Mark Swierszcz
Head of Partnerships Canada at Substack
Toronto, Ontario
Mark Swierszcz, Head of Partnerships Canada at Substack is an active investor based in Toronto, Ontario. This profile covers what Mark Swierszcz backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- Healthcare & BiotechSaaS & EnterpriseConsumer & RetailMedia & Content
- Location
- Toronto, Ontario
- Typical check
- $150K
- Past investments
- 1
Notable investments
How to reach Mark Swierszcz
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Frequently Asked Questions
What does Mark Swierszcz invest in?
Mark Swierszcz invests in Healthcare & Biotech, SaaS & Enterprise, Consumer & Retail and Media & Content, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
How do I contact Mark Swierszcz?
Unlock Mark Swierszcz's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
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