
Unit 221B
AI research lab focused on developing advanced AI systems and foundational models.
About
Unit 221B is a threat disruption company providing actionable intelligence and cybersecurity solutions. They specialize in dismantling criminal ecosystems and supporting high-stakes investigations for enterprises, law enforcement, and government agencies. Their services include threat intelligence, red teaming, purple teaming, incident response, and ransomware recovery.
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Key facts
- Website
- unit221b.com
- Headquarters
- San Francisco, United States
- Founded
- 2023
- Employees
- 21
- Total funding
- $5M (Seed)
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 22 Sept 2025 | Seed | $5M | Security Ventures |
Tech stack
Detected on unit221b.com, last scanned 26 Oct 2026. Run your own scan
- SEO
- Bitly
- Support
- HubSpot
- CMS / Builders
- Framer
- Email provider
- Google Workspace
Unit 221B scores 43. Does yours?
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Frequently asked
Is Unit 221B trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Unit 221B is 78 out of 100, a generally safe rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
How much funding has Unit 221B raised?
Unit 221B has raised a total of $5M in funding. The most recent round on record is Seed.
How many employees does Unit 221B have?
Unit 221B has approximately 21 people on record.
Public record
SEC filings, insider activity, nonprofit links and pay benchmarks for Unit 221B


