CalypsoAI
ClosedDublin, Ireland · Founded 2018 · $38.2M raised
- Headquarters
- Dublin
- Founded
- 2018
- Business Model
- B2B
- Total Funding
- $38.2M
- Last Round
- $23.0M Extension RoundJun 2023
- Rounds
- 3
About
CalypsoAI is an adaptive AI security platform, founded in 2018 by a team with U.S. national security research roots, that helps enterprises protect AI models and agents from evolving threats such as prompt injection and jailbreak attacks. The company opened a Global Co-Headquarters in Dublin, Ireland in 2024 to support its rapid growth. F5 acquired CalypsoAI for $180 million in 2025, and its technology now underpins F5 AI Guardrails.
Summary
CalypsoAI is an Artificial Intelligence company based in Dublin, Ireland, founded in 2018. It has raised $38.2M in total across 3 rounds, most recently a $23.0M Extension Round round in Jun 2023. Investors include Paladin Capital Group, Lockheed Martin Ventures and 8VC.
Funding History
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Jun 2023
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Seed through Extension Round — per-round amounts, valuations, and who invested in each round.
Investors
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