Pixm

Pixm is a New York-based anti-phishing company that uses computer vision, rather than URL reputation or blocklists, to detect phishing pages in real time. Its browser extension applies convolutional neural network models trained on the visual branding of hundreds of commonly impersonated services (Gmail, Outlook, and various financial institutions among them) to recognize a fake login page by what it looks like, even when the underlying URL or infrastructure is brand new and has no reputation history yet.

Founded in 2015, Pixm raised a $4.3M seed round in February 2022 led by Gula Tech Adventures, a venture firm founded by former NSA hacker Ron Gula that focuses specifically on cybersecurity startups, with participation from FirstIn, Chaac Ventures, and Precursor Ventures. Total disclosed funding stands at roughly $5.9M as of mid-2026, positioning Pixm as a small, early-stage company rather than a well-capitalized one.

Pixm’s core differentiation — detecting phishing by visual similarity rather than by domain age, reputation, or known-bad indicators — is a genuine technical answer to zero-day phishing pages that evade traditional blocklist-based tools. That said, the company’s modest funding and lack of disclosed follow-on rounds since 2022 mean it operates at a much smaller scale than larger email/web security vendors, and no independent, third-party-validated detection-rate benchmark for its computer-vision approach was found in public sources.