Douglas Leone
Global Managing Partner @ Sequoia Capital
Menlo Park, United States
Douglas Leone is a Series A investor at Sequoia Capital in Menlo Park focused on Software and Cyber Security. Douglas Leone is the Partner of Sequoia Capital. Douglas Leone attended MIT Sloan School of Management.
- Total investments:
- 60
- Last investment:
- Lead investor:
- 33%
Last updated:
For AI agents: llms.txt
Industries Douglas Leone invests in
Stages Douglas Leone invests in
Countries Douglas Leone invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 8 (13%)
- Cyber Security 7 (12%)
- Analytics 6 (10%)
- Enterprise Software 6 (10%)
- Information Technology 4 (7%)
Stage
- Series A 12 (20%)
- Series B 12 (20%)
- Series C 9 (15%)
- Series D 6 (10%)
- Series F 5 (8%)
Country
- United States 17 (28%)
- Brazil 1 (2%)
- Israel 1 (2%)
- Germany 1 (2%)
- Uruguay 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Island is a cyber startup that provides a web browser for the enterprise to allow work to flow freely while remaining secure. It gives organizations complete control, visibility, and governance over the last mile helping the enterprise with improved performance and helping businesses to minimize their cyber footprint and create a safe space forwork to flow, boosting both security and productivity. | $400M / Series F / Sep 24, 2026 | ||
| Zafran Security is a cybersecurity startup specializing in vulnerability prioritization and threat exposure management, aiming to identify, remediate, and mitigate risks within organizations. The AI-native exposure management platform developed by the company aims to proactively avert the exploitation of vulnerabilities by incorporating autonomousagents throughout all stages of the vulnerability management lifecycle. With threat actors rapidly exploiting newly revealed security vulnerabilities through AI automation, Zafran's platform enables organizations to take action before these vulnerabilities result in incidents. The company’s solutions work alongside current security tools, utilizing AI agents to pinpoint weaknesses, provide contextual information, and address these issues by linking them to controls and evaluating the potential for exploitation. | Venture - Series Unknown / Jul 22, 2026 | ||
| Cyera provides a data security platform that helps organizations discover, classify, monitor, and protect sensitive data across cloud, SaaS, on-premises, and hybrid environments. The platform combines data security posture management, data loss prevention, access governance, and AI security capabilities to help organizations understand wherecritical data resides, who can access it, and how it is being used. Cyera uses automated data discovery and classification to identify sensitive information and assess potential security risks across enterprise systems. Its platform also supports monitoring of human and AI interactions with data, enabling organizations to investigate access activity, manage permissions, and address security issues. Through integrations with existing technology environments, Cyera helps security teams maintain visibility into data assets and implement controls to reduce data-related risk. | $600M / Series G / Jun 02, 2026 | ||
| Oasis Security is the top provider of Non-Human Identity Management (NHIM) solutions. NHI Management is a major and unresolved security flaw that malevolent cyber attackers regularly exploit. | $120M / Series B / Mar 19, 2026 | ||
| Trade Republic is a mobile-only and commission-free broker that brings the opportunity to invest easily. The company works as a broker for a new generation for a more mobile, more intuitive, faster - and permanently free of commission. Trade Republic was founded in 2015 and based in Berlin, Germany. | $1.4B / Secondary Market / Dec 17, 2025 | ||
| Cyera provides a data security platform that helps organizations discover, classify, monitor, and protect sensitive data across cloud, SaaS, on-premises, and hybrid environments. The platform combines data security posture management, data loss prevention, access governance, and AI security capabilities to help organizations understand wherecritical data resides, who can access it, and how it is being used. Cyera uses automated data discovery and classification to identify sensitive information and assess potential security risks across enterprise systems. Its platform also supports monitoring of human and AI interactions with data, enabling organizations to investigate access activity, manage permissions, and address security issues. Through integrations with existing technology environments, Cyera helps security teams maintain visibility into data assets and implement controls to reduce data-related risk. | $400M / Series F / Dec 16, 2025 | ||
| Zafran Security is a cybersecurity startup specializing in vulnerability prioritization and threat exposure management, aiming to identify, remediate, and mitigate risks within organizations. The AI-native exposure management platform developed by the company aims to proactively avert the exploitation of vulnerabilities by incorporating autonomousagents throughout all stages of the vulnerability management lifecycle. With threat actors rapidly exploiting newly revealed security vulnerabilities through AI automation, Zafran's platform enables organizations to take action before these vulnerabilities result in incidents. The company’s solutions work alongside current security tools, utilizing AI agents to pinpoint weaknesses, provide contextual information, and address these issues by linking them to controls and evaluating the potential for exploitation. | $60M / Series C / Dec 02, 2025 | ||
| Cyera provides a data security platform that helps organizations discover, classify, monitor, and protect sensitive data across cloud, SaaS, on-premises, and hybrid environments. The platform combines data security posture management, data loss prevention, access governance, and AI security capabilities to help organizations understand wherecritical data resides, who can access it, and how it is being used. Cyera uses automated data discovery and classification to identify sensitive information and assess potential security risks across enterprise systems. Its platform also supports monitoring of human and AI interactions with data, enabling organizations to investigate access activity, manage permissions, and address security issues. Through integrations with existing technology environments, Cyera helps security teams maintain visibility into data assets and implement controls to reduce data-related risk. | $540M / Series E / Jun 11, 2025 | ||
| Island is a cyber startup that provides a web browser for the enterprise to allow work to flow freely while remaining secure. It gives organizations complete control, visibility, and governance over the last mile helping the enterprise with improved performance and helping businesses to minimize their cyber footprint and create a safe space forwork to flow, boosting both security and productivity. | $250M / Series E / Mar 26, 2025 | ||
| Cyera provides a data security platform that helps organizations discover, classify, monitor, and protect sensitive data across cloud, SaaS, on-premises, and hybrid environments. The platform combines data security posture management, data loss prevention, access governance, and AI security capabilities to help organizations understand wherecritical data resides, who can access it, and how it is being used. Cyera uses automated data discovery and classification to identify sensitive information and assess potential security risks across enterprise systems. Its platform also supports monitoring of human and AI interactions with data, enabling organizations to investigate access activity, manage permissions, and address security issues. Through integrations with existing technology environments, Cyera helps security teams maintain visibility into data assets and implement controls to reduce data-related risk. | $300M / Series D / Nov 20, 2024 | ||
| See all 60 investments → | |||
Co-Investors
About Sequoia Capital
Sequoia Capital provides capital alongside strategic guidance, supporting areas such as product development, company building, and market expansion. The firm engages with a limited number of companies at a time, working closely with leadership teams throughout the business lifecycle. Sequoia Capital focuses on long-term partnerships, often entering at the idea or formation stage and remaining involved as companies scale and mature. Its approach emphasizes collaboration among its internal team and portfolio founders, drawing on shared experience to address operational and strategic challenges.
Sequoia Capital Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Anas Biad
Partner
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Andrew Lee
Vice President
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Carl Eschenbach
Partner
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Caroline Fu
Vice President
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Donald Valentine
Founder
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FAQ
What does Douglas Leone invest in?
Douglas Leone invests primarily in Software, Cyber Security and Analytics startups, most often at Series A and Series B stage. Most of the 60 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Douglas Leone?
Public channels for Douglas Leone include LinkedIn and X (Twitter). 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 Douglas Leone last invest?
The most recent investment recorded for Douglas Leone closed in Sep 2026. Shizune tracks 60 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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