SeaX Ventures
VC Fund
San Francisco, United States
SeaX Ventures is a VC fund in San Francisco focused on Health Care and Biotechnology. SeaX - Southeast Asia Exponential Ventures is a venture capital firm investing globally in early-stage companies with game-changing “exponential” technologies. We deliver a unique access to a highly selective group of innovative companies from around the globe. We combine our strong entrepreneurial, investing, and scientific background withextensive professional networks across Asia and the US to identify the best investment opportunities. Most importantly, we aim to achieve both financial returns and strategic advantages for our investors.Some of the key highlights - Access: We provides our investors access to deal flows globally with a primary focus in the U.S. and Southeast Asia. - Accelerate: Our fund leverages RISE's platforms and networks which has over 1000+ startups alumni across Asia and several hundred corporate partners to help startups scale quickly. - Advantage: Our investors are top multinational corporations and family offices, collectively we can become the network of entrepreneurs, business partners, and co-investors.
- Total investments:
- 46
- Last investment:
- Lead investor:
- 20%
- Fund size:
- $6M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries SeaX Ventures invests in
Stages SeaX Ventures invests in
Countries SeaX Ventures invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $1.6M–$15M
- Pre-Seed
- $4M–$5.6M
- Series A
- $5M–$47M
Investment Focus
Industry
- Health Care 8 (17%)
- Biotechnology 7 (15%)
- Medical 6 (13%)
- Software 5 (11%)
- Blockchain 5 (11%)
Stage
- Seed 24 (52%)
- Series A 8 (17%)
- Pre-Seed 4 (9%)
- Convertible Note 3 (7%)
- Venture - Series Unknown 2 (4%)
Country
- United States 22 (48%)
- Thailand 3 (7%)
- Germany 2 (4%)
- Chile 1 (2%)
- Canada 1 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Nattaphol Vimolchalao
Co-Founder & Venture Partner
|
Co-Founder & Venture Partner | Total investments: 2 | Find email | |
Supachai Parchariyanon
Managing Partner
|
Managing Partner | Total investments: 16 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Onibi develops an online open world for exploration and creativity. The company focuses on building multiplayer experiences and gaming platforms. The team works remotely with equipment and coworking support provided. Employees receive health insurance, parental leave, and childcare assistance. Paid training, relocation packages, and yearly teamseminars are also part of the services offered. | Venture - Series Unknown / Jun 10, 2026 | ||
| Melazyme is an early-stage biotechnology company specializing in microbial fermentation to produce high-purity melanin for applications in water remediation, metal extraction, and cosmetics, as well as food-grade protein sweeteners that serve as alternatives to thaumatin, monellin, and brazzein. The firm also provides contract manufacturingorganization (CMO) services, leveraging bioreactor scales from 30 L to 500 L with downstream processes including chromatography, filtration, spray drying, and lyophilization. | $2M / Seed / May 14, 2026 | ||
| Rybodyn is a biotechnology research company that develops therapeutics to train the immune system to detect and eradicate cancer internally. | $10M / Seed / Mar 24, 2026 | ||
| A2z Radiology AI is a healthcare technology company that specialises in AI-powered solutions for radiology. It is a medical-technology company developing a generalist artificial-intelligence system for radiology that aims to review entire scans for multiple conditions. The company’s first product, a2z-1, is designed to analyze abdominal-pelvis CTscans and detect 21 actionable clinical findings in a single pass. The tool operates as a “second set of eyes” on imaging reports: it runs in the background, highlights discrepancies between radiologist reports and its own analyses, and alerts users when significant findings may have been missed. | $4.5M / Seed / Dec 09, 2025 | ||
| Hepta determines chronic disease early by using cfDNA epigenetic analysis and AI to provide accurate, non-invasive diagnostics at the community level. | $6.7M / Seed / Nov 05, 2025 | ||
|
Alfred
|
Alfred is a learning management system (LMS) that helps businesses increase sales productivity by providing contextual enablement based on the best practices and knowledge. | Seed / Oct 15, 2025 | |
| Brineworks' saltwater electrolyser's high-efficiency design allows for industry-leading CO2 extraction while also creating green hydrogen (H2) at a reasonable cost. | $8M / Seed / Sep 19, 2025 | ||
| Empo Health is an in-home health monitoring that fits seamlessly into patients' lives. | $7M / Venture - Series Unknown / Jun 24, 2025 | ||
| Rybodyn is a biotechnology research company that develops therapeutics to train the immune system to detect and eradicate cancer internally. | $4M / Pre-Seed / Jan 09, 2025 | ||
| Hoxton Farms grow pork fat, a healthy and future-proof ingredient for the food industry. Founded in 2020 by Dr Max Jamilly and Ed Steele, Hoxton Farms are building the world's most scalable and cost-effective tech stack for mammalian cell biomanufacturing – and they are monetising it with a premium B2B ingredient. Based in London, Hoxton Farmsare a team of 50 people including world-class talent in AI/ML, synthetic biology and hardware engineering. | Series A / Jun 30, 2024 | ||
| See all 46 investments → | |||
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FAQ
What does SeaX Ventures invest in?
SeaX Ventures invests primarily in Health Care, Biotechnology and Medical startups, most often at Seed and Series A stage. Most of the 46 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 SeaX Ventures's check size?
SeaX Ventures typically joins rounds of $1.6M–$15M at Seed, $4M–$5.6M at Pre-Seed and $5M–$47M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds SeaX Ventures participates in.
How do I contact SeaX Ventures?
Public channels for SeaX Ventures include LinkedIn. 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.
Who are the partners at SeaX Ventures?
The team at SeaX Ventures includes Nattaphol Vimolchalao (Co-Founder & Venture Partner) and Supachai Parchariyanon (Managing Partner). The Team section lists each member with their title, investment count and links.
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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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