# Mark Tresnowski

> Mark Tresnowski is a startup investor in Chicago. See 0 investments, check sizes, portfolio and contact details. Updated Oct 2026.

- Type: Angel Investor
- Location: Chicago, United States
- Last updated: Oct 2026
- LinkedIn: https://www.linkedin.com/in/mark-tresnowski-71920316
- X (Twitter): https://x.com/Tresesq
- Facebook: https://www.facebook.com/mark.tresnowski

Mark Tresnowski is a startup investor in Chicago. Mark Tresnowski is based out of Chicago, Illinois and is the COO and Co-Founder of Orchard Investment Partners. Mark previously worked at Madison Dearborn Partners, LLC as a Senior Advisor. Mark Tresnowski attended the University of Chicago.

## Contacts

5 contacts available for Mark Tresnowski: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/mark-b-tresnowski?utm_source=investor_profile

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### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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