Protect AI
AcquiredProtect AI is an artificial intelligence company in Seattle, United States, founded in 2022. It has raised $108.5M across 3 rounds, most recently a $60.0M Series B in August 2024.
The platform for AI security
- Headquarters
- Seattle, Washington
- Employees
- 51–200
- Founded
- 2022
- Business Model
- B2B
- Website
- protectai.com
- Total Funding
- $108.5M
- Last Round
- $60.0M Series BAug 2024
- Rounds
- 3
- Acquisition Date
- Apr 2025
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 3 funding rounds and 9 investors for this company. The full record is or through the API.
About
Protect AI was a cybersecurity company providing the broadest and most comprehensive platform for securing AI and machine learning systems. Its suite of products — Guardian (AI model security), Recon (automated red teaming for AI), and Layer (runtime security) — operated on a single unified platform to secure AI applications from model selection and testing through deployment and runtime monitoring. Protect AI also maintained open-source projects including ModelScan and LLM Guard, and operated Huntr, the world's first bug bounty platform focused on AI/ML vulnerabilities. The company was acquired by Palo Alto Networks in July 2025.
Summary
It lists 51–200 employees. It has raised $108.5M in total across 3 rounds, most recently a $60.0M Series B round in Aug 2024. Investors include Boldstart Ventures, Evolution Equity Partners and Acrew Capital.
Tech & App Stack
6 technologies & apps tracked
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Funding & Exit History
Apr 2025
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Funding: Seed through Series B. Amounts, valuations, and investors where available.
Investors
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