Sami Marttinen

Sami Marttinen

Active Investor

Co-Founder and Board Member at Swappie

Helsinki, Uusimaa

Sami Marttinen, Co-Founder and Board Member at Swappie is an active investor based in Helsinki, Uusimaa. This profile covers what Sami Marttinen backs, at which stage, and how founders can reach out in 2026.

Mr. Sami Marttinen is a Co-Founder and serves as Co-Chief Executive Officer, Managing Director and Board Member at Swappie.

Investor type
Angel
Stages
Early Stage Venture
Invests in
Consumer & RetailE-commerce & D2CClimate & EnergyHardware & Deep TechManufacturing & IndustrialMarketing & AdTech
Location
Helsinki, Uusimaa
Typical check
$500K
Past investments
1

Notable investments

Bought

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Frequently Asked Questions

What does Sami Marttinen invest in?

Sami Marttinen invests in Consumer & Retail, E-commerce & D2C, Climate & Energy and Hardware & Deep Tech, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.

How do I contact Sami Marttinen?

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