# Dan Nguyen-Huu

> Dan Nguyen-Huu is a seed investor at Decibel Partners backing Cyber Security and Software. See 9 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Decibel Partners](https://shizune.co/investors/profile/decibel-vc)
- Location: San Francisco, United States
- Total investments: 9
- Last investment: Apr 2026
- Lead investor: 78%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/dan-nguyen-huu-11502719/

Dan Nguyen-Huu is a seed investor at Decibel Partners in San Francisco focused on Cyber Security and Software. Dan Nguyen-Huu iis the Partner at Decibel VC. Dan Nguyen-Huu attended University of California, Berkeley.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Cyber Security | 4 | 44% |
| Software | 3 | 33% |
| Information Technology | 2 | 22% |
| Security | 1 | 11% |
| Analytics | 1 | 11% |

11 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 4 | 44% |
| Series A | 3 | 33% |
| Series B | 1 | 11% |
| Funding Round | 1 | 11% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Mallory | Mallory provides an AI-native threat intelligence platform that monitors global cyber threats, correlates them with a customer's attack surface, and delivers prioritized, actionable insights for security teams. It ingests data from thousands of sources, automates enrichment and triage, and integrates with existing tools like SIEM and SOAR forautomated responses such as ticket creation and notifications. The platform supports natural language monitoring, generates decision traces for audits, and focuses on answering whether an organization is affected by events like zero-days or supply chain breaches. |  | Seed | Apr 06, 2026 |  |
| Pixee | Pixeebot fixes vulnerabilities, hardens code, squashes bugs, and gives engineers more time to focus on the work that counts by conveniently delivering solutions as a pull request. | $15M | Seed | May 22, 2025 |  |
| Sublime Security | Open, adaptable email security. | $60M | Series B | Dec 12, 2024 |  |
| Fixify | Fixify is an AI powered managed service provider for IT support. | $25M | Series A | Oct 23, 2024 |  |
| Sublime Security | Open, adaptable email security. | $20M | Series A | Apr 24, 2024 |  |
| Sublime Security | Open, adaptable email security. | $9.8M | Seed | Feb 21, 2023 |  |
| Propelo | Propelo provides timely real-time engineering metrics to help improve team performance. | $12M | Series A | Nov 04, 2021 |  |
| runZero, Inc | Rumble brings together the best of IT, security and networking technology to deliver amazing network discovery and asset inventory capabilities for modern enterprises. | $5M |  | Mar 16, 2021 |  |
| runZero, Inc | Rumble brings together the best of IT, security and networking technology to deliver amazing network discovery and asset inventory capabilities for modern enterprises. | $5M | Seed | Mar 16, 2021 |  |

9 of 9 investments shown.

## Co-investors
- [IVP](https://shizune.co/investors/profile/institutional-venture-partners) — VC Fund, 4 deals together
- [Index Ventures](https://shizune.co/investors/profile/index-ventures) — VC Fund, 3 deals together
- [Slow Ventures](https://shizune.co/investors/profile/slow-ventures) — VC Fund, 3 deals together
- [StoneMill Ventures](https://shizune.co/investors/profile/stonemill-ventures) — VC Fund, 2 deals together
- [Citi Ventures](https://shizune.co/investors/profile/citi-ventures) — VC Fund, 1 deal together
- [Costanoa Ventures](https://shizune.co/investors/profile/costanoaventures) — VC Fund, 1 deal together

## About Decibel Partners

VC Fund · Palo Alto, United States

Decibel is an independent venture capital firm that provides resources to entrepreneurs.

3 contacts available at Decibel Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Francois Dufour | Marketing Partner and CMO | https://shizune.co/investors/profile/francois-dufour |
| Dan Nguyen-Huu | Partner | https://shizune.co/investors/profile/dan-nguyen-huu |
| Stacey Wueste | Business Development Partner | https://shizune.co/investors/profile/stacey-wueste |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Dan Nguyen-Huu invest in?

Dan Nguyen-Huu invests primarily in Cyber Security, Software and Information Technology startups, most often at Seed and Series A stage. Most of the 9 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Dan Nguyen-Huu last invest?

The most recent investment recorded for Dan Nguyen-Huu closed in Apr 2026. Shizune tracks 9 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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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