Prime Security
Prime Security is an artificial intelligence company in Tel Aviv, Israel, founded in 2023. It has raised $26.0M across 2 rounds, most recently a $20.0M Series A in December 2025.
Securing every product design decision
- Headquarters
- Tel Aviv
- Employees
- 11–50
- Founded
- 2023
- Business Model
- B2B
- Website
- primesec.ai
- Total Funding
- $26.0M
- Last Round
- $20.0M Series ADec 2025
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds and 4 investors for this company. The full record is or through the API.
About
Prime Security is a cybersecurity SaaS platform that embeds an AI-powered security architect into the software development lifecycle at the design stage — before code is written. Its core product, Prime, ingests product and engineering tickets along with associated design artifacts, automatically performs threat modeling and security design reviews, and delivers structured risk findings and mitigations to security and engineering teams. Key capabilities include design-stage risk visibility and posture management, automated security and privacy design reviews, and secure architecture guidance for AI-generated code. Prime integrates with Slack and developer workflows so security reviews happen in hours rather than weeks, enabling small security teams to achieve full coverage across all new product features. The company is headquartered in Tel Aviv and New York City, raised a $20M Series A led by Scale Venture Partners, and counts SmartBear, BigID, Redis, PayPal, Oscar Health, MX, and ThoughtSpot among its customers.
Summary
It lists 11–50 employees. It has raised $26.0M in total across 2 rounds, most recently a $20.0M Series A round in Dec 2025. Investors include Foundation Capital, Scale Venture Partners and Flybridge Capital.
Tech & App Stack
9 technologies & apps tracked
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Funding History
Dec 2025
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Funding: Seed through Series A. Amounts, valuations, and investors where available.
Investors
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