Alternatives to Castle

Arkose Labs provides AI security solutions to protect against bot attacks and fraud.

Reduced Real-Time Bidding (RTB) infrastructure costs by filtering low-value impressions using machine learning.

Verifies digital interactions to distinguish humans from bots and AI, protecting against fraud and abuse.

Talon Cyber Security developed a secure enterprise browser for distributed workforces, acquired by Palo Alto Networks.

ShieldSquare provides a bot mitigation and management solution to protect online businesses from automated threats and fraud.

Behavioral biometrics platform that analyzes human-device interaction patterns to detect fraud and authenticate users.

Kasada protects websites, mobile apps, and APIs from automated attacks with real-time threat detection.

Cybersecurity platform for third-party risk management and supply chain security.

Combats phishing and fraud at scale with an agentic AI platform.

Cybersecurity solutions provider focused on vulnerability management, detection, and response.

Server-side bot and agent management platform that identifies humans, good bots, bad bots, and AI agents before traffic lands.

Security startup using AI and VoIP to combat fraud and identity theft.

QIZ Security helps organizations manage cryptographic risk by providing visibility, automation, context, and actionable insights into their cryptographic layer, ensuring adaptability to emerging security demands.

Pistachio is an AI-powered human risk management cybersecurity platform for SMBs, offering automated, personalized security awareness training and phishing attack simulations.

Mobile app security and API protection platform for preventing fraud and abuse.

Pando Cyber Security provides a unified platform for enterprise cybersecurity risk management and compliance.

Financial fraud prevention platform combating authorized push payment fraud for banks.

SentinelOne delivers autonomous cybersecurity through its AI-powered Singularity Platform, protecting endpoints, cloud workloads, and identities.

Surf AI is an agentic operations platform that helps enterprises operationalize security programs with AI to continuously identify and remediate security exposures.

Cyber asset attack surface management and SaaS management platform for IT and security teams.