PagerDuty
Public
What they do:
Real-time visibility into critical apps and services all in one place.
Quick facts:
HQ: San Francisco, CA, United States
Y Combinator Summer 2010 Startups
This list has 36 startups and was last updated on Oct 15, 2026. Biggest hubs: San Francisco (25), New York (3), and Seattle (2). Largest teams: PagerDuty, inDinero, and Docker.
36 startups
Presto
Public
What they do:
Digital meets physical for big chain restaurants
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Financial dashboard for businesses.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Software development platform.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
SEO & Content Marketing Intelligence
Quick facts:
HQ: Columbus, OH, United States
What they do:
The retreat where curious programmers recharge and grow
Quick facts:
HQ: New York, NY, United States
What they do:
WorkFlowy is a better way to manage information. It provides a simple…
Quick facts:
HQ: New York, NY, United States
What they do:
One app for stress-free shopping, cooking, and meal planning.
Quick facts:
HQ: Missoula, MT, United States
FutureAdvisor
Acquired
What they do:
The online financial management service for everyone.
Quick facts:
HQ: San Francisco, CA, United States
Homejoy
Acquired
What they do:
platform for home service professionals
Quick facts:
HQ: San Francisco, CA, United States
Hipmunk
Acquired
What they do:
Hipmunk takes the agony out of searching for flights, accommodations,…
Quick facts:
HQ: San Francisco, CA, United States
Chartio
Acquired
What they do:
Chartio is changing how companies work by building the best…
Quick facts:
HQ: San Francisco, CA, United States
AeroFS
Acquired
What they do:
Secure Enterprise Collaboration.
Quick facts:
HQ: San Francisco, CA, United States
Leftronic
Acquired
What they do:
Business dashboards
Quick facts:
HQ: San Francisco, CA, United States
Rapportive
Acquired
What they do:
Add profiles to email.
Quick facts:
HQ: San Francisco, CA, United States
Simperium
Acquired
What they do:
Simplenote (simplenote.com) and the Simperium platform for syncing…
Quick facts:
HQ: San Francisco, CA, United States
PadMapper
Acquired
What they do:
Map-based apartment search.
Quick facts:
HQ: San Francisco, CA, United States
1000Memories
Acquired
What they do:
Memorial sites.
Quick facts:
HQ: San Francisco, CA, United States
GazeHawk
Acquired
What they do:
Eyetracking using webcams.
Quick facts:
HQ: San Francisco, CA, United States
Fanvibe
Acquired
What they do:
Check-in to games to chat and trash-talk with friends who are also watching. Get scores and breaking news sent straight to your iPhone. Fanvibe covers the…
Quick facts:
HQ: San Francisco, CA, United States
Fridge
Acquired
What they do:
Disposable social networks.
Quick facts:
HQ: San Francisco, CA, United States
Tapzilla
Acquired
What they do:
Woot for iOS apps.
Quick facts:
HQ: Seattle, WA, United States
Whereoscope
Acquired
What they do:
Location-aware smartphone application that enables parents to keep…
Quick facts:
HQ: San Francisco, CA, United States
AdGrok
Acquired
What they do:
Easy SEM software. Acquired by Twitter in 2011.
Quick facts:
HQ: San Francisco, CA, United States
Ready For Zero
Shut down
What they do:
Personal debt and credit management. Acquired by Avant in 2015.
Quick facts:
HQ: Los Angeles, CA, United States
Teevox
Shut down
What they do:
Teevox
Quick facts:
HQ: San Francisco, CA, United States
Chirply
Shut down
What they do:
Crowdsourced design marketplace for paper goods.
Quick facts:
HQ: San Francisco, CA, United States
Habit Labs
Shut down
What they do:
Friends motivate one another: I'll do x if you do y.
Quick facts:
HQ: Seattle, WA, United States
Upbeat
Shut down
What they do:
Upbeat: Building the next generation of Public Relations (PR)
Quick facts:
HQ: San Francisco, CA, United States
Opzi
Shut down
What they do:
Q&A for businesses.
Quick facts:
HQ: San Francisco, CA, United States
Koduco
Shut down
What they do:
iPad games.
Quick facts:
HQ: San Francisco, CA, United States
MessageParty
Shut down
What they do:
Local chat.
Quick facts:
HQ: New York, NY, United States
Brushes
Shut down
What they do:
iPad drawing software.
Quick facts:
YC S10Early stage
Gantto
Shut down
What they do:
Better Microsoft Project.
Quick facts:
HQ: San Francisco, CA, United States
YC S10Early stage
Post.fm
Shut down
What they do:
New email inbox.
Quick facts:
HQ: London, United Kingdom
Pribbit
Shut down
What they do:
Like Twitter but you post others' status.
Quick facts:
HQ: Los Angeles, CA, United States
YC S10Early stage
Questions and answers
How many startups are on this list?
There are 36 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: PagerDuty (950 employees), inDinero (250 employees), and Docker (201 employees).
Where are they based?
The biggest hubs are San Francisco (25), New York (3), and Seattle (2).