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© 2026 Startup Intros, Inc.San Francisco, CA · Made for Founders

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§ Founder & Investor Profile

Mark Gitsels

ActiveFounder Investor

Updated:Apr 2, 2026

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Quick Facts

Role: Co-founder and Partner
Company: 5square
Status: Active
Type: Founder, Investor

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Experience

Co-founder and PartnerFounderCurrent

Present - Present

Frequently Asked Questions

Who is Mark Gitsels?

Mark Gitsels is Co-founder and Partner at 5square.

What companies has Mark Gitsels founded?

Mark Gitsels co-founded 5square.