CalypsoAI is the older company (2018 vs 2022); HiddenLayer is the larger of the two.
2 signals in the last 90 days
Side-by-Side Comparison
| Metric | CalypsoAI | HiddenLayer |
|---|---|---|
| Founded | ||
| Founded | 2018 older | 2022 |
| Headquarters | ||
| Headquarters | New York, United States | Austin, United States |
| Employees | ||
| Employees | 25 | 150 larger |
| Industry | ||
| Industry | AI, Cyber Security, Information Technology | Cyber Security, Privacy and Security, Machine Learning |
| Funding Stage | ||
| Funding Stage | Series Unknown | Series B |
| Total Funding | ||
| Total Funding | $38.20M | $156.25M |
| Funding Rounds | ||
| Funding Rounds | 4 | 3 |
| Services | ||
| Services | AI Guardrails, Application Delivery, Traffic Management, API Gateway, Unified Management and Automation | AI Security Solutions, Model Protection Services, Adversarial Threat Detection, Security Platform, AI Research & Development |
| Target Customers | ||
| Target Customers | Banking and Financial Services, E-commerce, Healthcare, Public Sector, Manufacturing | Enterprises, Government Organizations, Financial Institutions, Technology Companies, AI-driven Businesses |
| Taxonomy | ||
| Taxonomy | AI Security, Adaptive AI Platform, Enterprise Innovation, Threat Protection, AI Performance Reliability, Machine Learning Security, Adversarial Attack Defense, AI Potential Unlocking, Large Language Models, Partnerships With Enterprises, AI Safety, Silicon Valley Startup, Investment Backing | AI Security, Machine Learning, Threat Modeling, Risk Assessment, Red Team Assessment, Model Scanning, Detection And Response, Adversarial ML Training, Prompt Injection Security, PII Leakage Protection, Model Tampering Protection, Data Poisoning Security, Threat Research, Red Teaming, Enterprise Security |
| Website | ||
| Website | calypsoai.com | hiddenlayer.com |
About CalypsoAI
CalypsoAI, acquired by F5, is a leading adaptive AI security platform that enables enterprises to innovate securely while countering evolving cyber threats. Founded in 2018 in Silicon Valley, the company has quickly emerged as a global authority in leveraging AI for robust security solutions. With...
About HiddenLayer
HiddenLayer is a leading provider of security for AI, offering a platform to help enterprises safeguard their machine learning models. The company prides itself on providing turnkey security solutions without adding unnecessary complexity to models or requiring access to raw data and algorithms. Fou...
We will tell you when either one moves
BounceWatch watches CalypsoAI and HiddenLayer for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at CalypsoAI and HiddenLayer — by email.
Frequently Asked Questions
Compare CalypsoAI with someone else
Start typing a company name or domain.
Related Comparisons
Compiled from the BounceWatch company index. We last looked at CalypsoAI on 30 Mar 2026, and HiddenLayer on 7 Mar 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.