Rein Security
Rein Agentic AI Security Platform: See Beyond the Prompt
Rein Security was founded in 2024, lists 11–50 employees, and has $25.0M in recorded funding across 1 round.
- Employees
- 11–50
- Founded
- 2024
- Business Model
- B2B
- Website
- reinsec.io
- Total Funding
- $25.0M
- Last Round
- $25.0M Series AOct 2026
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 1 funding round for this company. The full record is or through the API.
About
Rein Security builds an enterprise agent security platform that discovers and secures AI agents, MCP servers, and applications with real execution context. The company focuses on the gap left when security tools police employee ChatGPT use and coding assistants but leave enterprise agents that move money and access sensitive systems unprotected. Rein's approach is security that lives alongside the agent rather than another gateway, proxy, or eBPF layer, giving security teams visibility and control across AI workflows.
Summary
Rein Security is an Artificial Intelligence company, founded in 2024. It lists 11–50 employees. It has raised $25.0M in total across 1 round, most recently a $25.0M Series A round in Oct 2026.
Tech & App Stack
9 technologies & apps tracked
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Funding History
Oct 2026
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