# Rein Security

Company record · Presspool · https://presspool.ai/companies/reinsec-io

Rein is the security layer for enterprise AI, the first runtime security platform controlling every action enterprise AI apps and agents take. Website: https://reinsec.io

## Funding

Latest announced financing: $25 million, Series A, led by Glilot Capital and Sienna Venture Capital, announced October 8, 2026.
- Listed in the [AI startup funding roster for October 5–10, 2026](https://presspool.ai/ai-startup-funding/week-of-2026-10-05).

## Whether AI names Rein Security

- Machine Relations Index: Not cited in any Machine Relations Index answer, May 10, 2026 to October 10, 2026.

A company counts when an AI answer names it or cites its website. Answers vary from run to run, so each count is a dated sample.

## Sources

- [Rein Security blog](https://reinsec.io/blog/series-a/)
- [FinSMEs](https://www.finsmes.com/2026/10/rein-security-raises-25m-in-series-a-funding.html)

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