Fundraising Fox

SeaX Ventures

Venture capital

Millbrae · Pre-Seed–Series A · 33 people tracked

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Investment thesis

SeaX Ventures invests globally in early-stage deep-tech startups working on 'exponential' technologies that can transform societies and drive economic progress. Its focus areas include healthtech, biotech, AI infrastructure, advanced materials/nanotechnology, climate tech, physical AI, space tech, and quantum. The firm leverages a strong network across the U.S. and Asia, with LPs consisting of major regional corporations and family offices, and ties to affiliate company RISE and its 2000+ startup alumni. Through its '3As' approach (Access, Accelerate, Advantage), SeaX connects portfolio companies with corporate partners and co-investors, positioning itself as a bridge between Silicon Valley and Southeast Asia to help founders build audacious global companies.

Source: firm website, verified Aug 3, 2026.

Stage
Pre-Seed–Series A
Check
$100K – $5M
HQ
Millbrae, US
Leads rounds
Follows
Instruments
Equity
Founded
2018
Last 12 months
4 investments
AUM
$70M
Tracked investments
8

Team · 33 people

from the firm's website & public directories
Nattapat (Kun) Thanesvorakul· Principal
Prem Tumkosit· Venture Partnerin
Alexander An· Fellow '24

SeaX Ventures Fellow (2024); PharmD from UNC Eshelman School of Pharmacy.

Andrew Barnett· Fellow '21

SeaX Ventures Fellow (2021); MBA from Stanford University.

Anshul Khazanchi Sinha· Fellow '23

SeaX Ventures Fellow (2023); B.S. in Electrical & Electronics Engineering.

Chinedum Umachi· Fellow '21

SeaX Ventures Fellow (2021); MBA from Stanford University.

Dan Sunchu· Fellow '23

SeaX Ventures Fellow (2023); BA in Data Science and BS in Business Administration from UC Berkeley.

Fon Vichitmontre· Analystin
Hao Bin Tang· Fellow '24

SeaX Ventures Fellow (2024); holds an MFE from Oxford University.

Hein Thu· Fellow '24

SeaX Ventures Fellow (2024); holds an MPH from Harvard University.

Jin Cheevaprawatdomrong· Fellow '24

SeaX Ventures Fellow (2024); pursuing an MSc in Digital Scholarship at Oxford University.

John Woo· Fellow '22

SeaX Ventures Fellow (2022); MSc in Management from University College London.

Joshua Yang· Fellow '20

SeaX Ventures Fellow (2020); MBA from Stanford University.

Pakhun Rattanachaikanont· Fellow '23

SeaX Ventures Fellow (2023); MBA from University of North Carolina at Chapel Hill.

Pasu Akaniwan· Fellow '22

SeaX Ventures Fellow (2022); BAScii from Chulalongkorn University.

Pawit Sethbhakdi· Fellow '21

SeaX Ventures Fellow (2021); BS from Columbia University.

Peem Hiransrisoontorn· Fellow '23

SeaX Ventures Fellow (2023); MEng from Imperial College London.

Pichetpat Chandrema· Fellow '22

SeaX Ventures Fellow (2022); MFin from University of Cambridge.

Poom Tanthaprabha· Portfolio Managerin
Pornpanit Rasivisuth· Fellow '23

SeaX Ventures Fellow (2023); PhD Candidate at University College London.

Shashwat Shivam· Fellow '22

SeaX Ventures Fellow (2022); MBA from Harvard University.

Wu Shaoyi· Fellow '23

SeaX Ventures Fellow (2023); MFE from Oxford University.

Youngwoo Cho· Fellow '22

SeaX Ventures Fellow (2022); Master of Translational Medicine from UCSF/UC Berkeley.

Krit (Boom) Uthaisang· Analystin

What they invest in

from 6 of 8 portfolio companies

Healthtech ×4Medical Devices ×3AI & Machine Learning ×2Biotech ×2Cleantech ×2Deep Tech ×2Digital Health ×2Climate Tech ×1

HQs:United States×6

Investments · 8 tracked

founders shown can be your intro path

By year:2026 · 22025 · 35 dated

Brineworksbrineworks.techin𝕏Sep 2025 · $5.5M✓ verified

Brineworks develops an electrochemical Direct Air Capture system that uses electrolyzer technology and renewably powered intermittent operation to capture CO₂ at low cost.

CleantechClimate TechDeep Tech

Co-investorsAiiM PartnersFirst MomentumSatganaKatapultNucleus CapitalPale Blue Dot

Active Surfacesactivesurfaces.xyzinMay 2025 · $5.6M

Active Surfaces develops flexible, thin-film solar panels using organic and perovskite photovoltaic materials and roll-to-roll manufacturing, aimed at deploying solar in locations where conventional rigid panels are unsuitable.

CleantechDeep TechNew MaterialsWoburn, US

Shivam Bhakta(Executive Officer, Director)Richard Swartwout(CTO & Co-Founder)inShiv Bhakta(CEO & Co-Founder)inJeremiah Mwaura(Chief Manufacturing Scientist)

BoardVera Schroeder(Director)

Co-investorsNew Climate VenturesSafar PartnersType One VenturesUmami Capital

Empo Healthempohealth.comin

Empo Health develops in-home health monitoring devices for diabetic patients and healthcare providers to improve care outcomes.

