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Rein Security

Rein Security is a software platform that provides cybersecurity services, specialising in Application Security(AppSec).

Rein Security is a company based in Tel Aviv, Israel. Recent Funding lists it under Cybersecurity. It raised $25M in a Series A round in October 2026, led by Glilot Capital Partners, according to calcalistech.com. Recent Funding has 2 sourced rounds on record for it, totaling $33M, the first in January 2026. Investors on record include Amir Jerbi, Atlacle, Corner Ventures, Ofer Ben Noon and 2 others. It was founded by Matan Bar Efrat and Netanel Rubin.

Website: reinsec.io.
X: @ReinAgentSec · 9 followers.
LinkedIn: linkedin.com.
Category: Cybersecurity.
Sectors: Apps, Cyber Security, Digital Signage, SaaS, Software.
Stage: Series A.
Based in: Tel Aviv, Israel.
Total raised: $33M in 2 sourced rounds.
Last round: Oct 8, 2026 · 4 days ago.
X account age: 8 months.
On Recent Funding since: Oct 9, 2026.
TIMELINE · MONEY RAISED

Rein Security | 2 days from X account to first raise on record

@ReinAgentSec·Raised $33M in 2 sourced rounds·1 signal before the first raise
$8.3M$17M$25M$33MFEBAPRJUNAUGOCT$33M||X ACCOUNT CREATED @REINAGENTSEC · JAN 27, 2026$8M Seed · Jan 29, 2026$8M SEED · JAN '26$25M Series A · Oct 8, 2026$25M A · OCT '26

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

  1. Series A · $25M
  2. Seed · $8M
  3. X account created

Founders and team

Investors

Rein Security: questions and answers

How much has Rein Security raised?
Rein Security has raised $33M across 2 sourced rounds on record. The latest is $25M (Series A), announced October 8, 2026.
Who invested in Rein Security?
Investors on record for Rein Security: Amir Jerbi, Atlacle, Corner Ventures, Glilot Capital Partners, Ofer Ben Noon, RNP Capital Advisors, Sienna and Yoav Alon. Glilot Capital Partners led its latest sourced round.
Who founded Rein Security?
Rein Security was founded by Matan Bar Efrat (Co Founder & CEO) and Netanel Rubin (Co-Founder & CTO).
Where is Rein Security based?
Rein Security is based in Tel Aviv, Israel.

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Every amount links to the page it came from. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/rein-security (get a free API key).

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