What they do:
Rebuilding data in advertising to protect privacy
Quick facts:
HQ: London, United Kingdom
Top Privacy Startups
This list has 21 startups and was last updated on Oct 15, 2026. 5 of them are hiring right now. Biggest hubs: San Francisco (14) and New York (2). Largest teams: Permutive, Optery, and Reality Defender.
21 startups
Reality Defender
Hiring
What they do:
Enterprise Deepfake Detection
Quick facts:
HQ: New York, NY, United States
Dynamo AI
Hiring
What they do:
Compliant-Ready AI for the Enterprise
Quick facts:
HQ: San Francisco, CA, United States
SpruceID
Hiring
What they do:
SpruceID lets users control their data across the web.
Quick facts:
HQ: New York, NY, United States
What they do:
AI-powered Compliance Platform for PCI 4, CCPA, HIPAA, CIPA, 50+ laws
Quick facts:
Clearly AI
Hiring
What they do:
Automate security and privacy reviews
Quick facts:
HQ: Seattle, WA, United States
Unbound
Hiring
What they do:
Use AI tools without fear of data leakage
Quick facts:
HQ: San Francisco, CA, United States
What they do:
We're a mobile on-device profiling and ad-serving platform initially…
Quick facts:
HQ: San Francisco, CA, United States
What they do:
AI-driven mobile cybersecurity
Quick facts:
HQ: Nicosia, Cyprus
What they do:
Information Security (Cyber Security), Compliance and Privacy (GDPR &…
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Encrypted AI with verifiable privacy
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Internal industrial company data for frontier labs
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Your personal context, securely portable across every AI app.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
We make Privacy Software for SMBs.
Quick facts:
HQ: San Francisco, CA, United States
Optery
Acquired
What they do:
Opt out software that removes your private info from the internet
Quick facts:
HQ: San Francisco, CA, United States
Fabric
Acquired
What they do:
Fabric is a personal location-based journal that catalogs experiences…
Quick facts:
HQ: San Francisco, CA, United States
NuCypher (aka Threshold Network)
Shut down
What they do:
Network for decentralized threshold cryptography and end-to-end…
Quick facts:
HQ: Austin, TX, United States
Preclusio
Shut down
What they do:
We help companies comply with privacy laws like GDPR. Many of these…
Quick facts:
HQ: San Francisco, CA, United States
Blyss
Shut down
What they do:
End-to-end encrypted AI.
Quick facts:
HQ: San Francisco, CA, United States
Vizly
Shut down
What they do:
Data to insights in seconds
Quick facts:
HQ: San Francisco, CA, United States
Documents.Me
Shut down
What they do:
Client-side encryption for your devices and the cloud.
Quick facts:
HQ: San Francisco, CA, United States
YC W12Early stage
Questions and answers
How many startups are on this list?
There are 21 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
5 of them are hiring right now, including Reality Defender, Dynamo AI, and SpruceID.
Which of them have the largest teams?
By team size: Permutive (205 employees), Optery (55 employees), and Reality Defender (54 employees).
Where are they based?
The biggest hubs are San Francisco (14) and New York (2).