Unit 221B focuses on combating the growing threat of mostly English-speaking teenage and young-adult hackers responsible for high-profile breaches and ransomware attacks. Its flagship product, eWitness, is an invite-only threat-intelligence platform that aggregates data from police, journalists, and security researchers to help investigators identify, track, and preserve evidence on malicious actors. The company’s diverse team of hackers, engineers, and forensic specialists has already assisted in securing key arrests tied to groups such as Scattered Spider and The Com, as well as helping victims recover legal wins and financial losses. Fortune 500 companies also use eWitness to understand how frequently their brands or sectors are targeted. With fresh funding, Unit 221B plans to expand the platform’s reach and capabilities to accelerate threat attribution and disruption. CEO May Chen-Contino says the firm is “hyper focused” on stopping high-harm online threats emerging from youth hackers. Although no revenue or user figures were disclosed, the company’s traction with both private enterprises and law enforcement underscores its market relevance.

Total raised

$5M

Funding rounds

1

Latest round

Seed

Latest activity

Sep 2025