
Whereoscope
What they do:
Location-aware smartphone application that enables parents to keep…
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HQ: San Francisco, CA, United States
This list has 3,698 startups and was last updated on Oct 15, 2026. 827 of them are hiring right now. Biggest hubs: San Francisco (3,173), Los Angeles (197), and San Diego (39). Largest teams: DoorDash, Stripe, and Airbnb. Latest round: Renue Life Sciences raised $250K (Oct 14, 2026).

What they do:
Location-aware smartphone application that enables parents to keep…
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HQ: San Francisco, CA, United States

What they do:
Easy SEM software. Acquired by Twitter in 2011.
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HQ: San Francisco, CA, United States

What they do:
Effortless Video Meetings - Acquired by Jive Software in 2013
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HQ: San Francisco, CA, United States

What they do:
Real estate data visualization. Sold to Trulia Dec…
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HQ: San Francisco, CA, United States

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.…
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HQ: San Francisco, CA, United States

What they do:
DailyBooth lets users follow their friends and update them in real-time through the use of pictures and status updates.
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HQ: San Francisco, CA, United States
What they do:
We let you know where to go and what to get once you get there.…
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HQ: San Francisco, CA, United States
What they do:
FlightCaster predicts flight delays. FlightCaster can predict your probability of delay hours before the airline or any other app notifies you. FlightCaster…
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HQ: San Francisco, CA, United States

What they do:
Divvyshot is a photo-sharing platform that enables users to share full resolution photos with friends.
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HQ: San Francisco, CA, United States

What they do:
Sync and stream your music across any device. Acquired in 2009.
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HQ: San Francisco, CA, United States
What they do:
Acquired by Google in 2011
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HQ: San Francisco, CA, United States

What they do:
Zenter is the gmail of slides
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HQ: San Francisco, CA, United States
What they do:
Auctomatic, a Y Combinator company, offers an auction and marketplace management system for all of those individual sellers on such sites as Ebay, Amazon,…
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HQ: San Francisco, CA, United States

What they do:
Finding wedding vendors is hard. In 2007, a couple started Project Wedding to tackle this problem and eventually grew it into a full-featured wedding planning…
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HQ: Los Angeles, CA, United States

What they do:
Parakey was founded in early 2006 by Blake Ross and Joe Hewitt of Mozilla/Firefox fame. Little has been revealed about what Parakey will actually do, but it…
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HQ: San Francisco, CA, United States

What they do:
Dead simple statistical analysis software. Like R or SPSS but easy to…
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HQ: San Francisco, CA, United States

What they do:
We're building a marketplace for unique travel experiences (it's…
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HQ: San Francisco, CA, United States
What they do:
Easel is a visual design tool built for the web. Since the web is…
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HQ: San Francisco, CA, United States

What they do:
Voice messaging platform - Acquired by Palantir in 2013
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HQ: San Francisco, CA, United States

What they do:
Mass customized active apparel. We are building a full turn key…
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HQ: San Francisco, CA, United States

What they do:
Collaborative Screen Sharing — you each get your own mouse, and…
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HQ: San Francisco, CA, United States

What they do:
Radiology in the cloud. X-rays, CAT scans, MRI's, and…
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HQ: San Francisco, CA, United States

What they do:
Acquired by MakerBot in February 2014. A marketplace for 3D…
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HQ: San Francisco, CA, United States

What they do:
Canonical permalinks for songs.
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HQ: San Francisco, CA, United States
What they do:
Fee-free ticketing, optimized for mobile.
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HQ: San Francisco, CA, United States
What they do:
Lead intelligence as a service. We want to be your personal lead…
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HQ: San Francisco, CA, United States

What they do:
Open-source time-series data analytics extension for PostgreSQL
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HQ: Los Angeles, CA, United States

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Predicted churn for enterprises. (Acquired by Block)
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HQ: San Francisco, CA, United States
What they do:
Communities for expecting and new parents.
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HQ: San Francisco, CA, United States

What they do:
Replaces paper patient lists for doctors.
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HQ: San Francisco, CA, United States

What they do:
Simple payments and tax compliance for your contract workforce.
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HQ: San Francisco, CA, United States
What they do:
Homejoy for massage
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HQ: San Francisco, CA, United States

What they do:
Bizzy is omni-channel marketing for ecommerce businesses.
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HQ: San Francisco, CA, United States

What they do:
Cyberfend delivers robust, real-time web and mobile security by…
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HQ: San Francisco, CA, United States
What they do:
WorkLife is a SaaS application that helps teams have more effective…
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HQ: San Francisco, CA, United States

What they do:
YesGraph recommends exactly who a user should invite to an app. Our…
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HQ: San Francisco, CA, United States