
The cyber resilience platform built to defeat ransomware
Halcyon is a cybersecurity company building the industry's first dedicated anti-ransomware platform for enterprises. The Halcyon platform uses multiple AI and behavioral engines to proactively prevent ransomware execution, capture encryption keys during attacks to enable automated decryption, and provide rapid data recovery — minimizing business downtime. Beyond the software platform, Halcyon operates a 24/7 ransomware Security Operations Center (SOC) and backs its product with a ransomware warranty. Founded in 2021 by Jon Miller and Ryan Smith, Halcyon is headquartered in Austin, Texas and serves Global 2000 companies across sectors including manufacturing, healthcare, education, and financial services. The company has raised significant funding and reached a $1 billion valuation.
Tech & App Stack is available on paid plans
Upgrade to Silver or higher to reveal the full technology and app stack for any company.
View pricingCreate a free account to see funding visualizations and detailed round data.
Create Free AccountMar 2026
Mar 2026
Nov 2024
Dec 2023
Apr 2023
Create a free account to see which investors have funded this company.
Create Free Account
Quest Software (Nasdaq: QSFT) is a provider of application and information availability software ...
Technology company in Europe

Blue Coat Systems was a network security company providing web filtering and SSL inspection produ...

Social engineering prevention platform managing the human attack surface for enterprises; rebrand...
Palantir Technologies builds data integration and analytics platforms (Gotham and Foundry) for go...
Enterprise identity security platform providing intelligent identity solutions including single s...