Digital HealthHealthtechMedical DevicesSan Francisco, US

Eric Dahlseng(Founder)inAnuj Khandelwal(Founder)in

Co-investorsStory VenturesUlu VenturesVTC VenturesGaingelsUbiquity Ventures

Empo Healthempo.healthin

Empo Health provides remote monitoring tools for diabetic patients at risk of foot ulcers, including an imaging scale and patient monitoring service that enables providers to track foot health and detect issues earlier.

Digital HealthHealthtechMedical Devices

Eric Dahlseng(Founder)in

Co-investorsUlu VenturesGaingelsStory Ventures

Epinomaepinoma.comin

Epinoma develops EpiAmp, a methyl-preserving amplification technology to analyze epigenetic changes and methylation patterns for applications in disease detection, drug development, and patient stratification.

AI & Machine LearningBiotechHealthtechMedical DevicesSan Francisco, US

Varun Govil(Founder)inZhijian Li(Founder)in

Co-investorsY CombinatorSeedToB

Heptahepta.bioinNov 2025 · $6.7M

Hepta develops LiquidTransformer, an AI platform for analyzing cell-free DNA fragments in blood to detect chronic disease molecular signals.

AI & Machine LearningBiotechHealthtechSan Francisco, US

Hamed Amini(Founder)inSoheil Damangir(Founder)

Co-investorsIllumina VenturesAlumni VenturesAME Cloud VenturesFelicis Ventures

OnibiJun 2026

Claymont, US

Benjamin Devienne(Executive Officer, Director)

Co-investorsSerena

Perfect Dayin𝕏May 2026 · $2M

Berkeley-based food technology company making whey protein by precision fermentation in microflora instead of from cows.

Berkeley, US

Perumal Gandhi(Director)Ryan Pandya(Executive Officer, Director)Sonny Vu(Director)Zhang Haorui(Director)Kang Tzu Ping(Director)

Co-investorsHorizons VenturesK3 VenturesManta Ray VenturesSynthesis CapitalPlug and Play VenturesTemasek

Portfolio news

latest coverage across their companies

Frequently asked questions

What stage does SeaX Ventures invest at?
SeaX Ventures invests at the Pre-Seed, Seed, Series A stages.
What is SeaX Ventures's typical check size?
SeaX Ventures typically writes checks of $100K – $5M.
What sectors does SeaX Ventures focus on?
SeaX Ventures focuses on AI & Machine Learning, Biotech, Cleantech, Climate Tech, Consumer, Data & Infrastructure, Deep Tech, Enterprise Software, Fintech, FoodTech, Hardware, Healthtech, Media & Entertainment, New Materials, Quantum Computing, Robotics, SaaS, Space Tech.
Where is SeaX Ventures located?
SeaX Ventures is headquartered in Millbrae, US.
Does SeaX Ventures lead rounds?
SeaX Ventures typically participates in rounds rather than leading them.

Images

SeaX Ventures photo

Co-investors · 12

Alumni Ventures

Alumni Ventures (AV) is a venture capital firm that co-invests alongside lead VCs in startups, backing founders with capital and access to a large investor and operator community.

Both backed · 1
$100K – $10M
Plug and Play Ventures

Plug and Play is an innovation platform that connects corporations, governments, startups, investors, and universities to drive innovation.

Both backed · 1
$50K – $12M
SOSV

SOSV is a deep tech venture capital firm that makes first-check pre-seed investments and follow-on rounds in startups focused on human and planetary health, providing lab space and hands-on support at its US locations.

$30K – $550K
Breakthrough Energy Ventures

Breakthrough Energy, founded by Bill Gates, backs innovators developing affordable, reliable, and clean energy technologies, investing across manufacturing, electricity, agriculture, transportation, and buildings.

$500K – $50M
Baruch Future Ventures

Baruch Future Ventures is a climate-tech focused family investment firm that backs entrepreneurs building companies in the climate economy.

$100K – $1M
HOF Capital

HOF Capital is a New York-based venture capital firm investing in companies transforming foundational industries through advanced software and AI.

$25K – $15M
Helium-3 Ventures

Helium-3 Ventures is a venture capital firm that backs founders building innovative companies across earth-based and space-focused technologies.

Innovation Works

Innovation Works is a nonprofit early-stage investor supporting the growth of Southwestern Pennsylvania's tech economy through venture funding, accelerator programs, and ecosystem support.

$100K – $300K
Riverfront Ventures, LLC

Riverfront Ventures is an early-stage venture capital fund based in Pittsburgh that invests in early-growth stage technology companies, serving as the venture capital arm of Innovation Works.

$250K – $1M
TDK Ventures

TDK Ventures is the corporate venture capital arm of TDK, investing globally in early-stage entrepreneurs building sustainable and socially valuable technologies.

$5M
ZAKA VC

ZAKA VC is a seed and pre-seed venture capital fund investing mainly in the US and Europe, focused on connecting founders across North America and Europe.

Primer Sazze Partners

Sazze Partners is an early-stage venture firm that backs founders building products with global ambition, providing mentorship and support to help entrepreneurs scale into global businesses.

$500K – $3M

Firms observed investing alongside SeaX Ventures, from public investor directories. Shared companies are the overlap with SeaX Ventures's recorded portfolio.

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