Shlomo Kramer
Angel Investor · at Skinos Ventures
Tel Aviv, Israel
Shlomo Kramer is a seed investor at Skinos Ventures in Tel Aviv focused on Cyber Security and Software. Shlomo is co-founder and CEO of Cato Networks. He is a network security expert and a serial entrepreneur. Shlomo has co-founded Check Point Software, who created the first commercial Firewall, and Imperva, the innovator of the Web Application Firewall. Shlomo has made early investments in successful cybersecurity companies including Palo AltoNetworks, Trusteer, and numerous others. He was named CEO of the Year by SC Magazine in 2008, one of “20 luminaries who changed the network industry” by Network World in 2006, and was inducted into the InfoSec Hall of Fame in April 2013.Shlomo holds a master’s degree in computer science from Hebrew University of Jerusalem and a Bachelor of Science degree in mathematics and computer science from Tel Aviv University. @office.ceohq@gmail.com
- Total investments:
- 66
- Last investment:
- Lead investor:
- 5%
Last updated:
For AI agents: llms.txt
Industries Shlomo Kramer invests in
Stages Shlomo Kramer invests in
Countries Shlomo Kramer invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $4M–$14M
- Series A
- $5.1M–$29M
- Series B
- $12M–$50M
Investment Focus
Industry
- Cyber Security 15 (23%)
- Software 14 (21%)
- Security 13 (20%)
- Artificial Intelligence 9 (14%)
- Network Security 8 (12%)
Stage
- Seed 17 (26%)
- Series A 16 (24%)
- Series B 13 (20%)
- Series C 5 (8%)
- Series D 3 (5%)
Country
- United States 26 (39%)
- Israel 9 (14%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Aryon Security provides a cloud security enforcement platform that helps organizations prevent security risks before they are deployed into cloud environments. The company enables security teams to define, manage, and enforce cloud security policies across infrastructure managed through infrastructure-as-code tools, command-line interfaces, cloudconsoles, and third-party services. Its platform applies preventive controls at the deployment stage, helping organizations address configuration risks before they reach production environments. The solution includes policy management, automated policy recommendations, exception handling workflows, drift monitoring, and support for multi-cloud environments. Aryon Security also offers AI-driven policy capabilities that adapt security controls to an organization’s cloud infrastructure and operational requirements, helping teams maintain governance and compliance while reducing reliance on reactive remediation processes. | $29M / Series A / Jun 10, 2026 | ||
| Clover Security delivers design-led product security, using AI agents to embed security into the earliest stages of development, replicating the thinking of experienced security architects to surface risks early, anticipate flaws, and make software products secure by nature. | $30M / Series A / Nov 25, 2025 | ||
| Opti is an AI-powered identification protection system that uses domain-trained models to automate enterprise IAM. | $20M / Seed / Nov 24, 2025 | ||
| Aryon Security provides a cloud security enforcement platform that helps organizations prevent security risks before they are deployed into cloud environments. The company enables security teams to define, manage, and enforce cloud security policies across infrastructure managed through infrastructure-as-code tools, command-line interfaces, cloudconsoles, and third-party services. Its platform applies preventive controls at the deployment stage, helping organizations address configuration risks before they reach production environments. The solution includes policy management, automated policy recommendations, exception handling workflows, drift monitoring, and support for multi-cloud environments. Aryon Security also offers AI-driven policy capabilities that adapt security controls to an organization’s cloud infrastructure and operational requirements, helping teams maintain governance and compliance while reducing reliance on reactive remediation processes. | $9M / Seed / Mar 04, 2025 | ||
| Clutch Security provide security teams with comprehensive, clear, and actionable tools for Non-Human Identity security. | $8.5M / Seed / Jul 30, 2024 | ||
| Token Security specializes in a machine-first approach to identity security. Recognizing the limitations of traditional human-centric identity tools, the company addresses the challenges posed by the growing number of machines, apps, and services that access cloud resources. Their innovative solutions focus on understanding and controlling theidentity exposure from a machine perspective to secure organizations' critical assets more effectively. | $7M / Seed / May 08, 2024 | ||
| Nagomi is changing the way security teams balance risk and defense, empowering customers to focus on what matters now. By mapping customers’ existing security tools to the threats that matter and providing prescriptive remediation plans, the Nagomi Proactive Defense Platform finally makes it possible to optimize, measure, and maximize the ROI ofsecurity investments. By taking a threat-centered, data-driven, and actionable approach to risk and cybersecurity, customers are able to provide high-level cybersecurity maturity metrics to executives while simultaneously showing security practitioners exactly what to do to reduce risk, fix misconfigurations, and make strategic decisions with business context. Learn more at nagomi.security. | $23M / Series A / Apr 23, 2024 | ||
| Port is a software platform that provides an internal developer portal solution supporting software engineering workflows and operations for engineering teams. It offers tools to centralize engineering data, model a unified software catalog, and automate routine actions such as provisioning resources or responding to incidents through configurableworkflows and AI-enabled interactions. The platform integrates with existing development tools and systems to give teams a consistent source of truth for services, metrics, and processes, and makes contextual information accessible via interfaces and natural language queries. Port also includes mechanisms for monitoring engineering performance indicators and managing access controls across development environments. The company maintains documentation, support resources, and AI assistance features to help users implement and troubleshoot portal configurations. | $18M / Series A / Sep 13, 2023 | ||
| Silk Security is a platform that enables businesses to adopt a comprehensive strategy for addressing code, infrastructure, and application risk. It incorporates AI technology to automate prioritizing, combining, and contextualizing data from various detection systems. | $12.5M / Seed / Aug 01, 2023 | ||
| Backslash Security is revolutionizing application security with a cloud-native solution that emphasizes risk context. | $8M / Seed / Mar 22, 2023 | ||
| See all 66 investments → | |||
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FAQ
What does Shlomo Kramer invest in?
Shlomo Kramer invests primarily in Cyber Security, Software and Security startups, most often at Seed and Series A stage. Most of the 66 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Shlomo Kramer's check size?
Shlomo Kramer typically joins rounds of $4M–$14M at Seed, $5.1M–$29M at Series A and $12M–$50M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Shlomo Kramer participates in.
How do I contact Shlomo Kramer?
Public channels for Shlomo Kramer 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 Shlomo Kramer last invest?
The most recent investment recorded for Shlomo Kramer closed in Jun 2026. Shizune tracks 66 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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