Karlo Siirala
Partner, Co-Head of Private Equity at Castrn & Snellman
Helsinki, Uusimaa
Karlo Siirala, Partner, Co-Head of Private Equity at Castrn & Snellman is an active investor based in Helsinki, Uusimaa. This profile covers what Karlo Siirala backs, at which stage, and how founders can reach out in 2026.
Karlo Siirala is a Partner and Co-Head of Private Equity at Castrén & Snellman, advising on complex cross-border investments.
Karlo Siirala invests in SaaS & Enterprise and Fintech, typically at Early Stage Venture and Late Stage Venture.
- Investor type
- VCPE
- Stages
- Early Stage VentureLate Stage Venture
- Invests in
- SaaS & EnterpriseFintech
- Location
- Helsinki, Uusimaa
- Typical check
- $3.8M
How to reach Karlo Siirala
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About this profile
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Round Funded. "Karlo Siirala." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/karlo-siirala
Frequently Asked Questions
Who is Karlo Siirala?
Karlo Siirala, Partner, Co-Head of Private Equity at Castrn & Snellman is an active investor based in Helsinki, Uusimaa. Karlo Siirala invests in SaaS & Enterprise and Fintech, typically at Early Stage Venture and Late Stage Venture.
What does Karlo Siirala invest in?
Karlo Siirala invests in SaaS & Enterprise and Fintech, typically at Early Stage Venture and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Karlo Siirala invest at?
Karlo Siirala typically invests at Early Stage Venture and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Karlo Siirala's typical check size?
Karlo Siirala typically writes checks around $3.8M. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.