Assaf Rappaport
Angel Investor
San Francisco, United States
Assaf Rappaport is a Series A investor in San Francisco focused on Artificial Intelligence and Cyber Security. Assaf Rappaport is the Co-Founder and CEO of Wiz. He previously worked at Microsoft as a General Manager, at Microsoft Israel R and D. Assaf Rappaport attended Technion - Israel Institute of Technology.
- Total investments:
- 27
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Assaf Rappaport invests in
Stages Assaf Rappaport invests in
Countries Assaf Rappaport invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $4M–$51M
- Series A
- $17M–$80M
- Venture - Series Unknown
- $37M–$50M
Investment Focus
Industry
- Artificial Intelligence 10 (37%)
- Cyber Security 9 (33%)
- Information Technology 9 (33%)
- Software 7 (26%)
- Security 5 (19%)
Stage
- Series A 12 (44%)
- Seed 11 (41%)
- Venture - Series Unknown 3 (11%)
- Post-IPO Secondary 1 (4%)
Country
- Israel 12 (44%)
- United States 12 (44%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Guardio is building the future of personal security with a proactive, context-aware protection platform that keeps individuals and small businesses safe online across all devices and digital activity.Starting with a lightweight browser extension and expanding to a powerful mobile app, Guardio offers real-time phishing protection, identitymonitoring, scam site blocking, and actionable security insights. Guardio focuses on preventing modern threats before they cause harm, including AI-generated scams, fake storefronts, and brand impersonation.With over 1.5 million users globally, Guardio delivers seamless, always-on security for the modern digital world. | $40M / Venture - Series Unknown / Sep 03, 2026 | ||
| Enterprise Service Management that Runs Itself | $34M / Seed / Jul 28, 2026 | ||
| Neo Security is a cybersecurity company that develops an AI security platform for enterprises adopting agentic AI and AI-enabled software. The company helps organizations discover, assess, and secure AI-powered applications by providing visibility into how AI systems access data, make decisions, and interact with enterprise environments. Itsplatform is designed to address emerging security risks created by the rapid integration of AI capabilities into existing business software.The platform provides AI application discovery, AI asset inventory, security posture management, access governance, policy enforcement, risk assessment, and continuous monitoring for AI-enabled applications and autonomous agents. Neo enables security teams to identify AI-powered software across the enterprise, understand its permissions and underlying models, evaluate data access and usage, and implement controls to reduce security and compliance risks associated with agentic AI. | $75M / Series A / Jul 20, 2026 | ||
| NewCore is a security-first identity platform that governs every human and AI agent identity for the enterprise stack. The company discovers, maps, and governs all identities from a single scalable platform to enable the future of work and the agentic workforce | $50M / Series A / Jun 15, 2026 | ||
| A Security was intended to test systems the way genuine adversaries do, following attack vectors until they verify | $37M / Venture - Series Unknown / Jun 08, 2026 | ||
| Ocean develops an AI-native email security platform designed to detect and prevent phishing, business email compromise, financial fraud, and other targeted email attacks. The platform uses autonomous AI agents to investigate emails in real time by analyzing intent, validating identities, examining links and infrastructure, and gathering contextualinformation. Ocean also provides automated triage, incident response, and employee guidance capabilities to help organizations manage email security operations. | $20M / Series A / May 19, 2026 | ||
| Frame Security is an AI‑driven cybersecurity company focused on human‑risk management and security‑awareness training. It helps organizations defend against AI‑powered social‑engineering attacks, phishing, and deepfakes by turning employees into an active line of defense rather than a passive vulnerability. | $50M / Venture - Series Unknown / May 11, 2026 | ||
| JetStream Security is a platform for enterprise AI governance and security designed to manage, safeguard, and expand agentic AI in manufacturing. JetStream allows teams to define and approve AI behavior, ties all actions together, and offers continuous AI visibility across models, agents, copilots, tools, and processes. | $34M / Seed / Mar 03, 2026 | ||
| Fundamental is an AI research company that focuses on overcoming the fundamental challenges of machine learning in large-scale tabular systems. | $225M / Series A / Feb 05, 2026 | ||
| Genie Security is a cybersecurity startup that develops cybersecurity software focused on protecting enterprise data and monitoring sensitive information activity across organizational endpoints. The company builds endpoint-based data protection technology that identifies and responds to potential data leakage events in real time, including risksassociated with generative artificial intelligence tools and employee-driven data transfers. Its platform is designed to monitor endpoint activity, detect unauthorized sharing attempts, and support enterprise data loss prevention workflows. Genie Security also develops security controls that help organizations oversee the movement of confidential information across devices and applications. The company integrates automated detection and monitoring capabilities intended to improve visibility into internal data usage and security events. In addition, Genie Security supports enterprise cybersecurity operations through endpoint intelligence, risk analysis, and AI-related data protection measures for corporate environments. | $3M / Seed / Jan 01, 2026 | ||
| See all 27 investments → | |||
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FAQ
What does Assaf Rappaport invest in?
Assaf Rappaport invests primarily in Artificial Intelligence, Cyber Security and Information Technology startups, most often at Series A and Seed stage. Most of the 27 investments tracked by Shizune back companies in Israel. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Assaf Rappaport's check size?
Assaf Rappaport typically joins rounds of $4M–$51M at Seed, $17M–$80M at Series A and $37M–$50M at Venture - Series Unknown. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Assaf Rappaport participates in.
How do I contact Assaf Rappaport?
Public channels for Assaf Rappaport include LinkedIn, X (Twitter) and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Assaf Rappaport last invest?
The most recent investment recorded for Assaf Rappaport closed in Sep 2026. Shizune tracks 27 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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