Castle vs NetGuardians
NetGuardians is the older company (2015 vs 2007); NetGuardians is the larger of the two.
Side-by-Side Comparison
| Metric | Castle | NetGuardians |
|---|---|---|
| Founded | ||
| Founded | 2015 | 2007 older |
| Headquarters | ||
| Headquarters | Brooklyn, United States | Yverdon, Switzerland |
| Employees | ||
| Employees | 48 | 100 larger |
| Industry | ||
| Industry | Big Data, Cyber Security, Fintech | Big Data, Cyber Security, Financial Services |
| Funding Stage | ||
| Funding Stage | Venture round | Series D |
| Total Funding | ||
| Total Funding | $11.56M | $30.60M |
| Funding Rounds | ||
| Funding Rounds | 5 | 4 |
| Services | ||
| Services | 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 | AI risk models, Fraud detection and prevention, Community intelligence, Real-time transaction monitoring, Payment fraud prevention, Internal fraud prevention, AML compliance solutions |
| Target Customers | ||
| Target Customers | enterprises, businesses handling online transactions, platforms vulnerable to bot attacks, companies needing real-time fraud detection, developers integrating security features | Private banks, Wealth managers, Retail banks, Digital and challenger banks, Financial institutions |
| Taxonomy | ||
| Taxonomy | Bot ProtectionFraud PreventionAccount Takeover ProtectionTransaction Fraud DetectionSpam BlockingDevice Fingerprinting +9 | Fraud PreventionReal-time ProtectionBehavioral AnalysisFinancial CrimeUser Behavior AnalyticsDynamic Profiling +6 |
| Website | ||
| Website | castle.io | netguardians.ch |
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 nee...
About NetGuardians
NetGuardians is a pioneering Swiss FinTech with a clear mission of combating financial crime, encapsulated in its slogan: "Together We Fight Financial Crime." Founded in 2007, the company has established a strong presence across Big Data, Cyber Security, Financial Services, and Fintech industries....
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Compiled from the BounceWatch company index. We last looked at Castle on 27 Mar 2026, and NetGuardians on 26 Sep 2025. 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.
