What they do:
OwnLocal automates marketing for over 129,000 SMBs through 3,300…
Quick facts:
HQ: Austin, TX, United States
Y Combinator Winter 2010 Startups
This list has 27 startups and was last updated on Oct 15, 2026. Largest teams: Optimizely, Cardpool, and 500Friends.
27 startups
Optimizely
Acquired
What they do:
The first all-in-one operating system for marketing
Quick facts:
HQ: San Francisco, CA, United States
Cardpool
Acquired
What they do:
Cardpool is a gift card exchange marketplace where anybody can buy, sell, or trade their new or pre-owned gift cards. Customers can buy gift cards up to 30%…
Quick facts:
HQ: San Francisco, CA, United States
500Friends
Acquired
What they do:
the best loyalty and retention marketing partner for CMOs.
Quick facts:
HQ: San Francisco, CA, United States
All Screen
Acquired
What they do:
Connecting users with engaging video content across the web.…
Quick facts:
HQ: Los Angeles, CA, United States
Zencoder
Acquired
What they do:
Video Encoding API, Open source video player (video.js)
Quick facts:
HQ: San Francisco, CA, United States
Cue
Acquired
What they do:
Cue (formerly Greplin) is a free service that helps people make the most of their day. Cue intelligently ties together and surfaces useful information at the…
Quick facts:
HQ: San Francisco, CA, United States
Bitplay
Acquired
What they do:
Effortless Video Meetings - Acquired by Jive Software in 2013
Quick facts:
HQ: San Francisco, CA, United States
Embedly
Acquired
What they do:
Embedly provides a platform and suite of tools to make embedding and previewing links simple. Embedly helps publishers and consumers manage embed codes from…
Quick facts:
HQ: Boston, MA, United States
Movity
Acquired
What they do:
Real estate data visualization. Sold to Trulia Dec…
Quick facts:
HQ: San Francisco, CA, United States
Etacts
Acquired
What they do:
Etacts was born from the frustration of keeping in touch with our ever-growing list of friends (both business and personal), family, coworkers, and clients.…
Quick facts:
HQ: San Francisco, CA, United States
Mertado
Acquired
What they do:
Mertado Mertado is an online social shopping platform that allows consumers to discover and buy products from communities they frequently visit.
Quick facts:
HQ: San Francisco, CA, United States
Crocodoc
Acquired
What they do:
Embed PDFs, PowerPoints, and other documents into web and mobile apps
Quick facts:
HQ: San Francisco, CA, United States
YC W10Early stage
Creative Market
Acquired
What they do:
Marketplace for graphic design assets
Quick facts:
HQ: San Francisco, CA, United States
YC W10Early stage
Nowmov
Acquired
What they do:
Nowmov is an endless stream of videos recommended to users based on their interests, friends and what's trending around the world.
Quick facts:
HQ: San Francisco, CA, United States
YC W10Early stage
Answerly
Shut down
What they do:
There is no better way to engage with potential customers than by answering their questions. InboxQ makes it easy to find people who have questions about your…
Quick facts:
HQ: San Francisco, CA, United States
Fabricly
Shut down
What they do:
Fabricly is an online marketplace that takes the risk out of sourcing apparel manufacturers and materials. It is used by a growing number of brands,…
Quick facts:
HQ: New York, NY, United States
LaunchHear
Shut down
What they do:
LaunchHear was a startup attempting to make PR scale in the same way…
Quick facts:
HQ: San Francisco, CA, United States
Zenedy
Shut down
What they do:
Zenedy Zenedy was started as a means to showcase information about obscure topics from around the web.
Quick facts:
HQ: San Francisco, CA, United States
Gamador
Shut down
What they do:
Gamador is a social game developer that has released three games so far. The company says that it differentiates itself from other developers by releasing…
Quick facts:
HQ: San Francisco, CA, United States
Data Marketplace
Shut down
What they do:
Data Marketplace helps people find, buy and sell data online. It helps users seeking a specific data to creating a request for free, explain their needs, add…
Quick facts:
HQ: San Francisco, CA, United States
Newslabs
Shut down
What they do:
NewsLabs offers a platform that looks to help "old school" journalists adapt to the web, by giving them help with advertising, SEO, and other issues they may…
Quick facts:
HQ: Dublin, Ireland
Newcope
Shut down
What they do:
Virtual goods commerce
Quick facts:
HQ: San Francisco, CA, United States
Infoharmoni
Shut down
What they do:
Inforharmoni is a data visualization company that visualizes real-time social web and aggregates content.
Quick facts:
HQ: San Francisco, CA, United States
Notifo
Shut down
What they do:
Notifo is a mobile application and platform which allows any web site or service to easily create mobile notifications. While it's currently only an iPhone…
Quick facts:
HQ: San Francisco, CA, United States
Fithub
Shut down
Quick facts:
YC W10Early stage
Mixed Media Labs
Shut down
Quick facts:
YC W10Early stage
Questions and answers
How many startups are on this list?
There are 27 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
None of them shows open roles right now.
Which of them have the largest teams?
By team size: Optimizely (1,500 employees), Cardpool (251 employees), and 500Friends (51 employees).