# Sara Du

> Sara Du is a seed investor backing Software and Artificial Intelligence. See 24 investments, round sizes, portfolio and contact details. Updated Oct 2026.

- Type: Angel Investor
- Location: San Francisco, United States
- Total investments: 24
- Last investment: May 2025
- Lead investor: 0%
- Last updated: Oct 2026
- LinkedIn: https://linkedin.com/in/saradu
- X (Twitter): https://twitter.com/saraduit
- Website: https://www.saradu.com/

Sara Du is a seed investor in San Francisco focused on Software and Artificial Intelligence. Sara Du - CEO & Co-Founder @ Alloy Automation

## Contacts

5 contacts available for Sara Du: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/sara-du?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 8 | 33% |
| Artificial Intelligence | 8 | 33% |
| Information Technology | 4 | 17% |
| Retail | 2 | 8% |
| Internet | 2 | 8% |

41 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 19 | 79% |
| Pre-Seed | 3 | 13% |
| Series A | 1 | 4% |
| Funding Round | 1 | 4% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 18 | 75% |
| France | 1 | 4% |

## Investments

| Company | Description | Round size | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| FLORA | FLORA is an applied AI HCI company building creative tools. | $6.5M | Seed | May 29, 2025 | https://www.florafauna.ai |
| Browser Use | Make Websites Accessible for Agents | $17M | Seed | Mar 22, 2025 | https://browser-use.com |
| Mastra | Mastra is an AI software that helps users to typescript complex operations and complete set of work using AI. | $500K | Pre-Seed | Mar 12, 2025 | https://mastra.ai/ |
| Icon | Icon helps brands partner with creators, turn 1 video into 20 videos with AI, and A/B test messaging to find winning ads. We’re backed by Peter Thiel’s Founders Fund, as well as founders & executives of OpenAI, Ramp, Flexport, Pika, & Cognition (Devin). |  |  | Feb 04, 2025 | https://icon.me |
| Icon | Icon helps brands partner with creators, turn 1 video into 20 videos with AI, and A/B test messaging to find winning ads. We’re backed by Peter Thiel’s Founders Fund, as well as founders & executives of OpenAI, Ramp, Flexport, Pika, & Cognition (Devin). |  | Seed | Sep 04, 2024 | https://icon.me |
| Weights | Weights is a social AI Creation Platform. Create audio, images, chat, and more for free, and share with your friends! |  | Seed | Sep 01, 2024 | https://www.weights.gg/ |
| Haize Labs | Haize Labs creates artificial intelligence-based development tools that automate massive language model stress testing at scale. The company assists users in identifying how their large language models can fail and then stress-testing them to discover flaws, allowing for the development of more robust LLMs and a new generation of dependable LLMapplications. |  | Seed | Aug 07, 2024 | https://haizelabs.com |
| Didero | The AI agent for procurement | $7M | Seed | Jul 17, 2024 | https://www.didero.ai |
| Momentic | Momentic enables developers to deploy AI agents to test web apps end-to-end. Just describe user flows using natural language. | $500K | Pre-Seed | Apr 03, 2024 | https://momentic.ai |
| Orchard Robotics | Orchard Robotics develops an operating system that enables precision agriculture driven by robots and AI. Its camera systems and computer vision software gather precise data for the visible fruit on any tree. It is utilized by growers, packers, and marketers to manage crop load and supply chains. | $3.2M | Seed | Mar 27, 2024 | https://www.orchard-robotics.com |

10 of 24 investments shown.

## Co-investors
- [Y Combinator](https://shizune.co/investors/profile/y-combinator) — VC Fund, 7 deals together
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund, 4 deals together
- [Bain Capital Ventures](https://shizune.co/investors/profile/bain-capital-ventures) — VC Fund, 3 deals together
- [Contrary](https://shizune.co/investors/profile/contrary-capital) — VC Fund, 3 deals together
- [La Famiglia](https://shizune.co/investors/profile/la-famiglia) — VC Fund, 3 deals together
- [Soma Capital](https://shizune.co/investors/profile/soma-capital) — VC Fund, 3 deals together

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## FAQ

### What does Sara Du invest in?

Sara Du invests primarily in Software, Artificial Intelligence and Information Technology startups, most often at Seed and Pre-Seed stage. Most of the 24 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 Sara Du?

Public channels for Sara Du include LinkedIn, X (Twitter) and the website linked on this profile. 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 Sara Du last invest?

The most recent investment recorded for Sara Du closed in May 2025. Shizune tracks 24 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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