Companies you'll love to work for

Castle

castle.io

Castle is a digital security company founded in 2016, focused on providing businesses with tools to protect against bots, fraud, and abuse. Their API allows for lightweight integration to block large-scale attacks without the need for CAPTCHAs, leveraging user identity, reputation, and behavior analysis. Castle's platform includes features like device fingerprinting, behavioral analysis, and real-time scoring to detect and prevent account takeovers, fake accounts, and transaction fraud. With backing from notable investors like Y Combinator and Index Ventures, Castle aims to make advanced security accessible for businesses of all sizes, from startups to established enterprises.