Sebastian Wallin
Angel investor in Greater Malm Metropolitan Area
Greater Malmö Metropolitan Area, Sweden
Sebastian Wallin, Angel investor in Greater Malm Metropolitan Area is an active investor based in Greater Malmö Metropolitan Area, Sweden. This profile covers what Sebastian Wallin backs, at which stage, and how founders can reach out in 2026.
Sebastian Wallin is a Co-Founder at Castle, passionate about using software and design to make complex technology accessible and easy to use.
Sebastian Wallin invests in SaaS & Enterprise and Consumer & Retail, typically at Seed and Series A.
- Investor type
- Angel
- Stages
- SeedSeries A
- Invests in
- SaaS & EnterpriseConsumer & Retail
- Location
- Greater Malmö Metropolitan Area, Sweden
- Typical check
- $625K
How to reach Sebastian Wallin
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About this profile
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Cite this page
Round Funded. "Sebastian Wallin." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/sebastian-wallin
Frequently Asked Questions
Who is Sebastian Wallin?
Sebastian Wallin, Angel investor in Greater Malm Metropolitan Area is an active investor based in Greater Malmö Metropolitan Area, Sweden. Sebastian Wallin invests in SaaS & Enterprise and Consumer & Retail, typically at Seed and Series A.
What does Sebastian Wallin invest in?
Sebastian Wallin invests in SaaS & Enterprise and Consumer & Retail, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Sebastian Wallin invest at?
Sebastian Wallin typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Sebastian Wallin's typical check size?
Sebastian Wallin typically writes checks around $625K. 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.