Unit 221B
Unit 221B

Unit 221B

Measured by AhrefsDR43Ahrefs DR: 43/100. Below median. Measured by Ahrefs. Median 44.Measured by StartupHub.aiAgent48Agent Readiness: 48/100. Above median. Measured by StartupHub.ai. Median 41.Measured by Google PageSpeedSpeed68Site Speed: 68/100. Above median. Measured by Google PageSpeed. Median 62.Measured by StartupHub.aiTrust78Data Trust: 78/100. Above median. Measured by StartupHub.ai. Median 61.

AI research lab focused on developing advanced AI systems and foundational models.

2023Active21San Francisco, United States

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.

Competitors & Alternatives (9)

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Key facts

Website
unit221b.com
Headquarters
San Francisco, United States
Founded
2023
Employees
21
Total funding
$5M (Seed)

Funding rounds

Funding rounds raised by Unit 221B
DateRoundAmountLead investors
22 Sept 2025Seed$5MSecurity Ventures

Tech stack

Detected on unit221b.com, last scanned 26 Oct 2026.

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