a software platform that makes it easy for…
Quick facts:
HQ: Seattle, WA, United States
VetPronto
Shut down
What they do:
On demand veterinary house calls.
Quick facts:
HQ: San Francisco, CA, United States
Pigeonly
Shut down
What they do:
The affordable way to search, find & communicate with an incarcerated…
Quick facts:
HQ: Las Vegas, NV, United States
Underground Cellar
Shut down
What they do:
Upgrading Your Wine Experience
Quick facts:
HQ: San Francisco, CA, United States
Transcriptic
Shut down
What they do:
The robotic cloud laboratory for the life sciences.
Quick facts:
HQ: San Francisco, CA, United States
Nomiku
Shut down
What they do:
Wave our food in front of your Nomiku and have dinner for everyone…
Quick facts:
HQ: San Francisco, CA, United States
ThinAir
Shut down
What they do:
Intelligent data security for teams
Quick facts:
HQ: San Francisco, CA, United States
Direct Match
Shut down
What they do:
Direct Match was a venture-backed startup building the first all-to-all US Treasury trading venue.
Quick facts:
HQ: New York, NY, United States
Standard Cyborg
Shut down
What they do:
Buid, test and deploy perception applications
Quick facts:
HQ: San Francisco, CA, United States
Dealyze
Shut down
What they do:
Dealyze helps national retailers build exceptional customer and…
Quick facts:
HQ: San Francisco, CA, United States
Lully
Shut down
What they do:
Lully is developing an under-the-mattress technology that precisely…
Quick facts:
HQ: San Francisco, CA, United States
Pakible
Shut down
What they do:
We make it insanely easy to design, price, and manufacture custom…
Quick facts:
HQ: San Francisco, CA, United States
Dabble
Shut down
What they do:
A synthetic photo studio for e-commerce
Quick facts:
Priime
Shut down
What they do:
Priime is a company dedicated to advancements in technology around…
Quick facts:
HQ: San Francisco, CA, United States
3dot
Shut down
What they do:
3dot is a think-tank company based in Ljubljana, Slovenia. Our core business is developing ideas, products and services based on newest technologies for our…
Quick facts:
20n
Shut down
What they do:
Using AI to predict biochemistry for manufacturing and therapeutics
Quick facts:
HQ: San Francisco, CA, United States
Cribspot
Shut down
What they do:
Tech-Enabled Real Estate Company (YC W15)
Quick facts:
HQ: Ann Arbor, MI, United States
SparkGift
Shut down
What they do:
SparkGift makes it easy to send stocks and index funds as gifts to…
Quick facts:
HQ: San Francisco, CA, United States
GroupAhead
Shut down
What they do:
Improve communications with your group's own mobile app.
Quick facts:
HQ: San Francisco, CA, United States
Instavest
Shut down
What they do:
Investors can list their trades on Instavest, including the company, share amount and rationale behind the investment. Other users can invest alongside the…
Quick facts:
HQ: San Francisco, CA, United States
Kickpay
Shut down
What they do:
A platform to finance inventory for e-commerce companies.
Quick facts:
HQ: San Francisco, CA, United States
Omniref
Shut down
What they do:
Sticky notes for code. (We're building a community-powered,…
Quick facts:
HQ: San Francisco, CA, United States
Shift Messenger
Shut down
What they do:
Real-time communication solution for retail and restaurant employees.
Quick facts:
HQ: San Francisco, CA, United States
Rare Door
Shut down
What they do:
Empowering brick-and-mortar retailers to sell more and engage shoppers
Quick facts:
HQ: San Francisco, CA, United States
Glassjar
Shut down
What they do:
Clean app for check writing
Quick facts:
HQ: San Francisco, CA, United States
Nextop
Shut down
What they do:
Nextop optimizes the path between your app and backend. Client…
Quick facts:
Spoil
Shut down
What they do:
Spoil is gifting for the Snapchat generation.
Quick facts:
HQ: San Francisco, CA, United States
Wink Health
Shut down
What they do:
The digital sleep clinic
Quick facts:
HQ: San Francisco, CA, United States
Bagaveev Corporation
Shut down
What they do:
Launch small satellites
Quick facts:
HQ: San Francisco, CA, United States
Automate Ads
Shut down
What they do:
On a mission to programmatically automate, optimize, and unify your…
Quick facts:
HQ: San Francisco, CA, United States