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Investing

Pre-seed checks into Nordic and Vietnamese founders

Thesis

Stage
Pre-seed and seed →
Check size: €10k–€50k, occasionally more when I can pull in friends.
Sectors
AI infrastructure, developer tools, cross-border products →
I avoid anything I cannot use or at least test myself.
Geography
Nordics and Vietnam →
I can help more if I can meet you in person at least twice a year.

Portfolio

2025
Lintel — AI-native observability →
Helsinki · pre-seed
2024
Cối — agentic commerce infra →
Ho Chi Minh City · seed
2023
Veer — developer-first survey platform →
Stockholm · pre-seed
2022
Sula — AI-assisted legal review for SMBs →
Helsinki · pre-seed

What I look for

One
Technical founders who can demo the product in 10 minutes →
Two
A specific, opinionated bet on a change in the world →
Three
People I would want as colleagues →
Pitches: pitch@duong.ai
Luc
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Helsinki 60.17°N / 24.94°E