Wilfred Stegeman
Founding Partner at Radicle
Utrecht, Utrecht, Netherlands
Summary
👤
Senior🎓
Top SchoolWilfred Stegeman is a founding partner and serial entrepreneur with over a decade of experience helping startups reach product-market fit and sustainable growth. Based in Utrecht, Netherlands, he has co-founded SchedJoules—the industry-leading API for Public Calendars & Local Events—alongside MarkThisDate.com, MarketDrums.com and Gimmii, while leading ventures in Valley Ventures and Forward Incubator. As a founding partner at Radicle since 2025, he acts as a co-pilot to sharpen value propositions, identify ideal customers, and run rapid experiments for durable growth. He brings academic depth as a Lean Startup/Entrepreneurship lecturer at Sioo, guiding entrepreneurs through value proposition work and research-driven product design. His career spans API-enabled platforms, consumer and B2B ventures, and early-stage teams, blending hands-on product delivery with strategic business development. He earned a degree in Business Economics - Marketing from the University of Groningen and has augmented his growth toolkit with Growth Tribe Academy.
12 years of coding experience
25 years of employment as a software developer
Meander CollegeGrowth Tribe Academydrs., Business Economics - Marketing, drs., Business Economics - Marketing at University of Groningen
Github Skills (8)
api5
customers2
markdown1
swift1
typescript1
zenhub1
openapi1
react1
Programming languages (2)
Github contributions (5)
schedjoules/event-discovery-api
May 2017 - Feb 2019
Contributions:1 push, 2 issues in 1 year 8 months
apiopenapimarkdown
schedjoules/calendar-store-api
Dec 2013 - Sep 2020
Contributions:2 commits, 1 push, 3 issues in 6 years 10 months
apicalendarstore-api
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