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Clean.io

Clean.io

Acquired

Baltimore, United States · Founded 2017

11-50 employees · $12M

Sourced & current · updated Oct 11, 20261 of 4 facts verifiedWebsite unavailable

Clean.io is a Baltimore ad-security company whose technology detects and blocks malicious ads (malvertising) for publishers. HUMAN Security acquired it in November 2022.

Where they sit

Stack tier: Infrastructure & Data (B)

Ad Fraud PreventionVerification Platform

Specialized provider of client-side security solutions for digital publishers and e-commerce platforms

Ownership

Pre-call brief from ATDb — sourced from the live database, current as of Oct 11, 2026. Not a static screenshot.