Castle Alternatives & Competitors
12 companies similar to Castle — Defend against bots, fraud, and abuse.
Companies similar to Castle
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Verisoul
All-in-one platform that helps businesses automate fake account detection.
Austin, United States
Ravelin Technology
Make smarter decisions on fraud and payments.
London, United Kingdom
ThreatMark
Bringing trust to the digital world by disrupting fraud.
Charlotte, United States
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Arkose Labs
Bot management and account security.
San Mateo, United States
DataDome
We block bots, prevent cyberfraud, and secure every click, login, and transaction—deliveri...
New York, United States
Cleafy
Empowering banks and financial institutions to proactively safeguard customers from online...
Milan, Italy
DataVisor
The most powerful AI fraud and AML detection platform trusted by the world's largest brand...
Mountain View, United Sta...
ThreatMetrix
Empowering the global economy with secure, profitable growth through intelligent identity...
NetGuardians
Together We Fight Financial Crime.
Yverdon, Switzerland
Kasada
Transcending bot management by countering the human minds behind automated threats.
New York, United States
TypingDNA
AI based Authentication and Fraud detection.
Brooklyn, United States
About Castle
Castle, founded in 2015, has positioned itself as a pivotal player in the realms of Big Data, Cyber Security, and Fintech. Based in the United States, the company offers advanced solutions to block bad bots, account takeovers, transaction fraud, and spam, distinguishing itself by eliminating the need for CAPTCHAs. Thei...
fraud defense at the edge, in-app fraud detection with SDK, real-time risk analysis and management, custom security flows and rules engine, API integration for threat insights
enterprises, businesses handling online transactions, platforms vulnerable to bot attacks, companies needing real-time fraud detection, developers integrating security features
Bot Protection, Fraud Prevention, Account Takeover Protection, Transaction Fraud Detection, Spam Blocking, Device Fingerprinting, User Behavior Analysis, Cybersecurity Solutions, User Account Security, API Integration, E-commerce Security, Mobile App Security, Online Business Protection, Real-time Threat Detection, Customer-facing Application Protection
B2B, SaaS, API
Pay As You Go, Usage Based, Subscription
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Compiled from the BounceWatch company index. We last looked at Castle on 27 Mar 2026. The 12 companies listed here were last checked between 11 Sep 2024 and 21 May 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.
