Last updated 2026-07-20
- Raised $8M Seed round led by Glilot Capital Partners, Dec 2025
Total raised
$8.0M
Last: Undisclosed Round 2026-01
Stage
Seed
Founded
2024
Headcount
5
HQ
Tel Aviv-Yafo, Israel
Sector
Cyber Security
About
Rein Security is an Israeli cybersecurity startup focused on application security (AppSec) and AI security. The company's platform offers real-time context and protection within application production environments, aiming to address critical blind spots in traditional security approaches. Rein Security's technology helps organizations understand how their applications behave in production, identify validated risks, and prioritize remediation efforts more effectively, particularly for API security, SCA reachability, and agentic AI applications.
Funding history · 1 round · $8.0M total
2025-12
Seed
$8.0M
★ Glilot Capital PartnersAmir JerbiOfer Ben-Noon
Headcount over time
From 4 (2025-10) to 26 (2026-03) · +22 (+550%) · 3 points · source: Finder history + radar grounding
Q&A
- What is Rein Security's primary business?
- Rein Security provides an agentless application security platform that offers real-time visibility into how applications run in production, helping CISOs and AppSec teams identify and remediate validated risks across API security, SCA reachability, detection and response, and AI/MCP protection.
- When was Rein Security founded?
- Rein Security was founded in June 2024.
- Where is Rein Security headquartered?
- Rein Security is co-headquartered in Tel Aviv-Yafo, Israel, and New York, United States.
- How much funding has Rein Security raised to date?
- Rein Security has raised a total of $8,000,000 USD.
- Who led Rein Security's most recent funding round?
- Rein Security's most recent funding round, which occurred in January 2026, was led by Glilot Capital Partners.
- What is Rein Security's current employee count?
- Rein Security has 1-10 employees.
- Who are the co-founders of Rein Security?
- The co-founders of Rein Security are Matan Bar Efrat, who serves as CEO, and Netanel Rubin, who serves as CTO.
- Which sector does Rein Security operate in?
- Rein Security operates in the Cyber Security sector, specifically focusing on Application & Website Security.
Team · 2
Matan Bar-Efrat
Founder · CEO and Co-founder
Netanel Rubin
Founder · CTO and Co-founder
Sectors & technology
Primary sector
Cyber Security
Sub-sectors
Cyber SecurityApplication & Website Security
Target customers
Financial ServicesEnterprise & Professional ServicesHuman Resource & Employment ServicesEnterprisesGovernment & City
Business model
B2B
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | reinsec.io |
|---|---|
| linkedin.com/company/103598882 |
Identifiers & details
| Founded | 2024 |
|---|---|
| Employees (exact) | 5 |
Radar intelligence
Web history (Wayback)
| Domain | reinsec.io |
|---|
Certificate / subdomain footprint
| Subdomains | 8 |
|---|
Israeli Companies Registrar (רשם החברות / ICA)
| Registrar # (ח.פ.) | 516992138 |
|---|---|
| Status | פעילה |
| Corp type | ישראלית חברה פרטית |
| Incorporated | 2024-06-03 |
| Purpose | לעסוק בכל עיסוק חוקי |
| Liability | מוגבלת |
| In violation (unfiled) | no |
| Active charges / liens | 1 |
| Registry events | 1 — charge (1) |
| Registered address | יצחק שדה 8 תל אביב - יפו |
Recent registry events
| Date | Event |
|---|---|
| 2026-02-04 | רישום שעבוד |