ZowPow
Shut down
What they do:
Wireless toy game controllers for mobile games.
Quick facts:
HQ: San Francisco, CA, United States
Failed Startups
This list has 1,092 startups and was last updated on Oct 15, 2026. Biggest hubs: San Francisco (554), New York (103), and Los Angeles (35). Latest round: Modal raised $750M (Oct 14, 2026).
1,092 startupsPage 20 of 31
AirPair
Shut down
What they do:
Instant access to the world's best software experts via video chat…
Quick facts:
HQ: San Francisco, CA, United States
Bikanta
Shut down
What they do:
Nano-diamonds for cancer detection
Quick facts:
HQ: San Francisco, CA, United States
Doblet
Shut down
What they do:
Doblet solves the phone battery problem. We're building the first…
Quick facts:
HQ: San Francisco, CA, United States
Owners Circle
Shut down
What they do:
Kickstarter for local businesses
Quick facts:
HQ: San Francisco, CA, United States
Fixed
Shut down
What they do:
iPhone app to fight your parking tickets.
Quick facts:
HQ: San Francisco, CA, United States
TAXA Biotechnologies
Shut down
What they do:
We enable cheaper, faster, and better genetic engineering of plants.…
Quick facts:
HQ: San Francisco, CA, United States
VizeraLabs
Shut down
What they do:
Augmented reality through projectors
Quick facts:
HQ: San Francisco, CA, United States
Nightingale
Shut down
What they do:
App for managing care of autistic students
Quick facts:
HQ: San Francisco, CA, United States
In Your Corner
Shut down
What they do:
We've transformed traditional therapy into an experience that is…
Quick facts:
HQ: New York, NY, United States
Cheddar
Shut down
What they do:
The Best Mobile Checking Account
Quick facts:
Roost
Shut down
What they do:
Web push notifications.
Quick facts:
HQ: New York, NY, United States
Shout
Shut down
What they do:
Real-Time Classifieds
Quick facts:
HQ: New York, NY, United States
SalesSift
Shut down
What they do:
Intelligent Lead Sourcing
Quick facts:
HQ: London, United Kingdom
HauteDay
Shut down
What they do:
Gaming Meets Women's Shopping.
Quick facts:
HQ: Carlsbad, CA, United States
Paid
Shut down
What they do:
Autopilot for Accounts Receivable
Quick facts:
HQ: San Francisco, CA, United States
Whirl
Shut down
What they do:
Pay instantly with your fingerprint.
Quick facts:
HQ: San Francisco, CA, United States
Beep
Shut down
What they do:
Cellular networks for IoT.
Quick facts:
HQ: San Francisco, CA, United States
Zenamins
Shut down
What they do:
Personalized health company doing customized vitamin packs on…
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
Serica
Shut down
What they do:
Financial payment and loan services for the Medical Cannabis and…
Quick facts:
HQ: San Francisco, CA, United States